Bluetooth can be used for stereo audio, but currently only if you use a setup like the bluetake bt420 which comes with a little transmitter box.
I hear that MacOS is the first OS to have the bluetooth profile ("A2DP") necessary for stereo audio direct to the headset, but I haven't been able to get it to work with this headset. Currently the only advantage with using this headset over traditional wireless headsets is my phone can interrupt my music when a call comes in.
Oh, and we are working on linux bluetooth audio at this moment. It's a huge step to use A2DP so I can understand why it's slow to appear in more devices.
I was using t-mobile for unlimited data over gprs. It is cheap, but it's so slow its usefulness is borderline.
I finally switched to using bluetooth to my new verizon phone and it's working great...
at two to four time the data rate (and round trip pings take about 500ms instead of over a second)
Are you sure? The info at phonescoop shows the a780 is a GSM phone using EDGE for its high-speed data, not EV-DO. T-mobile may allow it (assuming they ever switch on Edge) and AT&T would likely allow it now (but apparently their Edge coverage stinks).
I have been watching for a bluetooth phone on verizon. I would like to use one for an internet connection while I ride public transit.
What I found is that no one really seems to know if this phone will support EV-DO for fast data. (I'm anticipating when it'll eventually be deployed in our market here in Salt Lake).
The pcmcia cards are hopeless in Linux since they need drivers. Anyway, it's nice to use bluetooth to a phone for internet so you don't have to worry about disconnecting an antenna or pulling out a pcmcia card when you want to stow the laptop. Plus it would work great with any bluetooth PDA.
I currently use an ngage on tmobile this way but the speed is abysmal.
I have a debian setup that is very handy for wifi networking. If I 'ifup ath0' (ath0 refers to the internal madwifi card) when I already have a default route (through eth0 or ppp/tmobile) then my startup script puts the madwifi card in master mode, tweaks WEP/SSID settings, starts up dhcp on the adapter, and runs debian's ipmasq util. My access point is up and flying at that point.
Maybe this is the kind of thing the windows drivers won't let you do with typical wifi cards but inside Linux I have enough control to pull it off.
My dad got a sidekick... the fact that it has no bluetooth wouldn't be a problem if you could just take the sim card out and put it in another device (like a bluetooth phone or an aircard) in order to get some of that unlimited data through to a laptop. To use the card in another device, T-mobile wants you to pay another $20/month to get what amounts to another flavor of unlimited data.
I have been using an ngage with T-mobile's unlimited data. It works fine as a wireless bluetooth modem to my linux laptop or even standalone for IM or basic email if I can be patient enough to type with a number pad.
Too bad there's not something that gives you a decent OS, thumb keyboard *and* bluetooth to a pc. Nokia has it almost right (flip-over keyboard, bluetooth) with the 6820 but it doesn't have Symbian 60 so it's not really extensible enough to benefit from addon programs...
The problem is that the company always had a "healthy" sense of competition between the US and Japanese offices. Since the PPC effort was done from the US office, they didn't do a whole lot with it in Japan.
When TurboLinux ran out of money, they sent all the US employees home and sold off the Japanese office. So the side here that actually did PPC stuff was dismantled.
I love how one start trek guy will hand his pda to another guy and say 'here's that report you asked for.'
So not only do they not have email, there's like one crewmember who's really bad at reading reports he's given... so his inbox is full of other peoples' pdas.
On an older mac, control-apple-powerkey is the reset sequence. It seems to be handled at a low level.
Each ADB device has an ID that can be examined when events come in. Several devices can coexist on one ID but you won't be able to distinguish where events come from. It's not a bad idea to repeatedly tell the device on the default port to move itself to another ID so you can see what else is using that ID.
I was trying to figure out how to disable the reset sequence under linuxppc when I noticed that if the ID of the keyboard was changed to something other than the default, the sequence would no longer reset the machine. So it's not really hardwired. You just have to hurry and change it from the default. (If someone unplugs and replugs in the keyboard, it will jump to the default again).
