Hi, On Tue 04-01-11 17:15:45, Linus Torvalds wrote: [...] > We did have another revert to fix hopefullythe last "blank screen" > regression on intel graphics. It seems that there is still a regression for intel graphic cards backlight. One report is https://bugzilla.kernel.org/show_bug.cgi?id=22672. I can reproduce the problem easily by: xset dpms force standby; sleep 3s; xset dpms force on backlight doesn't get up (there is really dark picture though which doesn't get brighter by function keys which work normally) after dpms on until I close and open lid. The problem wasn't present in 2.6.36 $ lspci -vv [...] 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller]) Subsystem: Fujitsu Limited. Device 137a 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 16 Region 0: Memory at f0300000 (32-bit, non-prefetchable) [size=512K] Region 1: I/O ports at 1800 [size=8] Region 2: Memory at e0000000 (32-bit, prefetchable) [size=256M] Region 3: Memory at f0400000 (32-bit, non-prefetchable) [size=256K] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915 [...] -- Michal Hocko L3 team SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel