From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [PATCH 3/3] i915: Don't provide ACPI backlight interface if firmware expects Windows 8 Date: Sat, 15 Jun 2013 19:44:05 +0100 Message-ID: <20130615184405.GA11196@srcf.ucam.org> References: <1370818899-8595-4-git-send-email-matthew.garrett@nebula.com> <51BABC6F.3050201@intel.com> <1371230988.2490.2.camel@x230> <51BBC2E1.9040401@intel.com> <1371260284.523.2.camel@x230> <51BBEA32.1040002@intel.com> <20130615041945.GA4756@srcf.ucam.org> <51BC5E1B.2020400@intel.com> <20130615151628.GA9868@srcf.ucam.org> <20130615182942.GA6424@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:40176 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754158Ab3FOSoP (ORCPT ); Sat, 15 Jun 2013 14:44:15 -0400 Content-Disposition: inline In-Reply-To: <20130615182942.GA6424@phenom.ffwll.local> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Aaron Lu , "linux-acpi@vger.kernel.org" , Seth Forshee , "Lee, Chun-Yi" , "intel-gfx@lists.freedesktop.org" , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , Len Brown , "Rafael J. Wysocki" , Zhang Rui , Aaron Lu , Alex Deucher On Sat, Jun 15, 2013 at 08:29:42PM +0200, Daniel Vetter wrote: > Aside at the end: If the gnome tool indeed has its own backlight code and > doesn't just use that as a fallback if the xrandr backligh property isn't > available, then that's just a serious bug in gnome and should be fixed > asap. But imo that's not something we should try to (nor do I see any way > how to) work around in the kernel. It's only used if there's no backlight property on the display. -- Matthew Garrett | mjg59@srcf.ucam.org