The issue seems to be the power state of the monitor. Full report at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=801146
** Bug watch added: Debian Bug tracker #801146 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=801146 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1493921 Title: X server fails to set correct mode on resume from sleep (NVIDIA: Setting a mode on head 0 failed: An invalid mode was requested) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1493921/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs