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New HDMI Mode Will Allow USB-C Connections (techhive.com)

An anonymous Slashdot reader quotes a report from TechHive: On Friday, HDMI Licensing announced a new cable standard that connects USB-C and HDMI devices... The idea, naturally enough, is to to develop an HDMI-to-USB Type-C cable that ties together the most common cabling protocols in both the PC and consumer electronics industries, eliminating the need for an adapter or special silicon. Source devices like PCs, tablets, and smartphones will be able to output HDMI video and multi-channel audio from a USB-C port, just as they can now with DisplayPort.

"The USB Type-C connector is gaining traction in the mobile and PC markets," said HDMI Licensing, LLC president Rob Tobias. "Consumers expect to easily connect these devices to displays with a USB Type-C to HDMI cable and utilize the capabilities and features of native HDMI. This specification will also result in more source devices incorporating HDMI," which already total about 6 billion, he said.

HDMI Licensing expects to see products launching with this new technology "early next year".

85 comments

  1. This will never take off since it is closed... by Anonymous Coward · · Score: 5, Informative

    and has abusive licensing fees. My company has been talking about adding this to future products, and they want more money for this than it costs us to add an HDMI port and our profit, combined.

    1. Re:This will never take off since it is closed... by Anonymous Coward · · Score: 0

      What sort of lovely content protection schemes will encumber this?

    2. Re:This will never take off since it is closed... by rsmith-mac · · Score: 1

      and has abusive licensing fees. My company has been talking about adding this to future products, and they want more money for this than it costs us to add an HDMI port and our profit, combined.

      Are you talking about the USB-IF or HDMI LLC levying licensing fees here? The way you describe it, it sounds like you're talking about fees for USB-C, which doesn't make a whole heap of sense as there are no per-unit fees for the USB standards. HDMI on the other hand does, and those aren't very well publicized. Are you saying that the HDMI org is charging extra for HDMI-over-USB-C?

    3. Re:This will never take off since it is closed... by Guy+Harris · · Score: 1

      What sort of lovely content protection schemes will encumber this?

      "High Bandwidth Digital Content Protection (HDCP 1.4 and HDCP 2.2)", as TFA says. Same thing as other flavors of HDMI.

    4. Re:This will never take off since it is closed... by Anonymous Coward · · Score: 2, Interesting

      It will take off because the cost of this will be born by the cable buyer instead of the laptop or computer vendor.

      Meanwhile HDMI 1.4 remains the best option to connect rec.709 monitors (eg TN and IPS displays at 1920x1200) while Displayport is the only option to connect 4K and 5K monitors with rec.2020 colorspace (which no monitor supports yet.)

      It will be a while before it happens, but what this means is that all motherboards will only have USB-C connectors on them. If you want to connect USB 1.1 or USB 2.0 devices, you will need a USB hub that connects into a USB-C 3.1 port.

    5. Re:This will never take off since it is closed... by Anonymous Coward · · Score: 0

      DisplayPort (DP) was specifically created to combat the copyright fees associated with HDMI. Use DisplayPort and rid the world of HDMI.

    6. Re:This will never take off since it is closed... by mlts · · Score: 2

      That is a downer.

      I've thought the ideal would be something that can take USB-C, Thunderbolt, HDMI, DisplayPort, an IEEE1394 descendant, and a smart, two-way charging protocol, and have it just plain work. Let the devices figure out if they need to use a USB style tree configuration, a Thunderbolt or IEEE 1394 daisy chain, a direct negotiation for HDCP video, or just a direct connect to figure what device had power, what was requesting, and negotiate from there.

      Other than the power aspect, maybe the next "universal" connector should be one with wires for power, as well as two fiber optic leads, and have this done in an idiot-resistant, high insertion/removal cycle connector. From there, devices can negotiate what protocol to use over the glass, and how power flows.

    7. Re: This will never take off since it is closed... by Anonymous Coward · · Score: 0

      I think he's saying "I'm making shit up because I'm a moron". At least, that's what I heard him say.

    8. Re:This will never take off since it is closed... by Anonymous Coward · · Score: 1

      From how I read it, the fee is to make a USB-C port able to talk with HDMI directly, and charged by HDMI Licensing.

    9. Re:This will never take off since it is closed... by kheldan · · Score: 2

      Hear, hear.

      Now, if they did this with DisplayPort, that'd be a different story, since it's (last time I checked) royalty-free.

      --
      Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
    10. Re:This will never take off since it is closed... by tobiasly · · Score: 1

      Hear, hear.

      Now, if they did this with DisplayPort, that'd be a different story, since it's (last time I checked) royalty-free.

      I apologize in advance if this was a joke and the subtle humor eluded me (I'm not familiar w/ DP licensing) but DisplayPort has supported USB-C Alt Mode for quite a while already. Many laptops with USB-C connectors, such as recent MacBooks and the 2015 Dell XPS 13/15 models support it.

      http://www.displayport.org/wha...

  2. I still haven't seen USB-C anywhere. by Anonymous Coward · · Score: 0

    Maybe I should go into a Best Buy or something.

    1. Re:I still haven't seen USB-C anywhere. by ITRambo · · Score: 1

      You haven't been looking for it then. It's even on plenty of cheap ($300) laptops. It's small and might be overlooked.

    2. Re:I still haven't seen USB-C anywhere. by Anonymous Coward · · Score: 0

      Again, not even looked at a laptop newer than 2010 or so.

    3. Re:I still haven't seen USB-C anywhere. by DrXym · · Score: 3, Insightful

      I've seen some but they cost way more money than a micro-B. Type-C is a complex standard, with active cables for devices that negotiate bus currents and there are lots of faulty cables and chargers out there. Perhaps that's why enthusiasm for USB type-C appears so underwhelming. It might be superior but micro-B is cheap and most people already have lots of devices, cables & chargers for that spec.

