From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754024AbYIYTKG (ORCPT ); Thu, 25 Sep 2008 15:10:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754095AbYIYTJx (ORCPT ); Thu, 25 Sep 2008 15:09:53 -0400 Received: from brak.cowlabs.com ([208.96.51.45]:46443 "EHLO brak.cowlabs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752841AbYIYTJw (ORCPT ); Thu, 25 Sep 2008 15:09:52 -0400 Date: Thu, 25 Sep 2008 12:09:30 -0700 From: carbonated beverage To: Matthew Garrett Cc: linux-kernel@vger.kernel.org Subject: Re: CONFIG_ACPI_VIDEO on Thinkpad blanks display. Message-ID: <20080925190930.GA17184@net-ronin.org> References: <20080925060244.GA18945@net-ronin.org> <20080925070741.GA22376@net-ronin.org> <20080925100746.GA13185@srcf.ucam.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080925100746.GA13185@srcf.ucam.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 25, 2008 at 11:07:46AM +0100, Matthew Garrett wrote: > > Without CONFIG_ACPI_VIDEO, the above message don't appear. From this point, > > any pointers on figuring out why the ACPI features makes the screen go blank? > > Yes. X assumed that any ACPI key press was a request to switch the video > output. Upgrade X. Since CONFIG_ACPI_VIDEO wasn't required before 2.6.26.x to change the LCD brightness, I'd rather the kernel go back to whatever it was doing for 2.6.25.x. Upgrading X past what's currently packaged by the distribution just to get a new kernel working is somewhat of a pain. What change linked the brightness keys to CONFIG_ACPI_VIDEO? -- DN Daniel