I am also affected. It seems to happen when I use the laptop screen together with a DP connected external screen in a dualscreen configuration (ca once a day).
Find my log attached. ** Attachment added: "syslog" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1384342/+attachment/4292474/+files/syslog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1384342 Title: kernel messages intel_crtc_wait_for_pending_flips correlate to compiz hang To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1384342/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs