On Fri, Mar 22, 2013 at 11:13 AM, Daniel Vetter <daniel.vetter at ffwll.ch> wrote: > On Fri, Mar 22, 2013 at 11:00 AM, Takashi Iwai <tiwai at suse.de> wrote: >> At Fri, 22 Mar 2013 10:53:41 +0100, >> Daniel Vetter wrote: >>> >>> This reverts the following commits: >>> >>> cf0a6584aa6d382f802 drm/i915: write backlight harder >>> 770c12312ad617172b1 drm/i915: Fix blank panel at reopening lid >>> >>> We've come full-circle in this mess and now broke the originally fixed >>> machines again with the new trick. So remove it all and start over. >>> >>> References: http://www.mail-archive.com/intel-gfx at lists.freedesktop.org/msg18788.html >>> Cc: Jani Nikula <jani.nikula at intel.com> >>> Cc: Takashi Iwai <tiwai at suse.de> >>> Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch> >> >> Well, although I fully agree that it's better to clear all voodoo once >> and fix from scratch, my concern is that it'll cause mess for stable >> kernel. This path won't fix anything by itself, so it's not suitable >> for stable alone. If any, it should be together with the real fix >> patch. >> >> I guess you'll submit the proper fix patch(es) to stable later on? > > Oops, I've missed that 770c12312ad617172 itself is a regression fix, > but lacks the relevant commit citations. I'll resend with more > aggressive reverting. Actually the only other patch I've found is 6db65cbb941f, but no one reported a regression against that one yet. So I think we can leave that in for now. So I still think that this is the patch I want for 3.9&stable, since oldest regression wins. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch