I too am experiencing this issue. I'm running catalyst 13.1 on Kubuntu 12.10. Also, if I run "xset dpms force standby" it will instantly cause the issue, leading me to believe that it does in fact have to do with xset handling display sleep.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/958279 Title: FGLRX DPMS support totally broken, fails to wake up the monitor after putting it to sleep. To manage notifications about this bug go to: https://bugs.launchpad.net/fglrx/+bug/958279/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
