On Mon, 30 Sep 2013, Daniel Bischof wrote:
On Sun, 29 Sep 2013, Daniel Bischof wrote:
I'm frequently updating Xorg for my oS 12.3
and my kernel from the respective kernel repo.
I got GPU resets occasionally, but since the most recent updates, all "3D
applications" (such as Steam, etc.) are unusable due to frequent resets
. Actually I had to restart the whole machine most of the time. [...]
I investigated this further:
- updated to most recent Xorg repo updates from today: No change
- downgraded to 12.3 kernel (3.7.10-1.16-desktop), kept stuff from Xorg repo:
GPU resets almost vanished, but occasional lags and 3D performance poor
- installed latest AMD Catalyst proprietary driver: no more resets, no lags
and great 3D performance (so my card appears to be ok)
I was kind of rejoicing that the Radeon OSS driver finally made a 3D
performance jump, but apparently we're not quite there yet. Is there
something I could help with (test packages, provide information, ...)?
I could finally resolve this: Booting with "radeon.dpm=1" does the trick.
No further settings in /sys/class/drm/card0/device or something else, just
the boot option.
The effect is reproducible: Watching the WebGL fish tank  causes GPU
resets after a couple of seconds. After having rebooted with DPM enabled,
it works like a charm (and my other OpenGL stuff, too).
Daniel Bischof <suse-bugz(a)bischof.org>
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