From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Subject: back light conflict i915 vs dell-laptop Date: Thu, 25 Nov 2010 12:33:01 +0300 Message-ID: <20101125093301.GT1522@bicker> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: chris@chris-wilson.co.uk Cc: mjg@redhat.com, rpurdie@rpsys.net, kernelorg@bof.de, intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org Patrick Schaaf has reported that the i915 driver is setting his backlight very dim when he starts GDM. https://bugzilla.kernel.org/show_bug.cgi?id=23472 It should be the dell-laptop platform driver controlling his backlight. Gnome tries to restore the backlight settings through the dell_laptop interface in sysfs but it fails. (Because the platform hardware refuses to set the settings to what it thinks they already are). regards, dan carpenter