I'm annoyed by all the harping "the terrorists had valid visas." True, but that thinking is shortsighted.
Like it or not, a digital passport makes it much easier to track where people go over a long period. The information could be mined to find suspicious movements. Your valid visa terrorists might possibly have looked suspicious to a computer model somewhere before they were admited to the country. (Didn't they all "lose" their visas that showed visits to Afghanistan? I wonder if the digital visa would have made that loophole harder to use)
it is closed source and it's clear pretty quickly that lossy formats like jpeg don't work well--your brain tries to interpret the differing artifacts as depth information...
One way to get a stereoscopic 3d image is to use two projectors, both aimed to the same place on a silver (polarization-preserving) screen. Each projector has a polarizing filter in front of the lens. You send the left image to one and the right image to the other. The viewer has to wear glasses that have perpendicular polarizing filters so each image gets to the correct eye.
If you want to experiment with using two projectors do this, you will have much better success with DLP.
I played around with it and found that the light coming out of my LCD projectors was somewhat polarized. I worked out a way to put the perpendicular filters in place on my LCD projectors, but the light level was cut significantly by the filter. Any decrease in intensity is supposed to be unnoticable using DLP.
Maybe it doesn't matter though... it was such a pain keeping the images from the two projectors properly registered that I gave up on it after some experiments. Also, there's not much in the way of software that works out for 3D this way. I tried it using the two projectors logically connected using Xinerama and a Java applet that let me choose to show 3d images side by side. It was fun but if the images don't register well you'll quickly get a headache.
I have experimented with xine and mplayer and both of them have problems with motion artifacts. The bottom line is they don't observe the vertical blank period so the timing of frames matches up with the vertical scan of the viewer. If you project onto a large screen these artifacts really begin to be a drag.
I tried fbsync with xine, which is supposed to remove "cutting" artifacts in which a left/right pan results in the top half of the screen showing frame n and the bottom showing n+1. fbsync may reduce cutting but panning is still rough. I feel like I'm going to be seasick as a pan results in a wobbly feel. I'm not convinced it's better than cutting artifacts.
I tried mplayer with -double to do double buffering but I couldn't figure out how to sync with vertical blank. I tried vesa driver and xv drivers but still saw cutting.
I have my linux box plugged into an lcd projector. I want to use linux for it because I like having an open player that should integrate with stuff I do now (lirc remote) and want to do later (juke box, pvr). I am sticking with xine for now. I may try to set up one of the hardware mpeg2 decoders if the artifacts aren't addressed. I just hope, now that xine has dvdnav, that quality is the next big focus.
Butt-biting easter eggs is what my english teacher would call a "Mixed Metaphor" and destroys the rest of your argument as people are busy imagining what the little critters would look like and what measures could be taken to avoid getting bitten.
Are there phones out there that will accept a schedule for when to use the ringer? When I was taking classes I really wished for something that could accept my schedule and vibrate or just do nothing when calls came in while I was in class... it's too easy to forget to shut it off...
The "do nothing" option could even save power since it wouldn't need to keep pinging the tower.
Don't forget that if you put your laptop to sleep and it's stolen in that state that your encrypted filesystem may be left wide open.
Unmount encrypted filesystems before you sleep the laptop and put a password on your screensaver in case you get lazy. (don't count on a password-protected screensaver to protect you though -- maybe someone will create a screensaver that unmounts any encrypted fs and prompts for the access password...:)
If you were watching the linuxppc mailing lists when this project was young, you saw Samuel talking about emulating open firmware under linux. It sounded somewhat interesting but then *poof* he tells the world he can run macos. Pretty amazing. BenH apparently used mol a lot when trying to figure out how macs booted/initialized hardware so it's been a boon to pure linux on ppc too.
