In linux-next 3.1.0-rc2-next-20110819+ when the screen goes to sleep then the screen doesn't refresh properly until I switch to a non-graphical TTY and then come back. It does this every time.
I have set my power management to go to sleep after 1 minute to test this. After the back light turns off then the screen doesn't come back properly.
The gnome tool bar at the top of my screen partly shows up, and the window outlines are there. I can click on the terminal icon on my gnome tool bar and the terminals start, but I just can't see them.
Then when I switch to tty2 and back the screen works properly again.
It's not a huge deal, but I thought I should let you know.
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller]) Subsystem: Samsung Electronics Co Ltd Device c581 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 40 Region 0: Memory at fc000000 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 1800 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915
regards, dan carpenter