no more blank screen on power save...

[masavini]

hi,
"blank screen" option in power management hasn't been working since this morning. no update or other system change performed...

when power manager tries to blank screen after N minutes of inactivity, the screen goes "grey": the display lamp is on, and a uniform light grey color is displayed.

using ubuntu 10.10 32bit, gnome 2.32.0

any hints on how to debug?
thanks for your help!

[masavini]

automagically fixed... no change performed on the system, but after a couple of reboots the blank screen got back...