From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754051AbYJAS2s (ORCPT ); Wed, 1 Oct 2008 14:28:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753273AbYJAS2l (ORCPT ); Wed, 1 Oct 2008 14:28:41 -0400 Received: from gw.goop.org ([64.81.55.164]:38362 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753204AbYJAS2k (ORCPT ); Wed, 1 Oct 2008 14:28:40 -0400 Message-ID: <48E3C152.1000102@goop.org> Date: Wed, 01 Oct 2008 11:28:34 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.16 (X11/20080919) MIME-Version: 1.0 To: Matthew Garrett CC: Pavel Machek , 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> <48E2CB5A.1050809@goop.org> <20081001095322.GA27987@srcf.ucam.org> In-Reply-To: <20081001095322.GA27987@srcf.ucam.org> 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 Matthew Garrett wrote: > On Tue, Sep 30, 2008 at 05:59:06PM -0700, Jeremy Fitzhardinge wrote: > > >> 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. >> > > Intel graphics, right? Yes. The new, erm , X4500? > The DRM layer should handle full resume on modern > Intel hardware, but there's the potential for bugs. This is entirely > unrelated to ACPI, though. > OK, that's a good clue. I poke at acpi to change the brightness, so I'd assumed that acpi would also handle turning the backlight on/off. I'm using the rawhide rather than standard kernel, but I'd thought they were fairly similar. I'm also using the vesa X server; I haven't tried using the intel one yet. J