Radeon 9000 Pro corruption problem on PPC when DRI is enabled

[Ari Entlich]

On Fri, 2006-08-25 at 11:44 +0200, Michel Dänzer wrote: 
> On Fri, 2006-08-25 at 01:58 -0400, Ari Entlich wrote:
> > On Thu, 2006-08-24 at 12:39 +0200, Michel Dänzer wrote: 
> > > On Thu, 2006-08-24 at 03:12 -0400, Ari Entlich wrote:
> > > > On Thu, 2006-08-24 at 02:55 -0400, Ari Entlich wrote:
> > > > > On Wed, 2006-08-23 at 18:34 +0200, Michel Dänzer wrote: 
> > > > > > On Wed, 2006-08-23 at 02:24 -0400, Ari Entlich wrote:
> > > > > > 
> > > > > > and use Option "AccelDFS". If that doesn't help, you can try playing with the
> > > > > > "MigrationHeuristic" and "FBTexPercent" options, and if all of that
> > > > > > doesn't help, you could finally try the exa-damagetrack xserver git
> > > > > > branch.
> > > > > 
> > > > > Hmm... The only one of those options that my system understands is
> > > > > "FBTexPercent", 
> > > 
> > > You'll need xf86-video-ati git for AccelDFS, but MigrationHeuristic was
> > > already in xorg-server 1.1. How exactly did you try it?
> > 
> > Oh, sorry, since MigrationHeuristic isn't documented I assumed it wasn't
> > supported. I tried setting it to "always" and... Wow!!! It made a HUGE
> > difference! Opacity changes are WAY faster now. However, I'm now getting
> > some corruption... See
> > http://home.twcny.rr.com/fandaswebsite/decoration_corruption.jpg (it's
> > supposed to look like
> > http://home.twcny.rr.com/fandaswebsite/decoration_ok.jpg ). 
> 
> See https://bugs.freedesktop.org/show_bug.cgi?id=6811 .
> 
> > And here's some more: http://home.twcny.rr.com/fandaswebsite/more_corruption.jpg .
> 
> Not sure this is the same issue though. Is this with AccelDFS?
> 

Nope, it wasn't. However, since then I've upgraded to xf86-video-ati
6.6.2 and enabled AccelDFS, and the problem persists. Here's another
screenshot:
http://home.twcny.rr.com/fandaswebsite/yet_more_corruption.jpg . That
black stuff in the middle usually appears behind a window when it's
transparent (its darkness is proportional to the window's transparency),
but not always (it's not 100% reproducible). You can also sometimes see
it around the edges of a completely opaque window. It seams to happen
more as the session ages. I believe it normally corresponds to the
window's drop shadow, but that particular one in the middle of that
screenshot appears to have gotten stuck there...

Also, I applied the patch mentioned in
https://bugs.freedesktop.org/show_bug.cgi?id=6811 , which did indeed fix
the decoration corruption. As you can see, however, it didn't fix
anything else. 

Thanks,
 Ari