ubuntu-x-swat team mailing list archive

[sly <poubelle@xxxxxxxxxxx>]

Just to add informations :
This problem was present in karmic, upgrading to lucid didn't change anything and I tried to manually compile the last stable radeon drivers (xf86-video-ati-6.13.0) and it still doesn't solve the problem.

So, at least for my board : 
$ sudo lspci | grep VGA
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]

with no xorg config file (wich means using EXA acceleration) and using a
poor performance CPU, Xorg operations are sluggish, CPU usage is high
(sometimes stucked at 100%).

I've tried all proposed solutions presented here, disabled all possible "bling bling" effects in gnome/kde and hardly got a few spare CPU cycles. 
I'm unable to switch to XAA for a test has it seams to be disabled in recent drivers (log files show it doesn't care about my Option "AccelMethod" "XAA" and still talks about using EXA) 
I'll have a try at finding an old driver version if XAA is still able to be activated with recent xorg version

Funny note for the end : It is so sluggish with EXA "acceleration", that I choose to just disable acceleration 
(Option "NoAccel" "Yes")
This gives me better 2D performances, with the drawback of disabling OpenGL wich I need to renable with 2 xorg.conf files whether I want GL or not.
Maybe I'll have a try with the vesa driver ? :-)

-- 
[RV100] very poor Xorg performance on various older graphics HW - XAA no longer works
https://bugs.launchpad.net/bugs/363238
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which is the registrant for xserver-xorg-driver-ati.