From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from darkcity.gna.ch ([195.226.6.51]:38532 "EHLO mail.gna.ch" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751704AbbJ0CUR (ORCPT ); Mon, 26 Oct 2015 22:20:17 -0400 Subject: Re: [PATCH 3.16.y-ckt 072/104] drm/radeon: Restore LCD backlight level on resume (>= R5xx) To: Luis Henriques References: <1445867006-18048-1-git-send-email-luis.henriques@canonical.com> <1445867006-18048-73-git-send-email-luis.henriques@canonical.com> Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com, Alex Deucher From: =?UTF-8?Q?Michel_D=c3=a4nzer?= Message-ID: <562EDD15.8030205@daenzer.net> Date: Tue, 27 Oct 2015 11:10:29 +0900 MIME-Version: 1.0 In-Reply-To: <1445867006-18048-73-git-send-email-luis.henriques@canonical.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: On 26.10.2015 22:42, Luis Henriques wrote: > 3.16.7-ckt19 -stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: =TF-8?q?Michel Dänzer?= > > commit 4281f46ef839050d2ef60348f661eb463c21cc2e upstream. > > Instead of only enabling the backlight (which seems to set it to max > brightness), just re-set the current backlight level, which also takes > care of enabling the backlight if necessary. > > Only the radeon_atom_encoder_dpms_dig part tested on a Kaveri laptop, > the radeon_atom_encoder_dpms_avivo part is only compile tested. > > Signed-off-by: Michel Dänzer > Signed-off-by: Alex Deucher > Signed-off-by: Luis Henriques We're currently investigating a regression which was bisected to this change. Please hold off on backporting this change until we have a solution for that. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer