The bug is in mutter and muffin (which is a fork of mutter). The upstream bug where it was finally fixed: https://bugzilla.gnome.org/show_bug.cgi?id=677116
I'm attaching here the patch that fixes the problem for mutter. ** Bug watch added: GNOME Bug Tracker #677116 https://bugzilla.gnome.org/show_bug.cgi?id=677116 ** Patch added: "Patch fixing blue screen bug for mutter" https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/998735/+attachment/3685806/+files/05_fix_blue_screen.patch ** Also affects: mutter via https://bugzilla.gnome.org/show_bug.cgi?id=677116 Importance: Unknown Status: Unknown ** Package changed: gnome-power-manager (Ubuntu) => mutter (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/998735 Title: Light blue screen on primary monitor when waking up from inactivity Status in Mutter: Unknown Status in “mutter” package in Ubuntu: Confirmed Bug description: I have configured ubuntu to turn of screen after 10 minutes of inactivity. When I wake up computer the external primary screen is light blue and the laptop-screen is black and displaying my usename at the top right corner. I use Ubuntu 12.04 with propitary Nvidia drivers. I also use GDM and gnome-shell (Gnome 3). I use a external monitor as primary screen and laptop-screen as secondary. Both resolution is 1920x1200. Laptop is Dell XPS M1530. To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/998735/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

