Public bug reported:
Binary package hint: linux-source-2.6.20
All Feisty needs to support 3D on Intel g965 hardware without frequent
crashes or lockups is to use a newer version of the kernel drm drivers.
It has i915 drm 1.6.0, but libdrm from git is currently at 1.9.0.
Running feisty's AMD64 2.6.20-14-generic, and with X started in an AMD64
feisty chroot, some openGL programs can trigger a bug, and get a message like:
Apr 8 03:34:25 tesla kernel: [133430.971457] [drm:i915_wait_irq] *ERROR*
i915_wait_irq: EBUSY -- rec: 16309404 emitted: 16312306
And the X server exits, leaving the image on screen unchanged. re-
starting X fails, because the hardware is confused. (A reboot, or at
least a suspend/resume to re-POST the video is needed.)
How frequently this happens depends on the program. Some games seem to
trigger this within 15 minutes to an hour. Others not at all. I think
it depends on what graphics effects are enabled, too. Anyway, currently
feisty on g965 hardware will, I think, give the average gamer crashes on
the order of once in an hour of gameplay.
Using kernel-side drm modules compiled from the latest git makes
Feisty's mesa work great. (i915 version 1.9.0). I played nexuiz for >
8 hours on it :) With Feisty's kernel drm modules, nexuiz sometimes
made the video lock up, as above. So as I said, kernel drm modules are
the only thing holding Feisty back from working fairly solidly out of
the box on g965 hardware. (2D support is ok already).
It might not be necessary to go all the way to 1.9.0. I've been
compiling the latest drm and mesa on edgy for months now, with quite
good results.
** Affects: linux-source-2.6.20 (Ubuntu)
Importance: Undecided
Status: Unconfirmed
--
drm lockups on g965 hardware
https://bugs.launchpad.net/bugs/104673
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