I should note that currently I’m unable to bring up X entirely with the intel driver. Too bad I didn’t make a note of which upgrade this started with. With intel it now just freezes when login screen should appear, with just the cursor showing on a purple background. It’s such a tough lockup that REISUB from the keyboard won’t work, I have to power off to reset. Comparing logs might help determine if it’s the same issue on a grand scale or an unrelated one, but I don’t know how (or if) I can get useful logs from such lockups.
@David: I have this bug but only with HDMI output from my gfx adapter. #23 works here, so as per your #30 I’m about to file a separate bug, but would the driver at fault in this case be for the underlying (Intel) sound card or for the (Radeon) display adapter? Audio coming through analog (headphones) never crackles.
I downgraded libdrm-intel1 to 2.4.26-1ubuntu1 from Oneiric, but the problem remains. So on Precise it doesn’t seem to be the cause. (I’m not using the Xorg-edgers PPA.)
Here’s i915_error_state as requested on https://wiki.ubuntu.com/X/Troubleshooting/Freeze#. I made a copy (using cp), and I should mention that my first try to do so resulted in an error message: ”failed to extend” … and something about not having enough memory, in Finnish. When I preceded the command with LC_ALL=C to get the entire error message in English, the copying was suddenly successful. I hope this doesn’t mean the actual error state from the hang had been replaced by a new state which I’m now submitting.
Happens consistently when playing video using VLC (other players also), after about 5 minutes. Rockman 2 speedrun from tasvideos.org is pretty reliable for reproducing this. :)
The video goes blank (blue) and can no longer be seen until after reboot, though the playing does resume.
Bug #896899 looks similar on the surface, but I’ve little understanding of these types of crashes so I felt it best to report separately.
After switching to fbdev driver the crash can no longer be reproduced.
I think the bug manifests itself differently depending on the underlying graphics hardware: I’ve heard a report about the colors being wrong on an Intel platform, whereas on my Radeon trying to play YouTube videos since Friday resulted in my LCD going to power saving mode and not waking up anymore.
Disabling hardware acceleration solved both issues.