Oh, given how many people have 'me-too'd on this bug, it feels like a regression that maybe occurred pretty recently. Check your /var/log/dpkg.log to see what packages were changed. I don't think there were any notable changes in X around the end of Sept when this was first reported, so that again makes me suspect this is actually not an X bug.
** Changed in: xorg-server (Ubuntu Karmic) Status: Confirmed => Incomplete -- [karmic] Xorg 100% CPU utilization -- only after first login https://bugs.launchpad.net/bugs/439138 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp