Upgrade to 8.04 and now Xgl is using 95% of CPU

[NoOp]

On 10/24/2008 10:01 AM, stan wrote:
> I just upgraded my laptop to 8.04, in preparation for going to 8.10, and
> noticed it became very slow. I ran top and discovered that Xgl is now using
> over 90%  of the cpu with virtually nothing going on, other than being logged
> into a X (KDE) session). The Xorg startup log identifies the card as:
> 
> (--) PCI:*(1:5:0) ATI Technologies Inc RS485 [Radeon Xpress 1100 IGP] rev 0
> 
> And I am using the closed source graphics driver.
> 
> What should I check next to try to resolve this issue?
> 

sudo apt-get install xserver-xorg-video-ati
sudo apt-get remove xserver-xgl

I run a Radon Mobility 7500 on my T30 laptop & after blowing out -xgl,
installing the standard -ati drivers (no fglx either), and modifing my
xorg.conf slightly, it now zips right along (well I won't call 772 FPS
in glxgears blazing... but) & runs all the Compiz bells & whistles.

This might also be of interest/help:
https://wiki.ubuntu.com/X/RadeonXpress