Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754622Ab3HBGZW (ORCPT ); Fri, 2 Aug 2013 02:25:22 -0400 Received: from mail-ob0-f179.google.com ([209.85.214.179]:43213 "EHLO mail-ob0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753992Ab3HBGZT (ORCPT ); Fri, 2 Aug 2013 02:25:19 -0400 MIME-Version: 1.0 In-Reply-To: <51FB4B0A.7060706@intel.com> References: <20130731162252.GC4724@pd.tnic> <20130731163623.GD4724@pd.tnic> <1419236.138PcnXVBh@vostro.rjw.lan> <20130801080724.GA3448@nazgul.tnic> <51FB4B0A.7060706@intel.com> Date: Fri, 2 Aug 2013 08:25:18 +0200 Message-ID: Subject: Re: i915 backlight From: Josep Lladonosa To: Aaron Lu Cc: Borislav Petkov , "Rafael J. Wysocki" , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, lkml , ACPI Devel Maling List Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1458 Lines: 54 Hello, I am using a Lenovo Edge E530 and, with kernel 3.11.0-rc3, I had to change to this parameter to the kernel boot: GRUB_CMDLINE_LINUX="acpi_osi=\"!Windows 2012\"" instead of previous GRUB_CMDLINE_LINUX="acpi_osi=Linux acpi_backlight=vendor" to be able to change brightness. In some kernel versions before, it worked, but with 15 levels, but in graphical system brightness bar was not moving. Now I have, though, 8 possible values for brightness and brightness bar shows its correct position. Josep On 2 August 2013 08:00, Aaron Lu wrote: > On 08/01/2013 04:07 PM, Borislav Petkov wrote: >> On Wed, Jul 31, 2013 at 11:16:52PM +0200, Rafael J. Wysocki wrote: >>> Does reverting efaa14c help? >> >> Nope. >> >> But see my other reply to Aaron. > > Assume you have specified to use intel_backlight in xorg.conf, does > booting with video.brightness_switch_enabled=0 help? > > Thanks, > Aaron > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- -- Salutacions...Josep -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/