Does this behavior always occur if you are away from it for about 2 hours or just sometimes or just with certain programs?
Also, are you running beryl or compiz or any games that take over the xserver and fill up the entire screen? -- cpu load at 100 % after inactivity https://launchpad.net/bugs/91776 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
