Can you please try booting with radeon.new_pll=0 added to the kernel command line in grub to see if the issue still exists with that option?
** Changed in: xserver-xorg-video-ati (Ubuntu) Status: Confirmed => Incomplete -- [RV515] Screen is shaking few minutes after boot https://bugs.launchpad.net/bugs/543265 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ 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