On Tue 11-01-11 18:37:41, Michal Hocko wrote:
On Tue 11-01-11 18:17:44, Michal Hocko wrote:
[Let's CC Indan - author of the bugzilla patches]
On Thu 06-01-11 11:48:16, Michal Hocko wrote:
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
I can confirm that this problem is not present if both patches from bko#22672 are applied on top of 2.6.37 kernel. I haven't tried both patches separately, but I can surely try it if it makes any sense.
I have just tried that and they are really both necessary.
I must have mixed something. After retesting with the first patch (https://bugzilla.kernel.org/show_bug.cgi?id=22672#c33) the usecase works just fine (backlight is on without need to close&open the lid)
Sorry for confusion