Comment 41 for bug 309776

This comment is for those novise like me who mainly want a working system and are not primarilly looking to fix the bug.

I had the described problem after upgrading from Intrepid to Jaunty a couple of weeks ago. Xorg always over 30% CPU and often over 80%, even though I wasn't doing anything.

Running Dell Latitude E6400, 4 gig memory etc. I did try to kill power-manager and settings-daemon without any result. No vino-server running.

The behavior disappeared when I downgraded all xserver-xorg-<whatever> packages back to the Intrepid version, and now the system is faster than ever:-)

Since you who will go for this solution probably are as novice as me I will outline just how I did the downgrade (which might not be the standard way, I don't know).

edit the file /etc/apt/sourses.list (for instance sudo vim /etc/apt/sourses.list)
Comment out all lines including the word 'jaunty' (put # in front of the line)
#deb http://fr.archive.ubuntu.com/ubuntu/ jaunty main multiverse universe restricted
#deb-src http://fr.archive.ubuntu.com/ubuntu/ jaunty main multiverse universe restricted
#deb http://fr.archive.ubuntu.com/ubuntu/ jaunty-updates main multiverse universe restricted
#deb-src http://fr.archive.ubuntu.com/ubuntu/ jaunty-updates main multiverse universe restricted

add the following line (probably overkill with multiverse universe etc., I don't know)
deb http://fr.archive.ubuntu.com/ubuntu/ intrepid main multiverse universe restricted

save the file and do
sudo apt-get update

run aptitude (or your favourite package manager) and downgrade the following packages, including their dependencies (in my case 34 dependencies):
xserver-xorg
xserver-xorg-core
xserver-xorg-input-all
xserver-xorg-video-all

remember to uncomment the sources.list file and run 'sudo apt-get update' to reset jaunty repositories (and do not update xserver packages as suggested).