  3. HDMI is from the world of USB 2.0 and 1080i. by Anonymous Coward · · Score: 1

    DisplayPort is a much better solution for most devices.

    1. Re:HDMI is from the world of USB 2.0 and 1080i. by Citizen+of+Earth · · Score: 1

      DisplayWho?

    2. Re:HDMI is from the world of USB 2.0 and 1080i. by ITRambo · · Score: 2

      And yet, HDMI is on hundreds of millions of HD televisions that aren't going anywhere soon.

    3. Re:HDMI is from the world of USB 2.0 and 1080i. by Dahamma · · Score: 2

      Actually, HDMI 2.0a is a much better solution for *most* devices - since most devices are TVs that already support it. 2160p @ 60Hz w/ HDR10 or 12 bit DolbyVision packed in 4:2:2 is WAY more than your eyes will ever perceive from a normal distance.

    4. Re:HDMI is from the world of USB 2.0 and 1080i. by SensitiveMale · · Score: 1

      Displayport will be routed over the USB-C connector.

    5. Re:HDMI is from the world of USB 2.0 and 1080i. by blindseer · · Score: 3, Informative

      And yet, HDMI is on hundreds of millions of HD televisions that aren't going anywhere soon.

      Which is readily solved with an inexpensive DP to HDMI adapter cable. The passive DP++ to HDMI cables are less than $10, and active DP to HDMI cables are less than $20. It seems rare to find a new computer that lacks a mini or full sized DP output. Assuming a USB-C connector has a DisplayPort alternate mode then a DP/USB-C to HDMI cable is trivial to produce, and produce cheaply.

      Assuming the USB-C connector has a Thunderbolt alternate mode then one can connect any of a number of PCIe compatible video chips, allowing for HDMI or any other output to match whatever input that display might have. Price will vary based on desired output quality, of course. Given the many cheaper options I expect this to be used rarely, especially to connect to a 1080p or less TV that has nothing better than HDMI to drive it.

      Assuming that the USB-C connector has a MHL alternate mode then HDMI support is included, if I'm reading the spec correctly. I found an adapter that has a micro-USB male connector on one side and female HDMI on the other and claims to use the MHL protocol for less than $10.

      Assuming the USB-C connector has a, quite likely, USB mode then one can find a USB to HDMI adapter already for reasonable price. A quick search shows I can get one for less than $30, which also happens to be a USB-C to HDMI adapter. Adapters with USB-A connectors look to be almost double that but it may just be a matter of not finding the cheapest ones in my search.

      I'm quite certain that the HDMI people are getting paid for the privilege of us using their connector and/or protocol on anything we buy. What they seem to be doing here is wanting us to pay for the privilege of the HDMI protocol on future USB-C devices even if we have no intention of ever using that capability.

      Looks to me like a sneaky way to add a HDMI tax on a device for all for the benefit of the few that would actually use it. As they seem to tax per port then if I have a device that can output HDMI on DP and USB-C then I'm paying double for something I am unlikely to use. As the cost to me is likely less than the $10 I'd expect for an adapter that lacks this feature I can't complain much. What I do see though is a flood of money potentially going their way from the sale of devices with this feature.

      --
      I am armed because I am free. I am free because I am armed.
    6. Re: HDMI is from the world of USB 2.0 and 1080i. by ewanm89 · · Score: 1

      Until you want 4k@144hz...
      Oh and yes a human can distinguish the difference in framerates above 60Hz, especially with interactive media. The
      This is why current vr headsets run at 90fps of 120fps, humans do distinguish it and the latency between head tracking and display update can cause simulation sickness.

    7. Re:HDMI is from the world of USB 2.0 and 1080i. by Anonymous Coward · · Score: 0

      Pfff.. I run my two Dell monitors off my laptop by daisy-chaining my DisplayPort. Makes the wiring much neater too.

      ThunderBolt from laptop to "dock/hub". DisplayPort from dock to first monitor, DisplayPort from first monitor to second monitor. Configure screens in X to be side by side. Let's see HDMI do that...

    8. Re: HDMI is from the world of USB 2.0 and 1080i. by Dahamma · · Score: 1

      At which point HDMI will support 4K @ 144Hz. HDMI is meant for consumer electronics, until TVs or VR headsets can handle 4K @ 144Hz it doesn't really matter.

      I understand well the implications, I have a Rift and my day job involves streaming 4K HDR video.

      The highest end consumer VR today is 2x 1080x1200 x 90Hz. It's not bad but definitely not at the limit of human vision. Double that and it will (notwithstanding peripheral vision enhancements) start to approach those limits. If HDMI bandwidth is increased by 2-4x it would meet that. Not too far fetched for the next few years. TVs won't do it but who cares, TVs aren't VR.

      The point is it's stupid to claim standards are limiting the technology, right now the technology is limiting the standards.

    9. Re:HDMI is from the world of USB 2.0 and 1080i. by jedidiah · · Score: 2

      I'm not sure why you would want to really. You gain exactly zilch there.

      The 80s called, they want to talk to you about daisy chaining and how stupid and annoying it was.

      --
      A Pirate and a Puritan look the same on a balance sheet.
    10. Re:HDMI is from the world of USB 2.0 and 1080i. by Anonymous Coward · · Score: 0

      Are you the mayor of Assumptiontown?

  4. Woohoo Standards! by bstrobl · · Score: 3, Informative

    Honestly the USB-IF should have come up with their own official display profile at this stage, this is becoming ridiculous. We now have Displayport, MHL and HDMI as Alt-modes as well as displayport over thunderbolt carried by type-c. Ugh.

    Connector is great and all but the current implementation is trash.

    My guess is only one gets used while rest will be ignored, most likely Displayport due to existing implementations as well as Thunderbolt requirements and more up-to-date versions (DP 1.3 vs HDMI 1.4 only). No manufacturer will want to pay additional money in order for all of them to be supported (increased licensing costs as well as more expensive chipsets).

    1. Re:Woohoo Standards! by blindseer · · Score: 2

      After reading up on this some today I see it's more complicated than just having multiple competing video display modes on one connector, the cables will also be different.

      A USB-C cable may not necessarily be able to carry HDMI unless specifically designed to do so. For example, a Thunderbolt 3 cable, which uses the USB-C connector, will fall back to USB-C if either device does not support the faster Thunderbolt protocol. Such cables will certainly be more expensive than a cable that does only USB-C. Thunderbolt is backward compatible with DisplayPort and so we know that one cable will do USB 3.1, Thunderbolt 3, and DisplayPort 1.2 (or perhaps newer). I found nothing to suggest such a cable will be capable of also supporting HDMI, MHL, or whatever other protocol that might share this port.

      I see that the USB-C spec allows for a passive cable which I assume would allow for any protocol to pass, but there is a cost is in limited bandwidth and length. For example, one can use a passive cable for Thunderbolt 3 but the cable is likely limited to one meter (instead of three), and 5 Gb/s (instead of 40 Gb/s). A passive USB-C cable would also be limited to USB Gen1 speeds, not the faster Gen2. If HDMI is similarly limited then one might get only a 1080p image instead of 5K, assuming it works at all.

      Not only does this make HDMI on USB-C appear to be doomed to fail but it also adds further confusion to the use of USB-C by consumers and may therefore make USB-C less attractive. USB in all its various versions is complicated enough before adding the alternate modes. There are three types of connectors (A, B, C), in three sizes for some (standard, mini, micro), in five different speeds (1.5M, 12M, 480M, 5G, and 10G), and I lost count on how many levels of voltage and amperage.

      Calling this "ridiculous" is about right.

      --
      I am armed because I am free. I am free because I am armed.
    2. Re: Woohoo Standards! by Anonymous Coward · · Score: 0

      But hey, the connectors reversible!

    3. Re: Woohoo Standards! by blindseer · · Score: 1

      But hey, the connectors reversible!

      But the cables might not be!

      Imagine someone wanting to connect a USB-C computer with a port that does not support MHL or HDMI, which shouldn't be hard since that is likely 100% of the computers that have been made for years now. Now imagine a display with a USB-C port that uses only MHL and/or HDMI that someone wants to connect to that computer they bought in the last five years. Now this person will have to go shopping for a cable that connects a USB-C port carrying USB 3.1 or Thunderbolt to another USB-C port carrying MHL or HDMI.

      It used to be that we'd have a keyboard port, a mouse port, a printer port, and so on. A port for everything and everything connected to its port. Not utopia exactly but if the connector fit we had a high probability of the devices talking to each other. Now we can have a single connector that can be talking any one of four (?) protocols. Unless one take care to look at the little icons, which might rub off with use, it's very possible to be using the right cable for the job but using the wrong end on each device.

      PROGRESS!

      --
      I am armed because I am free. I am free because I am armed.
  5. Hellloooooo DRM! by Anonymous Coward · · Score: 2, Insightful

    Yeay, now we get to have DRM stuff on our USB chipsets!
    Yeay!
    I'm oh so happy!

  6. ahhhh by Anonymous Coward · · Score: 0

    The latency shall be most amazing with that. As is HDMI puts 30-60ms of it. So the cpu encode to usb then to hdmi then hdmi to panel should be most awful.

  7. Re: Malicious ads on slashdot by Anonymous Coward · · Score: 0

    Which ads? I block everything, so I'm wondering what's going on.

  8. DP 1.3 vs. HDMI 1.4 by pushing-robot · · Score: 4, Informative

    Source devices like PCs, tablets, and smartphones will be able to output HDMI video and multi-channel audio from a USB-C port, just as they can now with DisplayPort.

    Yes, and they can do 4K @ 120Hz over DisplayPort's USB-C implementation, or 4K @ 30Hz over ours! Just the same!

    --
    How can I believe you when you tell me what I don't want to hear?
  9. And it is HDMI 1.4b only... by ffkom · · Score: 1

    so they can sell yet another "upgrade" to some HDMI-2.x transfer via USB-C, right? Vade retro, Satanas!

  10. Complexity collapse by Sqreater · · Score: 2

    Oh, great, now how many cables and connector types are we supposed to keep track of in order to correctly connect our devices? I've set aside an entire room for cable variants now.

    --
    E Proelio Veritas.
    1. Re:Complexity collapse by Citizen+of+Earth · · Score: 1

      Oh, great, now how many cables and connector types are we supposed to keep track of in order to correctly connect our devices?

      Just one. That's the point.

    2. Re:Complexity collapse by Guy+Harris · · Score: 2

      Oh, great, now how many cables and connector types are we supposed to keep track of in order to correctly connect our devices?

      Just one. That's the point.

      One type of connector - USB-C - but multiple types of cables (USB Type-C to HDMI, USB Type-C to USB Type-B for older devices such as disks, etc.).

    3. Re:Complexity collapse by Anonymous Coward · · Score: 1

      No the point is to collect HDMI licensing fees.

    4. Re:Complexity collapse by blindseer · · Score: 3, Interesting

      No the point is to collect HDMI licensing fees.

      Precisely. It's rare to see HDMI on anything new, at least in my experience. They already collected their fee on the devices they've sold that included the port. They will collect in the future on anyone that buys an adapter that wants to preserve compatibility with these older devices, assuming that it's not replaced too.

      I see this as an attempt to hang on a bit longer to collect their fees. They are hoping that people will seek this capability out in order to maximize backward compatibility and/or manufacturers will be willing to pay the fee so as to add another feature to their device in order to grab a few more buyers that are checklist shoppers.

