From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753150AbYJAJjR (ORCPT ); Wed, 1 Oct 2008 05:39:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752022AbYJAJjF (ORCPT ); Wed, 1 Oct 2008 05:39:05 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:47553 "EHLO gprs189-60.eurotel.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751935AbYJAJjF (ORCPT ); Wed, 1 Oct 2008 05:39:05 -0400 Date: Wed, 1 Oct 2008 11:40:41 +0200 From: Pavel Machek To: Jeremy Fitzhardinge Cc: carbonated beverage , linux-kernel@vger.kernel.org Subject: Re: Thinkpad brightness keys kill X on 2.6.26.5 Message-ID: <20081001094041.GB897@elf.ucw.cz> References: <20080925060244.GA18945@net-ronin.org> <20080930231952.GB15903@ucw.cz> <48E2CB5A.1050809@goop.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <48E2CB5A.1050809@goop.org> 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 2008-09-30 17:59:06, Jeremy Fitzhardinge wrote: > Pavel Machek wrote: >> Hi! >> >> >>> I just upgraded from 2.6.25.17 to 2.6.26.5 on my Thinkpad Z61t, and found >>> the brightness keys will cause the X server to die. When using the >>> brightness up/down keys, the screen will go blank -- Control+Alt+F# will >>> still switch to a different virtual console, but switching back will not >>> restore the video state. >>> >>> After killing the window manager, I was able to bring up X again without >>> a problem -- but using the brightness keys still causes it to go blank >>> again within X, while the brightness does get changed correctly on the >>> console. >>> >>> There were no kernel messages, but this appeared in the Xorg log: >>> >> >> Yes, I had similar problems... for me it blanked screen on closing >> lid. Problem disappeared after upgrading X... >> >> >>> .config attached -- is this a known issue? In the meantime, I'm starting >>> a bisection to figure out where the problem crops up. >>> >> >> For me CONFIG_ACPI_VIDEO never really worked... >> > > On my shiny new X200 running Fedora Rawhide, I'm finding that the > brightness control keys work OK, but the backlight remains stuck off after > a resume. The machine is working fine but the backlight is just off; I can > see the display under a bright light. Switching consoles and poking about > in /sys/class/backlight/acpi_video?/ didn't help. What are you using for s2ram? s2ram -f -a 3 normally works on thinkpads... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html