Just to add: I have the same problem, with the same crippling effects: my displays will randomly go into powersave (turn completely black) and cannot be awakened through the mouse or keyboard input. The only solution is a hard reboot.
I have a System 76 Mad Dog: 1 GB nVidia GeForce GT430 4 GB - 2 x 2 GB - DDR3 - 1333 MHz 2nd Generation Intel Core i5-2400 Because of my graphics card, one of my monitors is connected through DVI; the other is connected by HDMI. I can also echo Palewire that this has had a seemingly positive cause while playing music (Banshee or Clementine) although at other times it seems just random. Bryce: I can say that I have never been switching workspaces when this occured. However, I do seem to be affected by another bug when using Unity that clicking the Workspace Switcher makes my screens temporarily go black. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/882710 Title: Dual monitors black out and session freezes, might be linked to switching workspaces To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/882710/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs