Xorg 7.0-rc1 and EXA (radeon 9200)

[Michel Dänzer]

On Sun, 2005-10-23 at 10:06 +0000, morgoth6 at box43.pl wrote:
> 
> > Hmmm, what can cause so huge slowdown here then ? I gues the Radeon 9000 
> > is not so slow, I have complete RC1 emerge here with this additional cvs 
> > fix for EXA. But still moving a gnome terminal for example lockups the 
> > mouse pointer for for a second.
> 
> Funny to answering to my own email :) Anyway I did a small investigation in 
> this topic and it seems the slowdown can be observed only in Gnome. Normaly 
> I use Gnome 2.12.1 with gtk+ 2.8.6. Today I try to run KDE 3.4.3 and it 
> seems it works normaly I mean faster than with XAA. Is there any known 
> issue with gtk+ or Gnome itself ?

No, GNOME is usually snappy here, running xcompmgr -a.

> Also there is some desktop corruptions with KDE on my system. The 
> mousepointer sometimes left some gfx trashes on the desktop. Also when I 
> enable a 'Bouncing Cursors' in KDE preferences I can observe the same 
> corruptions.

Sounds like SW cursor is being used instead of HW cursor. There's a
known issue where the radeon driver with EXA sometimes (in particular
after a VT switch) drops back from HW cursor to SW cursor, without any
sign of it in the log file.


-- 
Earthling Michel Dänzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer