EXA rendering bug (on R300)

[Alex Deucher]

On 3/27/09, Andrej Krutak <andree at andree.sk> wrote:
> Hello,
>
>
>
> I've recently filled a bug report at kde's bugzilla -
> https://bugs.kde.org/show_bug.cgi?id=187775 . Today I've
> found out that the problem really is most probably caused by the radeon
> driver I use.
>
>
>
> I've installed ubuntu jaunty (upgraded from hardy+recent radeon build), and
> this is more-or-less the last problem I have to fix to get a (more-or-less)
> bugfree desktop :)
>
>
>
> I have discovered that when using EXA (doesn't matter, if KDE's composite
> manager is on or off), some widgets' backgrounds aren't properly cleared.
> Using XAA (again, with composite on or off) there are no problems at all.
> Well, there is one - composite+XAA is just too slow to be used, so I'm in
> stoneage (=without composite stuff) right now :)
>
>
>
> Could some of you guys help me to find the problem? I guess I could compile
> the radeon driver by myself, if it was needed - and probably also fix some
> code (as I'm programmer myself, although I never fixed a device driver :-)),
> if I received some hints where I should look for the possible problem
> spots...
>
>
>
> Oh, the problem probably only occurs with qt apps (using qt4.5 now), didn't
> see it in gimp nor firefox (which are probably all gtk apps I use :) ).

Are you using the most recent version of the driver (6.12.1)?  File a
bug (https://bugs.freedesktop.org) and attach your xorg log, config,
and a picture of the problem.

Alex