I have fixed this problem for me. Dell Optiplex GX-150 1gz, 512mb ram, Intel I815 graphics card. Ubuntu 9.04
I did a gksudo gedit /etc/X11/xorg.conf
added to the Device: section
Option "DRI" "off"
and save
This is the only way i found fixes the problem, and yes if i take that out of the Xorg.conf then X will freeze and then the mouse freezes up.
I have fixed this problem for me. Dell Optiplex GX-150 1gz, 512mb ram, Intel I815 graphics card. Ubuntu 9.04
I did a gksudo gedit /etc/X11/xorg.conf
added to the Device: section
Option "DRI" "off"
and save
This is the only way i found fixes the problem, and yes if i take that out of the Xorg.conf then X will freeze and then the mouse freezes up.