[Bug 37781] Major redraw/flicker issues on rv350 after exiting fullscreen app with compiz running

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=37781

--- Comment #2 from Michel Dänzer <michel at daenzer.net> 2011-05-31 02:34:43 PDT ---
(In reply to comment #2)
> With default packages in ubuntu natty 11.04, there is a problem where running
> and exiting a fullscreen application with compiz running causes major
> redraw/refresh flickering issues. They go away after restarting compiz, but
> start again reliably after exiting any fullscreen GL app.

Sounds like bug 35452.


> Here are the bisect results:
> 
> 2a95568f64a6641a49a2d4855272e9be2ac2db6d is the first bad commit
> commit 2a95568f64a6641a49a2d4855272e9be2ac2db6d
> Author: Kenneth Graunke <kenneth at whitecape.org>
> Date:   Wed May 11 07:54:57 2011 -0700
> 
>     i965: Avoid register coalescing away MATH workarounds on Ivybridge.

As Dave Airlie pointed out on IRC, that commit can't possibly have any effect
on r300g.


> As a side note, the problem is actually worse in mesa current master, where it
> does not require triggering, but instead is flickering right after X/compiz
> start the first time.

Sounds like a different problem. Try current Git again first, there have been
some fixes for intermittent Gallium texture format related regressions.

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