[Bug 34313] RV770 lock-up with OpenGL

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=34313

--- Comment #21 from Bob Ham <rah at bash.sh> 2011-05-22 10:01:32 PDT ---
(In reply to comment #20)
> Does:
> Option "EnablePageFlip" "False"
> in the device section of your xorg.conf fix the issues?

Yes and no.  I believe there are at least three distinct problems causing
lockups.  Firstly, this immediate lockup caused by page flipping (it happens
very quickly with GL programs.)  Secondly, is a lockup from some other cause
that takes longer to show itself but inevitably does.  Lastly is a more serious
lockup that is not detected by the kernel driver and causes a hard lock.  This
last lockup is rarer still than the second.

The first immediate lockup seems to be remedied by disabling page flipping. 
The second (and I presume third) is still present, however.  It only takes 5-15
minutes of playing nexuiz for the second type of lockup to assert itself. 
Compare this with 0-60 second for the first, page flipping lockup.

So yes, disabling page flipping solves one lockup but there are still others
that it doesn't solve.  I will try to do more testing using warzone 2100
instead of nexuiz to see if I can find the cause of the second lockup.

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