      The only problem this solves is the diminishing income they have from fewer new devices with HDMI ports.

      --
      I am armed because I am free. I am free because I am armed.
    5. Re:Complexity collapse by Desler · · Score: 2

      Precisely. It's rare to see HDMI on anything new, at least in my experience.

      You mean except for every single TV?

    6. Re:Complexity collapse by blindseer · · Score: 1

      Oh, great, now how many cables and connector types are we supposed to keep track of in order to correctly connect our devices?

      Just one. That's the point.

      Perhaps you speak generally and this does not apply, how is supporting HDMI on USB-C supposed to help? HDMI on USB-C is really only useful if one is interested in connecting a new device that does not wish to set aside the space and expense of a single purpose port like HDMI but also wishes to support legacy HDMI. Since USB to HDMI adapters are already available pretty cheap I see this as a solution looking for a problem.

      Setting aside the HDMI on USB-C announcement there are still the many other cables that plug into USB-C with some other connector on the other end, we'll need to sort through those. Getting everyone to agree on one port/connector to rule them all is a wish that is not likely to ever come true. Not that I'd want it true as any such connector will inevitably be a compromise.

      Even if all one had was USB-C connectors on every device, which I believe may be possible for someone to do if one was so inclined, there is still the problem of the many iterations of USB-C. This may solve the problem of having a pile of different cables since now one might get away with a single pile of USB-C cables but all USB-C ports are not equal. A device might need the higher power output as defined in the USB Power Delivery spec to function, this is not required by USB-C. A device might need the USB 3.1 speeds to function, but this is not required by the USB-C spec.

      A device may require an alternate mode of USB-C to function, but this may be limited to devices and/or cables with some different connector on the other end of the cable. Presumably a USB-C device will fall back to USB protocol if the preferred alternate mode is not supported but maybe not. For example a display with a USB-C input could support one or more of HDMI, MHL, DisplayPort, or Thunerbolt modes but if your device only supports the USB protocol on the USB-C ports they will connect physically with the cable but there will be no video displayed. It's cases like this that are likely to be most frustrating for the novice user, they will see two identical ports and be able to connect them with a cable but their devices still won't work with each other.

      It seems to me that this could be more than just a solution looking for a problem. I could argue this is a solution that will produce more problems. The USB people have already created enough animosity towards them from the ten different connector types, five different data speeds, two different voltages, and four different amperage ratings. What they don't need is to add another alternate mode to the spec when there are already four supported modes that will carry video.

      I know tone of voice doesn't carry well in type so don't think I'm mad at you or anyone else that sees this as a fix to a problem. I'm frustrated at the USB people for making my job more difficult as someone that has to support these devices.

      --
      I am armed because I am free. I am free because I am armed.
    7. Re:Complexity collapse by blindseer · · Score: 1

      Precisely. It's rare to see HDMI on anything new, at least in my experience.

      You mean except for every single TV?

      A solution already solved with existing inexpensive USB-C to HDMI cables. People will have to buy a cable to match the two devices regardless of the connector on each. I'm finding it real difficult to come up with a problem this is supposed to solve.

      I suppose it is possible to see future TVs with USB-C inputs but then the question is, why even bother supporting HDMI on that port? USB-C alternate modes already include MHL and DisplayPort. HDMI is limited to 4K @ 60Hz currently. DisplayPort will do 5K @ 120Hz or 8K @ 60Hz. MHL will do 5K @ 60Hz. If TV makers want to support HDMI devices then put on some HDMI ports, it's not like a 60 inch TV, or even a "tiny" 20 inch TV, is going to be lacking the space for a full sized HDMI or DP++ (which is backward compatible to HDMI) port. Again, adapter cables are cheap and one is going to have to buy a cable to connect the devices regardless of the ports on the devices. Just get the right cable.

      Still not seeing the problem this is supposed to solve besides diminishing HDMI port fee income.

      --
      I am armed because I am free. I am free because I am armed.
  11. The Bad with the Good. by Anonymous Coward · · Score: 0

    This sounds great but if HDMI takes over and forces encryption, IP protection, or what ever they may wish than this is a horrible idea.

    1. Re:The Bad with the Good. by Dahamma · · Score: 3, Informative

      HDMI has nothing to do with IP. It does support HDCP - but HDCP is a separate standard. It's not a horrible idea because studios offering UHD movies are not going to magically stop caring about content protection/DRM - all HDMI over USB-C will do is make it easier to create devices that support the existing required protections.

    2. Re:The Bad with the Good. by tlhIngan · · Score: 1

      HDMI has nothing to do with IP. It does support HDCP - but HDCP is a separate standard. It's not a horrible idea because studios offering UHD movies are not going to magically stop caring about content protection/DRM - all HDMI over USB-C will do is make it easier to create devices that support the existing required protections.

      DisplayPort supports HDCP as well. In fact, you'd be hard pressed to find a DVI, DisplayPort OR HDMI sink that doesn't support HDCP these days. Well, maybe HDCP2.2, because it's so new, but HDCP 1.4 should be supported on practically any display device you buy today, including computer monitors.

      And yes, most video cards support HDCP over their digital links today, as well. So your existing set of laptops with USB-C probably already support HDCP as well. Even when they're running Linux - HDCP is in general handled automatically by the output formatter so very little software is needed to enable it - the keys and all that are pre-burned into the hardware.

    3. Re:The Bad with the Good. by Dahamma · · Score: 1

      Well, maybe HDCP2.2, because it's so new, but HDCP 1.4 should be supported on practically any display device you buy today, including computer monitors.

      Wait, *so new"?! I assume you aren't in the industry, because HDCP 2.2 is already current-to-last generation for new development purposes.

