http://bugs.freedesktop.org/show_bug.cgi?id=22017





--- Comment #8 from Phil Armstrong <p...@kantaka.co.uk>  2009-06-06 15:50:25 
PST ---
(In reply to comment #7)
> (In reply to comment #6)
> > I can probably git bisect between the 7 release and 7.4 to see where the bug
> > was introduced. Might take a while though.
> 
> Ugh. There's something weird going on: A stock Debian Lenny install had the
> correct colours for glxgears, but I've dragged in a bunch of stuff from
> unstable so I could use the latest radeon driver & now even the stock Lenny
> mesa (mesa 7.0.3 / libdrm 2.3.1) gets the colours messed up. I'll see if I can
> downgrade everything to confirm the above.
> 

OK. Mesa git HEAD works just fine with xorg version 7.3 (with libdrm 2.4.9)
which probably explains why this bug hasn't been reported before.

Guess: the latest radeon driver in Xorg release 7.4 is setting a register (byte
ordering?) somewhere that mesa doesn't know about, or has assumed is set to
something else.

bisecting the radeon driver may be tricky though: IIRC it has a dependency on
the new X server.


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