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Apple's Newest Macs Seem To Have a Serious Audio Bug (thurrott.com)

An anonymous reader writes: Apple's new Mac products might have a serious audio glitch for professional users. The company's newest Mac products with its T2 security chip suffer from a software-related bug that leads to issues with audio performance. The issue seemingly affects devices with the T2 chip -- that includes the iMac Pro, Mac Mini 2018, MacBook Air 2018, and MacBook Pro 2018. Although Apple's T2 chip is designed to offer improved security, it's affecting users in the pro audio industry.

As CDM reports, there is a bug in macOS that leads to dropouts and glitches in audio whenever a Mac automatically updates its system clock through the system time daemon. Users have been reporting the issue across a bunch of different pro audio forums for months, and it seems like the issue has never been acknowledged by Cupertino. The issue here is pretty simple to understand, as explained by a DJ software developer on Reddit: whenever the system time daemon automatically updates the system time, it somehow sends a 'pause-audio-engine' message to the kernel, leading to dropouts and glitches in audio.

13 of 144 comments (clear)

  1. The T2 stuff is why I won't buy another Mac... by ctilsie242 · · Score: 2

    Because the T2 chip blocks access to the internal SSD when the security level is set to off, making it impractical to install Linux or another OS when Apple starts supporting that laptop, that is a deal killer for me

    Disclaimer: I could be wrong, but I've not found anything that states one can both turn security off, and install Linux on the internal SSD on a T2 equipped Mac. You can turn security off and use external flash drive media, but the internal drive is inaccessible. It would be nice if Apple allowed the SSD to work, and provided support for Microsoft compliant shims, so one could have Secure UEFI boot to RedHat, Ubuntu, or other operating systems and have some faith that the kernel hasn't been tampered with.

    Between this, and the other Mac issues (keyboard, audio), looks like my next MacBook Pro may be a Dell Latitude model, which in some ways is a better MBP than a MBP, if only because it supports USB-C, and USB-A without needing a dock or dongles.

    1. Re:The T2 stuff is why I won't buy another Mac... by kb7oeb · · Score: 2

      My understanding is the problem is there is no linux driver for the apple SSD. https://bugzilla.kernel.org/sh...

    2. Re:The T2 stuff is why I won't buy another Mac... by CastrTroy · · Score: 2

      Simply having the storage soldered to the board is too much of a problem for me. M.2 drives don't take up that much space, and are a much better solution to soldering the storage directly to the board. Even if you plan to never use anything other than MacOS, having the storage soldered to the board is a completely ridiculous idea with no other reason than to prevent people from upgrading/fixing the machine by themselves in the future.

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    3. Re:The T2 stuff is why I won't buy another Mac... by jwhyche · · Score: 2

      My understanding is the problem is there is no linux driver for the apple SSD. https://bugzilla.kernel.org/sh...

      Why would you buy over priced apple hardware just to install linux on it? There are any number of ryzen, or even intel, based laptops for half the price with better or greater performance. An these laptops tend to be a lot more penguin friendly. No weird apple shit to deal with.

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    4. Re:The T2 stuff is why I won't buy another Mac... by jwhyche · · Score: 2

      Retina screens.

      Has nothing to do with anything. Retina is just a buzz word for good display. My samsung 28" UHD has just as good color contrast as any thing apple put out. My 3+ year old Asus android tablet has a beautiful display. I have had iphone owners look at the amoled display on my Galaxy S8 and tell me they wished their iPhone looked that good.

      Retina display is nothing more than market hype.

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  2. Re:How come by thevirtualcat · · Score: 3, Insightful

    Remember Dell's "It just works." and "Dell vs the rest of the PC industry" ad campaigns?

    Oh, wait. That was Apple.

    It's the same reason you don't generally see car companies doing ad campaigns around their competitor's recall mishaps. They all know "there but for the grace go I." Apple had to learn that lesson the hard way. A decade later and they're still living down that hubris.

  3. difference by supernova87a · · Score: 3, Insightful

    All systems have bugs. The difference with Apple is that generally, the bugs get fixed and the hardware gets supported. As much as you hate their prices and controlled environment, can you say the same of other hardware manufacturers?

    1. Re:difference by Anubis+IV · · Score: 2

      Sounds like your business had a service agreement with Dell and didn't have one with Apple, so that's a bit of an apples-to-oranges comparison and on a wholly unrelated topic from the subject of whether bugs get fixed, which was what the OP was talking about.

    2. Re:difference by jwhyche · · Score: 2

      We did. I was the one that set up the service agreement with them. Apple didn't have such agreement or didn't want to make one with us. Which is probably why there are far more Dell in the work place than Apples. Which is pretty stupid for Apple.

      So I find that Dell equipment is just as reliable as Apple, if not more. There are more Dell failures in the field simply because there are 10 Dells for every Apple. Give or take. Dell more than makes up for these failures by having a fair superior service system than Apple. I've never seen a apple "genius" leave the bar but I have talked to a number of dell technicians on site.

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  4. Are you sure about that? by SuperKendall · · Score: 4, Informative

    Because the T2 chip blocks access to the internal SSD when the security level is set to off,

    I thought you could disable secure boot on the Mac, which should let you install any OS you like on the internal SSD...

    I fully admit I've not tried that though so it could be there's some other aspect to that I did not know about. But this article sure makes it look like that setting has the effect of letting you boot into Linux on a T2 Mac.

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
  5. Re:How come by lgw · · Score: 4, Funny

    Easy fix: remove the headphone jack. Users will stop complaining about audio quality; problem solved!

    --
    Socialism: a lie told by totalitarians and believed by fools.
  6. Dell vs Apple by sjbe · · Score: 3, Interesting

    Because Dell doesn't talk shit like "you're holding it wrong"

    No instead they have Michael Dell saying shit about Apple like "I'd shut it down and give the money back to the shareholders" which turned out to be remarkably arrogant and increasingly foolish since he said it.

    and because Dell hasn't tried to build a reputation as making computers which are easier to use than everyone else's.

    Because they couldn't. Dell doesn't make the software that runs their PCs so they don't control enough of the process to even try. Apple more or less succeeded in doing that exact thing. Several times in fact with various iterations of MacOS and iOS. There is a reason Windows mimicked the Mac and Android followed the iPhone. Like them or hate them you cannot deny that Apple does do a good job making comparatively well designed and easy to use interfaces to their products. There is a reason every other PC and smartphone maker follows Apple's lead at least some of the time.

    Also, because Dell seems to have less gigantic fuckups than Apple, per unit shipped.

    Not historically they haven't. Dell's hardware is fine in general but they've had plenty of problems over the years. Measurably more than Apple most years if you believe the PC reliability rankings over the years. I'm not bashing Dell here (in fact I'm typing this on one of their PCs which I purchased with my own money) but let's not pretend they are something special among big computer makers.

  7. Re:How come by jwhyche · · Score: 2

    I have to agree. I've been using dell for personal and professional equipment for more than a decade. I've never had any problems with dell support. On the professional side, shit just works, and when it doesn't they send someone out to make it work. Personal, I've had to send back a laptop for service. It was "yes sir, we'll get this fixed for you" and that was it. It was fixed and back in my hands in a week.

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