Can you please test either Ubuntu 13.10 "Saucy Salamander" with the radeon.dpm=1 boot parameter or Ubuntu "14.04" Trusty Tahr" and let us know if the overheating is fixed?
** Changed in: gnome-power-manager (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/864660 Title: computer over heat,and auto restart after 11.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/864660/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs