From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756954AbYIIQiJ (ORCPT ); Tue, 9 Sep 2008 12:38:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755160AbYIIQhy (ORCPT ); Tue, 9 Sep 2008 12:37:54 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:45384 "EHLO gprs189-60.eurotel.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754927AbYIIQhx (ORCPT ); Tue, 9 Sep 2008 12:37:53 -0400 Date: Tue, 9 Sep 2008 17:36:54 +0200 From: Pavel Machek To: Matthew Garrett Cc: kernel list , ACPI mailing list , "Rafael J. Wysocki" Subject: Re: [regression] Re: Controlling backlight on thinkpad x60 Message-ID: <20080909153654.GA2731@elf.ucw.cz> References: <20080908151058.GA1650@elf.ucw.cz> <20080908155457.GA30619@srcf.ucam.org> <20080909152859.GA1813@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080909152859.GA1813@elf.ucw.cz> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 2008-09-09 17:28:59, Pavel Machek wrote: > On Mon 2008-09-08 16:54:58, Matthew Garrett wrote: > > On Mon, Sep 08, 2008 at 05:10:58PM +0200, Pavel Machek wrote: > > > > > (I do have CONFIG_ACPI_VIDEO disabled, it killed my machine last time > > > I enabled it, is it mandatory now?) > > > > On Thinkpads with ACPI video support, yes. > > That's bad then, because ACPI video support does not work here. I can > boot, and even Fn-home/end works, but it breaks with X. > > In old versions, it resulted on black screen after LID close in X. > > In 2.6.27-rc5, screen goes black as soon as X are started. Hmm, I have updated my X server, and it now works with ACPI_VIDEO... which means that this is probably not affecting huge number of people. Hmm... something is still funny. I have root@amd:/sys/class/backlight/acpi_video0# echo 1 > brightness root@amd:/sys/class/backlight/acpi_video0# echo 0 > brightness root@amd:/sys/class/backlight/acpi_video0# cd ../acpi_video1/ root@amd:/sys/class/backlight/acpi_video1# echo 0 > brightness root@amd:/sys/class/backlight/acpi_video1# echo 7 > brightness root@amd:/sys/class/backlight/acpi_video1# echo 0 > brightness ...and both acpi_video0 *and* acpi_video1 works... strange. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html