      Even when they're running Linux - HDCP is in general handled automatically by the output formatter so very little software is needed to enable it - the keys and all that are pre-burned into the hardware.

      Sadly, that doesn't really matter for the next gen DRM. The content needs to be handled by a securely booted OS with TEE and protected video path before you see any 4K on a PC. Kaby Lake may provide that, as long as you are using the integrated decoder/graphics. Good luck on an external card, there will probably need to be a new bus standard for that...

  12. Do not want! by blindseer · · Score: 1

    The USB spec is already confusing, and they want to make it worse. We already have multiple voltage and ampere ratings to deal with. There's a confusing number of connectors as it is. I will admit though that this problem will solve itself in time as old devices die and we are soon left with mostly just USB-A, USB-micro-B, and USB-C.

    The USB-C spec already includes two video modes, MHL and display port. As I see it HDMI is largely dying as a spec, just let it die. At work we have a lot of older computers with DVI-I outputs, which can output VGA or HDMI with a passive cable. I have yet to see a display that has an HDMI input. TVs will have HDMI, sure, but I even wonder how long that will last. The new computers that we get have DisplayPort and/or VGA. Even DVI output is rare any more, which is largely identical to HDMI except in the connector.

    I can see why the HDMI people want to use a different connector for their video standard but I'm having trouble understanding the desire to use the USB spec, they are putting themselves in direct competition with the already established MHL and DisplayPort. What really confuses me though is the USB people agreeing to this.

    I know that when one feels the need to ask, "Why?" the answer is usually, "Money." Where is the money in this though?

    I don't get it. I don't want it. I'd rather use DisplayPort, VGA, or even DVI. Much of my complaint with HDMI is with the crappy connector but that is solved with using DVI or DisplayPort connectors. When it comes down to it I don't much care what protocol is on the wire so long as it works. I don't see the advantage to adding the HDMI protocol to anything. In fact it may make things worse since I'd have to pay the HDMI license fee for my device if it has it.

    --
    I am armed because I am free. I am free because I am armed.
    1. Re:Do not want! by Billly+Gates · · Score: 1

      This and the merging of thunderbolt with USB type c means you can have external video cards you can plug into a monitor all from the USB port.

    2. Re:Do not want! by Trongy · · Score: 2

      The corporate office where I work has many meeting rooms with projectors or TV screens. Typically there are two connectors wireed to the meeting room table - VGA d-sub and HDMI. I will never get the time back which I have spent watching presenters faff around with getting their display working.

      More generally, the problem for the device owner is to have a connecting cable which will work with any foreign display they need to present on. I'd rather use DisplayPort myself, but the most commonly available digital port is HDMI. The sad reality is that USB-C HDMI output is going to be the most frequently used display output from next generation devices.

      MHL uses the same physical connector as HDMI (at the display end) and the average punter isn't going to know if a given display supports MHL. I forsee that in the future, people will have the same problem with USB-c connections. They same physical port supports so many display standards that people who don't read the manual are going to become frustrated figuring out which ones are suppoted on a given device.

      Ideally, I would like to see some sort of wireless display standard that's easy to pair and widely adopted, but that's not happening any time soon.

    3. Re:Do not want! by blindseer · · Score: 1

      I think I see your problem but this HDMI over USB-C only complicates things. It's rare to see a laptop that does not have a Thunderbolt, MiniDP, DVI, or even VGA to go along with an HDMI port. If the HDMI port is lacking then there are cheap adapters for MiniDP and (fat) DP. If the port is DP++ then HDMI support is there from a passive cable. Passive adapters are typically less than $20. Active adapters can be as much as $80 for the multi-ported ones from Apple, but more like $40.

      With a cable that has USB-C on one end and HDMI-A on the other one would have to know which protocol it is speaking on each end, and then see if the source and sink devices speak that protocol. The HDMI end might be MHL or HDMI, and whatever versions those might be. The USB-C end might speak HDMI, MHL, DP, TB3, or only USB. That one cable configuration could have one of ten different kinds of circuitry in it, and you'll need to know which one will work and how to tell them apart.

      In the case of doing a presentation in an unfamiliar lecture hall I'd want to keep the number of cables to a minimum while maximizing my chances of getting things to work. The best is likely a USB 2.0 to some version of HDMI. I might not get the best resolution but the chances of success would be very high. A cheap VGA adapter in my bag for the worst case. If I'm feeling lucky I can bring a Thunderbolt cable, those support USB3, MiniDP, and Thunderbolt as part of the spec, expensive but versatile and high bandwidth. Another way that might maximize results with little expense is a passive MHL cable if the source device supports it. That would be cheap and give up to 4K video.

      This was a problem solved already with DP and MHL. For those that want HDMI from a computer with USB-C then an active cable may be wanted regardless to get passed the limitation of supporting only HDMI 1.4,

      --
      I am armed because I am free. I am free because I am armed.
  13. Re:Malicious ads on slashdot by FlyHelicopters · · Score: 2

    Fix your ads yo

    Ad Block... it is the only safe way to browse the web...

  14. HDMI, USB type, and Thunderbolt merging by Billly+Gates · · Score: 1

    USB type C can already go underthunderbolt and thunderbolt supports external video cards to boast performance ... weird.

    In actually they are merging together as they just use each others protocols and can adjust electrical settings and drawl on demand.

  15. Love it. Love it. Love it. by SensitiveMale · · Score: 2

    I can't wait until everything is routed over USB-C.

    Displayport.
    Thunderbolt.
    HDMI.
    USB.
    Everything.

    I especially can't wait until internal hard drives are using USB-C for data and power.

  16. If only... by transami · · Score: 1

    Sigh. HDBaseT. Sigh.

