Sounds like a kernel problem. Suspend/resume is handled in the kernel, and restarting X does not fix the problem. Moving to kernel.
Does this problem still occur on Ubuntu 12.04.1 "Precise Pangolin"? What about on Ubuntu 12.10 "Qantal Quetzal" beta 2? ** Package changed: xserver-xorg-video-ati (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/584714 Title: Radeon 2600XT poor performance after suspend-to-ram To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/584714/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs