Everything is back to normal after deleting the following file (found that tip 
on a newsgroup)
sudo rm /etc/X11/Xsession.d/00xserver-xgl_start-server

So it seems that xgl, or at least the upgrade of it is to blame.

-- 
[gutsy] xserver sluggish after upgrade 
https://bugs.launchpad.net/bugs/136982
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to