found this solution from "man pm-suspend" On some hardware putting the video card in the suspend state and recovering from it needs some special quirk handling. With the --quirk-* options of the pm-suspend and pm-suspend-hybrid commands you can select which quirks should be used.
If pm-suspend, pm-hibernate, or pm-suspend-hybrid are invoked without any commandline parameters, they will try to grab the correct quirks from the internal quirk database. --quirk-dpms-on This option forces the video hardware to turn on the screen during resume. Most video adapters turn on the screen themselves, but if you get a blank screen on resume that can be turned back on by moving the mouse or typing then this option may be useful. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1001315 Title: Screen remain off after returning from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1001315/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs