[ubuntu-x] Some intel bugs

[Martin Olsson]

Just to be clear, bugs 2 and 3 are EXA (and UXA) bugs.


		Martin




Bryce Harrington wrote:
> Thanks, you would be encouraged to go ahead and forward these upstream.
> We've decided to stick with EXA for Jaunty since UXA seems to have so
> many bugs like these.  Even if the performance stinks for some people
> (seems acceptable on my hardware though), it's better to have the
> stability.
> 
> Bryce
> 
> On Tue, Feb 17, 2009 at 01:04:14PM +0100, Martin Olsson wrote:
>> Here are three pretty interesting (and I think _reproducible_) intel bugs I've found the last few days.
>> Since they all have repro steps, it would be nice to see if they appear on your machines if you have intel.
>> If someone is working on the poor intel EXA perf please keep doing that instead though, heh. :-)
>>
>> Especially for the first bug (the jaunty+UXA hang) I'm very interested what's in dmesg on 965 when
>> that bug triggers (I have 965 on live CD only and ssh stops responding on repro so the only way to
>> get this info would be to have jaunty installed and then grep the old dmesg log at the next boot.
>>
>>
>> BUGS:
>>
>> UXA+jaunty xorg hang when clicking JPG file (I can repro this on G45 and 965):
>> https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/330460
>>
>> [965 only] rendering glitches in various 3D apps (repros on intrepid+jaunty):
>> https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/330476
>> (I've linked a thread where Eric Anholt is discussing a patch-in-progress for this.
>> Might be a candidate for ubuntu sauce + intrepid backporting if intel commits a patch soon)
>>
>> [G45 only] jaunty UXA/EXA xorg hangs when running hyperspace screensaver (no repro on 965 machine):
>> https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/330240
>>
>>
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