I wrote a mol faq a while back. Much of it still applies, but I've been waiting for the networking, sound, and kernel 2.4 compat to settle down before I redo it. (The prefered network config seemed to be changing almost on a daily basis for a while.)
Several people have said that it isn't an emulator and that it's very fast but one thing that slows it down is the lack of video accel. Notice when you boot under mol that the accel extension fails to find the graphics h/w it's after -- the video appears to macos to be an accel-incapable framebuffer.
How about if ISPs and antivirus outfits make an alliance? If ISPs got a cut whenever one of their users bought antivirus software, they'd be reporting the breakins to their users like nobody's business... then maybe we'd see some progress on the problem.
There is money in antivirus software. The bigger the media coverage, the more money it will generate. But it's the wrong end of the equation. Antivirus outfits will never get enough people to buy in to stop the problem of DDOSs.
The right place to fix this is by holding ISPs responsible for traffic from their networks with invalid addresses and making them investigate zombie reports and notify people when they've been compromised. (Spoofed addresses makes the latter impossible so we need to make sure we can find the zombies.) There's no money in this though. Could ISPs charge users when they become infected? No, but no ISP will commit resources when their competition isn't doing it. Usually the market will right itself but this is a situation that needs oversight before it will get better.
It is in principle great to have X so you can use different toolkits and do remote apps, but these aren't practical features for a PDA.
Multiple toolkits on a desktop are possible [and annoying] but on a small device they are a waste of resources and don't satisfy the more urgent need for consistent interfaces.
There is already plenty of fragmentation on PDAs especially if you ignore the presence of X.
vr3: fltk
pocketpc: java awt
familiar: whatever, but "salamander" sounds like it leans toward evas as a canvas (i wonder about the toolkit...)
intimate: whatever, but you currently need a microdrive so we're not talking about a PDA any more
Slashdot Mirror
I hear that MacOS is the first OS to have the bluetooth profile ("A2DP") necessary for stereo audio direct to the headset, but I haven't been able to get it to work with this headset. Currently the only advantage with using this headset over traditional wireless headsets is my phone can interrupt my music when a call comes in.
My critiques of this headset so far.
Oh, and we are working on linux bluetooth audio at this moment. It's a huge step to use A2DP so I can understand why it's slow to appear in more devices.
I finally switched to using bluetooth to my new verizon phone and it's working great... at two to four time the data rate (and round trip pings take about 500ms instead of over a second)
Are you sure? The info at phonescoop shows the a780 is a GSM phone using EDGE for its high-speed data, not EV-DO. T-mobile may allow it (assuming they ever switch on Edge) and AT&T would likely allow it now (but apparently their Edge coverage stinks).
I have been watching for a bluetooth phone on verizon. I would like to use one for an internet connection while I ride public transit.
What I found is that no one really seems to know if this phone will support EV-DO for fast data. (I'm anticipating when it'll eventually be deployed in our market here in Salt Lake).
The pcmcia cards are hopeless in Linux since they need drivers. Anyway, it's nice to use bluetooth to a phone for internet so you don't have to worry about disconnecting an antenna or pulling out a pcmcia card when you want to stow the laptop. Plus it would work great with any bluetooth PDA.
I currently use an ngage on tmobile this way but the speed is abysmal.
I have a debian setup that is very handy for wifi networking. If I 'ifup ath0' (ath0 refers to the internal madwifi card) when I already have a default route (through eth0 or ppp/tmobile) then my startup script puts the madwifi card in master mode, tweaks WEP/SSID settings, starts up dhcp on the adapter, and runs debian's ipmasq util. My access point is up and flying at that point.
Maybe this is the kind of thing the windows drivers won't let you do with typical wifi cards but inside Linux I have enough control to pull it off.
Brad
- Touchscreen
- More convenient use while standing
But the Nokia looks better for its- Support for Edge (faster data)
- More usable keyboard
- Large screen
If the P910 truly has no Edge support (I really can't find anything that says one way or the other), I wouldn't even consider it.My dad got a sidekick... the fact that it has no bluetooth wouldn't be a problem if you could just take the sim card out and put it in another device (like a bluetooth phone or an aircard) in order to get some of that unlimited data through to a laptop. To use the card in another device, T-mobile wants you to pay another $20/month to get what amounts to another flavor of unlimited data.
I have been using an ngage with T-mobile's unlimited data. It works fine as a wireless bluetooth modem to my linux laptop or even standalone for IM or basic email if I can be patient enough to type with a number pad.
Too bad there's not something that gives you a decent OS, thumb keyboard *and* bluetooth to a pc. Nokia has it almost right (flip-over keyboard, bluetooth) with the 6820 but it doesn't have Symbian 60 so it's not really extensible enough to benefit from addon programs...
I was the sole developer of TurboLinux/PPC.
The problem is that the company always had a "healthy" sense of competition between the US and Japanese offices. Since the PPC effort was done from the US office, they didn't do a whole lot with it in Japan.
When TurboLinux ran out of money, they sent all the US employees home and sold off the Japanese office. So the side here that actually did PPC stuff was dismantled.
I love how one start trek guy will hand his pda to another guy and say 'here's that report you asked for.'
So not only do they not have email, there's like one crewmember who's really bad at reading reports he's given... so his inbox is full of other peoples' pdas.
On an older mac, control-apple-powerkey is the reset sequence. It seems to be handled at a low level.
Each ADB device has an ID that can be examined when events come in. Several devices can coexist on one ID but you won't be able to distinguish where events come from. It's not a bad idea to repeatedly tell the device on the default port to move itself to another ID so you can see what else is using that ID.
I was trying to figure out how to disable the reset sequence under linuxppc when I noticed that if the ID of the keyboard was changed to something other than the default, the sequence would no longer reset the machine. So it's not really hardwired. You just have to hurry and change it from the default. (If someone unplugs and replugs in the keyboard, it will jump to the default again).
I'm annoyed by all the harping "the terrorists had valid visas." True, but that thinking is shortsighted.
Like it or not, a digital passport makes it much easier to track where people go over a long period. The information could be mined to find suspicious movements. Your valid visa terrorists might possibly have looked suspicious to a computer model somewhere before they were admited to the country. (Didn't they all "lose" their visas that showed visits to Afghanistan? I wonder if the digital visa would have made that loophole harder to use)
Until there are better vertical blank synchronization methods, anyone with an eye for detail will insist on a hardware decoder.
I see a lot of motion artifacts under every player, even after employing the syncfb module on a matrox.
stereophoto
it is closed source and it's clear pretty quickly that lossy formats like jpeg don't work well--your brain tries to interpret the differing artifacts as depth information...
One way to get a stereoscopic 3d image is to use two projectors, both aimed to the same place on a silver (polarization-preserving) screen. Each projector has a polarizing filter in front of the lens. You send the left image to one and the right image to the other. The viewer has to wear glasses that have perpendicular polarizing filters so each image gets to the correct eye.
If you want to experiment with using two projectors do this, you will have much better success with DLP.
I played around with it and found that the light coming out of my LCD projectors was somewhat polarized. I worked out a way to put the perpendicular filters in place on my LCD projectors, but the light level was cut significantly by the filter. Any decrease in intensity is supposed to be unnoticable using DLP.
Maybe it doesn't matter though... it was such a pain keeping the images from the two projectors properly registered that I gave up on it after some experiments. Also, there's not much in the way of software that works out for 3D this way. I tried it using the two projectors logically connected using Xinerama and a Java applet that let me choose to show 3d images side by side. It was fun but if the images don't register well you'll quickly get a headache.
I have experimented with xine and mplayer and both of them have problems with motion artifacts. The bottom line is they don't observe the vertical blank period so the timing of frames matches up with the vertical scan of the viewer. If you project onto a large screen these artifacts really begin to be a drag.
I tried fbsync with xine, which is supposed to remove "cutting" artifacts in which a left/right pan results in the top half of the screen showing frame n and the bottom showing n+1. fbsync may reduce cutting but panning is still rough. I feel like I'm going to be seasick as a pan results in a wobbly feel. I'm not convinced it's better than cutting artifacts.
I tried mplayer with -double to do double buffering but I couldn't figure out how to sync with vertical blank. I tried vesa driver and xv drivers but still saw cutting.
I have my linux box plugged into an lcd projector. I want to use linux for it because I like having an open player that should integrate with stuff I do now (lirc remote) and want to do later (juke box, pvr). I am sticking with xine for now. I may try to set up one of the hardware mpeg2 decoders if the artifacts aren't addressed. I just hope, now that xine has dvdnav, that quality is the next big focus.
Butt-biting easter eggs is what my english teacher would call a "Mixed Metaphor" and destroys the rest of your argument as people are busy imagining what the little critters would look like and what measures could be taken to avoid getting bitten.
Are there phones out there that will accept a schedule for when to use the ringer? When I was taking classes I really wished for something that could accept my schedule and vibrate or just do nothing when calls came in while I was in class... it's too easy to forget to shut it off...
The "do nothing" option could even save power since it wouldn't need to keep pinging the tower.
Don't forget that if you put your laptop to sleep and it's stolen in that state that your encrypted filesystem may be left wide open.
:)
Unmount encrypted filesystems before you sleep the laptop and put a password on your screensaver in case you get lazy. (don't count on a password-protected screensaver to protect you though -- maybe someone will create a screensaver that unmounts any encrypted fs and prompts for the access password...
duh. sure it is rallying too.
I wrote a mol faq a while back. Much of it still applies, but I've been waiting for the networking, sound, and kernel 2.4 compat to settle down before I redo it. (The prefered network config seemed to be changing almost on a daily basis for a while.)
Several people have said that it isn't an emulator and that it's very fast but one thing that slows it down is the lack of video accel. Notice when you boot under mol that the accel extension fails to find the graphics h/w it's after -- the video appears to macos to be an accel-incapable framebuffer.
How about if ISPs and antivirus outfits make an alliance? If ISPs got a cut whenever one of their users bought antivirus software, they'd be reporting the breakins to their users like nobody's business... then maybe we'd see some progress on the problem.
There is money in antivirus software. The bigger the media coverage, the more money it will generate. But it's the wrong end of the equation. Antivirus outfits will never get enough people to buy in to stop the problem of DDOSs.
The right place to fix this is by holding ISPs responsible for traffic from their networks with invalid addresses and making them investigate zombie reports and notify people when they've been compromised. (Spoofed addresses makes the latter impossible so we need to make sure we can find the zombies.) There's no money in this though. Could ISPs charge users when they become infected? No, but no ISP will commit resources when their competition isn't doing it. Usually the market will right itself but this is a situation that needs oversight before it will get better.
i like how in the future [as portrayed in star trek] everyone is so generous.
they're always saying stuff like "here's that report you wanted!" but instead of emailing it, the guy hands over his pda.
although... maybe it's a subtle way of saying "i'm not going to do any more work until you read this and give it back to me."
*Please* choose a Bahama-$20-a-second outfit that does not itself do bulk email. Maybe there aren't any... :)
It is in principle great to have X so you can use different toolkits and do remote apps, but these aren't practical features for a PDA.
Multiple toolkits on a desktop are possible [and annoying] but on a small device they are a waste of resources and don't satisfy the more urgent need for consistent interfaces.
There is already plenty of fragmentation on PDAs especially if you ignore the presence of X.
vr3: fltk
pocketpc: java awt
familiar: whatever, but "salamander" sounds like it leans toward evas as a canvas (i wonder about the toolkit...)
intimate: whatever, but you currently need a microdrive so we're not talking about a PDA any more
brad