Exa and radeon

[Francesco Biscani]

On Thursday 20 April 2006 18:27, you wrote:
> On Tue, 2006-04-18 at 15:46 +0200, Francesco Biscani wrote:
> > On Monday 17 April 2006 22:36, Dario Laera wrote:
> > > Hi all,
> > >
> > > after I've installed xorg-server-7.1_RC1 I've tried to run xcompmgr -a
> > > with exa to see if some things were improved since 7.0, but I still get
> > > strange result:
> > >
> > > http://laera.web.cs.unibo.it/exa.png
> > >
> > > I have a mobility 9600 running on a powerbook.
> > >
> > > Thanks, Dario.
> >
> > (I'm CC'ing Eric Anholt, since he's the man for exa)
> >
> > Hi,
> >
> > from what I gather following CVS logs you should add an extra option to
> > xorg.conf to enjoy the improved exa support in latest xorg:
> >
> > Option      "MigrationHeuristic" "always"
>
> This is definitely not recommended.  It's just for debugging.  That's
> why it's undocumented.
>
> > So, (that's a question for Eric ;) am I doing something wrong? Can I help
> > in debugging this?
>
> This is probably just driver brokenness.  We're exercising the driver in
> more ways than before, and I think radeon has issues.

Hi Eric,

sorry to bother you again; I just wanted to report that with latest CVS (the 
one that has "smart" as default migration heuristic) I get the same simptoms 
as with the "always" migration heuristic (which I talked to you about in a 
previous mail). I.e., corruption in window titles and slowness in drawing the 
desktop background in KDE. However, once the background is rendered, moving 
windows around is _really_ snappy and transparencies work very well :)

As always, if needed I'm willing to test patches and provide feedback.

Thanks,

  Francesco

-- 
Dr. Francesco Biscani
Dipartimento di Astronomia
Università di Padova
biscani at pd.astro.it