On Tue 11-01-11 17:39:42, Chris Wilson wrote: > On Tue, 11 Jan 2011 18:19:17 +0100, Michal Hocko <mhocko@xxxxxxx> 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. > > The second patch is wrong in that it will prevent changing resolutions > using the panel fitter. The first patch looks along the right lines, just > misses the possibility that the backlight can be modified by other means. > > So hopefully, you just need the first patch. I would have bet I have tested the 1st patch but let me double check. The 2nd patch alone doesn't fix the problem. > -Chris > > -- > Chris Wilson, Intel Open Source Technology Centre -- 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
