Please try if you get the lockup with this mainline kernel package: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2-precise/
for Jon it's http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2-precise/linux-image-3.2.0-030200-generic_3.2.0-030200.201201042035_amd64.deb ** Package changed: libdrm (Ubuntu) => xserver-xorg-video-ati (Ubuntu) ** Changed in: xserver-xorg-video-ati (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/875073 Title: GPU lockups in the radeon driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/875073/+subscriptions _______________________________________________ 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