    --
    :T:R:A:N:S:
  17. This Is Crap by Anonymous Coward · · Score: 1

    Seriously, they are just confusing the market by serially adding one data standard to another connector, ad infinitum. Queue to Grandma/Grandpa attempting to plug any connector into any other port, because they have been trained by the one device that just happens to support cross-compatibility.

    Already the large USB connector looks about the same size and shape as the HDMI port, which looks roughly the same size and shape as the DisplayPort connector, which is roughly the same size and shape as the eSATA port. In fact you can confuse any of the above with the Ethernet port if you are operating by feel, or have very poor lighting, or have poor eyesight. And the Ethernet socket is least like the rest.

    Unless they go All-In and unify it all, this is crap. If you could truly make one cable do everything (an uber-USB if you will), then I would support this. But one standard at a time? Crap! Only Thunderbolt had the potential to do it all and Thunderbolt never caught on outside of Apple. Apple never promoted TB adoption outside of Apple because, well, Apple is used to going it's own way and doesn't much care about the computing ecosystem outside it's own borders.

    1. Re: This Is Crap by ewanm89 · · Score: 1

      Thunderbolt is a major security issue as thunderbolt devices (along with all PCI, PCI express, expresscard and FireWire) have direct memory access. Direct memory access allows reading and writing directly to the system memory bypassing the operating system and any protections it has. This is for performance reasons and makes some degree of sense until you start to put it on external interfaces users will plug anything into... FireWire was not allowed in a lot of companies for exactly the this reason.

      USB has its own security issues inherent in it, though not as bad as bypassing software protections and in some more sensitive workplaces they have the USB ports sealed too. What are you going to do when there is no other option than to plug the monitor in view a USB port, you can't seal ports that use insecure protocols if all devices, secure or not use the same port. Oh and now, I can hide my attack in the display that usually would only give me HDMI ddi data access with a lot larger attack surface.

    2. Re: This Is Crap by Anonymous Coward · · Score: 0

      Thunderbolt is a major security issue as thunderbolt devices (along with all PCI, PCI express, expresscard and FireWire) have direct memory access. Direct memory access allows reading and writing directly to the system memory bypassing the operating system and any protections it has. This is for performance reasons and makes some degree of sense until you start to put it on external interfaces users will plug anything into... FireWire was not allowed in a lot of companies for exactly the this reason.

      I recall seeing firewire ports disabled on work PCs, but I had not realized it was a problem inherent in firewire in general. Of course encryption doesn't have to be limited to long term storage... Still, DMA via external interfaces seems insane. At the very least this should be disabled by default. Hell any random device could likely compromise the system, particularly if it can somehow figure how to place something that will be executed. I wonder if any voting machines have firewire. Then again you probably don't need to try that hard.

    3. Re: This Is Crap by blindseer · · Score: 1

      The prevalence of these multipurpose, and therefore two-way, connections are problematic as you point out. I suppose it is possible to require all ports be forced to legacy protocols through adapters to make them one-way again. That only works so long as the parts to do that are available.

      Perhaps rather than trying to source computers and peripherals that use secure connections it may be possible to find someone willing to make cables that are secure. Computers and displays are expensive but the cables are cheap. If someone can make "hobbled" cables that force it to one way only communications cheap enough then perhaps a market could develop. It might mean a cable that would normally sell for $10 is now $100 but that would be cheap compared to, for example, trying to get someone to produce a "certified secure" 5K display. I'm sure the market would include more that just people in the corporate world, I can imagine quite a few paranoid computer users would buy them too.

      Since the devices need to talk to each other the cables would have to be at least somewhat application specific. For example the cable cannot simply cut the outgoing data line but leave the incoming line intact, the computer would have to know if the device on the other end is a printer, video display, or whatever. I can imagine making a cable that reports itself as a standard display and pass through only the outgoing video would be relatively trivial. I don't know if that is a viable solution or not, perhaps there are better ideas out there.

      --
      I am armed because I am free. I am free because I am armed.
    4. Re: This Is Crap by Anonymous Coward · · Score: 0

      The firewire chipset and probably others support masking address spaces. This means the OS can actually protect all memory, except for the region that a device is allowed to do DMA to. Linux does support this right now I believe. But since firewire is daisy chained, it may be possible for another device to do a DMA transfer right after the disk has done one, overwriting what was there.

  18. Re:Love it. Love it. Love it. by blindseer · · Score: 2

    I especially can't wait until internal hard drives are using USB-C for data and power.

    I remember when FireWire was supposed to come to internal hard drives for data and power. I still come across PCs at work with an internal FireWire port for this reason. Obviously it didn't happen. Lots of things killed it.

    FireWire isn't dead yet though, I still see it on professional audio equipment.

    Here's an idea, let's do FireWire over USB-C. Too much? Well, we passed "too much" on USB-C a long time ago.

    --
    I am armed because I am free. I am free because I am armed.
  19. Stupid from a security sense by ewanm89 · · Score: 1

    We all know USB already has various security issues by its nature. And until they added (the little used) Ethernet causality down HDMI cables, we were pretty safe from video cables being an attack vector, but if we start all pushing it down USB. What's to say my companies smart TV on a firewalled subnet that I also use as a secondary display doesn't also connect thunderbolt or USB down one of these cables? No more just not plugging suspicious devices into USB ports when all the machine has is USB ports. This is getting ridiculous.

    1. Re: Stupid from a security sense by ewanm89 · · Score: 1

      *compromised smart tv

    2. Re:Stupid from a security sense by squiggleslash · · Score: 1

      One of the current standards, I forget which, actually has the entire PCI-E bus on it, and I can't remember if basic HDMI has USB on it or if they're still talking about it, but either way I don't think things are heading in the direction you'd prefer ;-)

      --
      You are not alone. This is not normal. None of this is normal.
    3. Re: Stupid from a security sense by ewanm89 · · Score: 1

      Expresscard and thunderbolt.

  20. Re:Love it. Love it. Love it. by Anonymous Coward · · Score: 0

    I only use FireWire for a digital camcorder I got around 2004. It's all I've ever used it for, actually.

  21. Re:Love it. Love it. Love it. by short · · Score: 1

    Internal hard drives (=flash drives) are becoming NVMe.

  22. Pedant Alert!! by blindseer · · Score: 1

    I don't believe the title here is accurate. It's not a new HDMI mode that allows the USB-C connections. The HDMI spec was expanded to support the USB-C connector. The USB-C spec supports alternate modes, which now includes the HDMI alternate mode.

    Would not a more accurate title be:
    "New HDMI Spec Defines USB-C Alternate Mode"?
    Or:
    "HDMI Will Soon Allow Connection By USB-C Port"?

    Then there is this line from the linked article:
    "Connecting a USB-C device to an HDMI display has been something of a mess, until now."

    Yes, a "mess" for certain... Not. I go to Google and search for USB-C to HDMI cables and adapters and find multiple hits for suitable devices under $50. Most of those are dongles with a male USB-C to female HDMI, which means a "mess" of adding an HDMI cable. Finding a cable with USB-C on one end, and HDMI male on the other, might take a bit longer and a few more bucks but it's a "clean" conversion from USB Gen2 to HDMI 1. If one was short on funds and didn't mind some "mess" then a Type-A USB connector to HDMI or DVI adapter can be found, along with whatever cable is needed from there. This can plug into the more common USB 3.0 plug, which is typical on many computers and USB-C docks that people with USB-C laptops and even desktops would have.

    There is no shortage of options to mate a modern computer to a display with HDMI input. If one feels they must use a USB port for this job then there are solutions, many with very high reviews. It would make more sense to connect this HDMI display to, you know, the HDMI port that most any PC has. Lacking that there are passive and inexpensive adapters for DVI and DP++. Active adapters don't cost much more. Thunderbolt to HDMI adapters exist too, which might give the best picture since that allows for a much more capable GPU than just a meager protocol conversion.

    I have not yet seen a display that supported only HDMI. There is almost always one or more of a DVI, DisplayPort, component, or VGA port. It's not too hard to find a display with all the above. Again with inexpensive passive adapters that can turn HDMI to DVI or DisplayPort there does not seem to be a problem. One might see a problem in paying $79 for the Apple USB-C Digital AV Multiport Adapter but it allows for charging at the same time it provides HDMI output, and even a USB 3 Type-A port for other devices. Expensive but not "messy" since it is effectively a dock for the MacBook Air.

    We already have plenty of standards, I don't see how this new one resolves any "mess".

    --
    I am armed because I am free. I am free because I am armed.
  23. Re:Love it. Love it. Love it. by BESTouff · · Score: 2

    I can't wait until everything is routed over USB-C.

    You don't get it. Everything will be routed through USB-C, but it will be only one protocol at a time. So you will have to carefully choose your port, cable and device that go together if you ever want Displayport, Thunderbolt, HDMI or whatever else which isn't plain USB working correctly.

  24. Re:Love it. Love it. Love it. by Anonymous Coward · · Score: 0

    It was excellent for external hard drives. Far faster than the USB port on the same drives.

  25. FlyHelicopters? by Anonymous Coward · · Score: 0

    moar liek ShamelessThief amirite?

  26. USB-C is a bad spec by bernywork · · Score: 4, Insightful

    After Anker recalled their USB-C cables the other day, there was an article on The Register about it, the comments section had a great bunch of comments in it including: "it's a design error An electrical specification which allows multiple, software-controlled supply voltages, but does not require connected devices to tolerate the highest available voltage. What could possibly go wrong?" I can see a lot of fried TVs when people push 20A at 5V into their TVs because of a bad cable. Anyway, comments section worth a read: http://forums.theregister.co.u...

    --
    Curiosity was framed; ignorance killed the cat. -- Author unknown
    1. Re:USB-C is a bad spec by Anonymous Coward · · Score: 0

      You can't push overspec amps at minimum voltage.

    2. Re:USB-C is a bad spec by thegarbz · · Score: 3, Insightful

      USB-C Spec is fine. The problem is not adhering to the spec which could be done in any scenario.

      e.g. The original USB spec covered powersupply in great detail. The spec says "No device shall supply (source) current on VBUS at its upstream facing port at any time. From VBUS on its upstream facing port, a device may only draw (sink) current."

      So they redundantly said the same thing twice.
      Let's just say I wouldn't ever recommend buying a hub off ebay or any even slightly shady looking vendor. About 100% of the hubs that people say "don't work" actually apply 5V to the upstream port. I even found a frigging reference design from a Chinese manufacturer of USB hub chips which showed on the schematic a 5V supply connecting to all the upstream and downstream facing ports. Naturally most cheap manufacturers just copy and past the reference design with the cheapest components possible.

      A spec isn't a bad spec just because it's not followed or enforced.

    3. Re:USB-C is a bad spec by Anonymous Coward · · Score: 0

      OK, let's try it this way then. It's a change without a difference.

      Maybe it's not the spec. However for the average consumer, do you really think they care what the failure mode is? No. They just know that it doesn't work and they are pissed off. It causes them to doubt USB and should they have enough problems, they start to doubt all of computing.

      Any system which allows/encourages/turns a blind eye to failure modes, is a poor system. Blame the consumer for buying cheap cables? This is worth considering, except there's a very old retail saying. "The Customer Is Always Right." I don't literally believe that, but do you know what I do believe? Customers should try to be frugal with their spending money, even as they try to get "good enough" quality.

      And you know what? There are too few signposts for casual consumers, to know when they've bought something that is too cheap. It's not about what you know, it's about what Joe/Jane Consumer knows. They aren't supposed to have to become some kind of computer experts, or talk to 6 people, or read online for 3 hours, just to buy a damn USB cable or a charger. These are casual purchases and the things should work. Reliably, the first time and every time, without muss nor fuss.

    4. Re:USB-C is a bad spec by Anonymous Coward · · Score: 0

      The idea of upstream and downstream ports was sound with A/B type connectors but with USB-C the plugs are identical so near every user will connect them wrong at some point. Fireworks ensured, but it's certainly good for the economy when you have to buy shit again and again courtesy of a braindead spec.

  27. Re:Love it. Love it. Love it. by Anonymous Coward · · Score: 0

    Citation needed. USB can route data in packets, and has enough bandwidth for multiple kinds of packets over one connection. You are saying it will never work, but it already works.

  28. DMA by bussdriver · · Score: 1

    USB 3 has DMA support doesn't it?
    Everything is getting DMA; HDMI and everything else will have it. All you'll be able to count on is enforced memory restrictions as far as device access. Which still leaves one open to devices messing with each other's DMA.

    Firewire has had restrictions for a long time now; depending on hardware and OS support-- I think for about a decade.

    The BIG concern should be the cheap hardware out there-- electrical USB-C problems and the crap connectors.... and the never ending list of new connectors which do almost the same thing we have to adapt etc. because somebody has to save a mm or a penny.

    1. Re: DMA by ewanm89 · · Score: 1

      No USB does not have DMA exposed to external devices, the USB host controller may use DMA as it is just another device on the PCI/PCI-Express bus, however it is not expose and queriable by devices. Yes, later in FireWire, some operating system drivers (Linux and Windows) would request the FireWire controller disable DMA support, but the hardware needs to be built to have this functionality. Finally such functionality would break thunderbolt as DMA is a fundamental part of how PCI-Express works and as a such key to the functionality. There is a feature for virtual machines to allow PCI-Express pass though called IOMMU that could also be used as DMA mitigation as it works by pretending to the device only a section of memory is the whole system memory, however, I believe only kernels built for use as hypervisor have it enabled and none are actually using it for DMA mitigation.

  29. Media player-to-converter box connection epic fail by Latent+Heat · · Score: 1

    I was in Fleet Farm (a Minnesota-based rural economy-oriented big-box store), and they had a DTV converter box that had a (ordinary) USB-3 input jack. They also sold a WiFi streaming multi-media player that output to HDMI (natch!).

    Well, that is an epic fail. If I bought the streaming player and the converter box, I could not hook them up.

    On the other hand, maybe those two devices are not meant to be purchased together. The converter box is for analog dinosaurs (me, my converter box with one of the dodgy electrolytic capacitors just failed, and it would be so, very, very, hard, for me to scare up a 25 V 330 uf 105 deg-C rated capacitor, take the box apart and not lose the screws or bust the snaps, warm up the soldering iron, and then go search for de-soldering copper braid.) The streaming player is for people with Internet who all have HDMI flat screens by now?

    But maybe analog dinosaurs are not expected to have Internet connections?

  30. Re:Love it. Love it. Love it. by blindseer · · Score: 2

    I don't know why I bother to reply to an AC but here is your citation:
    http://arstechnica.co.uk/gadge...
    Scroll down to the graphic where the pin out is shown.

    The USB-C alt modes define how the 4 high speed lanes on the port are used. In USB 3.1 mode they are used for 2 pair of RX/TX lanes. In a 2-lane DP mode there is one RX/TX pair of lanes for USB 3.1 and 2 lanes for DP. In 4-lane DP mode all 4 lanes are used for DP data. In Thunderbolt mode all the USB-C high speed lanes are dedicated to PCIe and DP packets, USB 3.1 packets will not share these lanes. I have not seen the spec on how MHL or HDMI use these lanes, I can only assume it is similar to DP mode. In whatever mode the USB-C connector is in there will always be a bidirectional pair of data wires for USB 2.0.

    The mode of the port will be defined by the first cable or device connected to it. Once in a certain mode it will stay there until every device is disconnected. Daisy chaining USB 3 and TB 3 devices will not be allowed. DP and TB devices can be daisy chained only if the DP devices are on the end of the chain. I assume daisy chaining USB and DP devices is allowed but then the USB devices would have to be at the end.

    I imagine it possible to make a cable that converts one USB-C mode to another but it would have to be insanely expensive, convert only one mode to another (and only in one direction), and still be confusing for many users. Even if someone makes one of these magic cables that USB-C port will go to whatever mode that the peripheral, cable, and host all support. This might be DP, MHL, HDMI, USB3, or TB3. It may even be just USB2.0 since that is where they all have a common denominator. The exception is that DP can share the cable with either USB3 or TB3 but again every piece in the chain has to support it, and there are other limits that go with that.

    I was torn with ignoring an AC that may just be trolling to helping to inform someone that was mistaken but was willing to learn. I hope I didn't choose poorly.

    --
    I am armed because I am free. I am free because I am armed.
  31. INFRINGEMENT! FIRE! FIRE FIRE! by Anonymous Coward · · Score: 0

    Perhaps it is time that the USB and HDMI consortium put some of those licensing fees to good use and started cracking down on sub-standard cable manufacturers. I'm quite sure that USB and HDMI are both registered trademarks. Since most of these sub-standard cables are being produced by unlicensed outfits, it should be easy to roust up the usual barrage of 3 letter organizations that act as the IP goon-squad.

  32. Re:Media player-to-converter box connection epic f by Dahamma · · Score: 1

    Yes, EXACTLY - you are not "most". You proved my point ten times over with your post (natch!).

    And I'd love to check out Fleet Farm.. Where I grew up it was called Rural King, so I can imagine it pretty well ;)