From: "Zephaniah E. Loss-Cutler-Hull" Subject: Re: Linux 2.6.37 Date: Fri, 7 Jan 2011 14:20:39 -0500 Message-ID: <20110107192039.GO6307@aehallh.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: Linus Torvalds , Chris Wilson , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On Thu, 06 Jan 2011 11:50:02 +0100, 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 And I have a different regression. On 2.6.36.2 everything is fine, on 2.6.37 my laptop's display is more or less blank, backlight on, with a white pattern slowly moving across the screen like it was a (bad) moving spot light effect. dmesg output and .configs at https://bugs.freedesktop.org/show_bug.cgi?id=32903 Zephaniah E. Loss-Cutler-Hull.