From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753820AbYJAA7U (ORCPT ); Tue, 30 Sep 2008 20:59:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753063AbYJAA7M (ORCPT ); Tue, 30 Sep 2008 20:59:12 -0400 Received: from gw.goop.org ([64.81.55.164]:38679 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752812AbYJAA7M (ORCPT ); Tue, 30 Sep 2008 20:59:12 -0400 Message-ID: <48E2CB5A.1050809@goop.org> Date: Tue, 30 Sep 2008 17:59:06 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.16 (X11/20080919) MIME-Version: 1.0 To: Pavel Machek CC: carbonated beverage , linux-kernel@vger.kernel.org Subject: Re: Thinkpad brightness keys kill X on 2.6.26.5 References: <20080925060244.GA18945@net-ronin.org> <20080930231952.GB15903@ucw.cz> In-Reply-To: <20080930231952.GB15903@ucw.cz> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. J