From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753654Ab2LBLdA (ORCPT ); Sun, 2 Dec 2012 06:33:00 -0500 Received: from mx.scalarmail.ca ([98.158.95.75]:2770 "EHLO ironport-01.sms.scalar.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751933Ab2LBLc6 (ORCPT ); Sun, 2 Dec 2012 06:32:58 -0500 Date: Sun, 2 Dec 2012 06:32:57 -0500 (EST) From: Tom St Denis To: linux-kernel@vger.kernel.org Cc: daniel vetter Message-ID: <1394390827.121688.1354447977594.JavaMail.root@elliptictech.com> In-Reply-To: <1328143975.121508.1354405791738.JavaMail.root@elliptictech.com> Subject: Re: Brightness control fails between 3.6.8 and 3.7.0-rc7 (Intel 915/Dell Vostro 3560) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [172.17.19.112] X-Mailer: Zimbra 7.2.1_GA_2790 (ZimbraWebClient - GC23 (Linux)/7.2.1_GA_2790) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I've narrowed it down to sometime between v3.6.8 and v3.7-rc1. So none of the v3.7 series will work with this GPU/panel. I don't think it has anything to do with the dell modules since they haven't changed. Tom ----- Original Message ----- > From: "Tom St Denis" > To: linux-kernel@vger.kernel.org > Cc: "daniel vetter" , mjg59@srcf.ucam.org > Sent: Saturday, 1 December, 2012 6:49:51 PM > Subject: Brightness control fails between 3.6.8 and 3.7.0-rc7 (Intel 915/Dell Vostro 3560) > > Hello all, > > Somewhere between v3.6.8 [vanilla] and 3.7.0-rc7 the ability to > control the LCD brightness was broken on this laptop [details > below]. Basically it locks the brightness as full brightness and > cannot be changed. It works properly in v3.6.8 though [and > below...]. > > Details: > > 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core > processor Graphics Controller (rev 09) (prog-if 00 [VGA controller]) > Subsystem: Dell Device 056e > Flags: bus master, fast devsel, latency 0, IRQ 44 > Memory at c3000000 (64-bit, non-prefetchable) [size=4M] > Memory at b0000000 (64-bit, prefetchable) [size=256M] > I/O ports at 5000 [size=64] > Expansion ROM at [disabled] > Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- > Capabilities: [d0] Power Management version 2 > Capabilities: [a4] PCI Advanced Features > Kernel driver in use: i915 > > This is on a Dell Vostro 3560/0C05GV > > I have the discrete radeon turned off [via vgaswitcheroo]. I have > dell_wmi and dell_laptop loaded. I use the same kernel config > between the two builds. > > Tom