Just updated to newer kernel from ppa.
New version is 3.7.0-4-generic #12-Ubuntu SMP Wed Nov 28 09:30:01 UTC 2012
x86_64
After suspend and wake up I receive black screen again. Tried to
Ctrl+Alt+Backspace, and LightDM greetings sound was played, but screen stills
black.
Can't switch to another T
Tried to connect external monitor. Bug can be reproduced.
If I switch DIS card "Off", after resuming I have full-power fan and black
screen.
If I switch DIS card "On", after resuming I have low-power fan and black screen.
Also i tried to connect to my notebook through ssh and restart X and LightD