There is a race between gnome-screensaver fading the screen and upower suspending the computer. You can try uncommenting the "no_fade_on_user_switch" patch to see if it goes away. This is what has been done in Precise (in 3.2.0-1ubuntu4).
There is a race between gnome-screensaver fading the screen and upower suspending the computer. on_user_ switch" patch to see if it goes away. This is what has been done in Precise (in 3.2.0-1ubuntu4).
You can try uncommenting the "no_fade_