From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754272AbZIGShm (ORCPT ); Mon, 7 Sep 2009 14:37:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754251AbZIGShl (ORCPT ); Mon, 7 Sep 2009 14:37:41 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:57693 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754243AbZIGShk (ORCPT ); Mon, 7 Sep 2009 14:37:40 -0400 Date: Mon, 7 Sep 2009 11:37:39 -0700 (PDT) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: "Carlos R. Mafra" , Ma Ling , Jesse Barnes , Zhao Yakui , Eric Anholt cc: Linux Kernel Mailing List Subject: Re: [Bisected] Output to external monitor is broken (Re: Linux 2.6.31-rc9) In-Reply-To: <20090906142206.GA4449@Pilar.aei.mpg.de> Message-ID: References: <20090906142206.GA4449@Pilar.aei.mpg.de> User-Agent: Alpine 2.01 (LFD 1184 2008-12-16) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ Just adding all the right people to the email participants line. Eric, Jesse, Zhao, Ma Ling - should I just revert that commit? Carlos - can you also do the full dmesg _with_ the corruption? I realize that your screen is unreadable, but if you can just log in blindly, and do a "dmesg > saved-dmesg-file" and then do a clean reboot? No need for a serial console or anything fancy - I assume the machine is still working, just with bad output. It might also be a good idea to boot with "drm.debug=15" to enable much more debugging output. - Linus ] On Sun, 6 Sep 2009, Carlos R. Mafra wrote: > > On Sat 5.Sep'09 at 16:54:27 -0700, Linus Torvalds wrote: > > Go wild, and please give this a final round of testing. > > The output from my Vaio laptop to the external monitor (LG Flatron M228WD) > is broken now. The screen is all messed-up once the boot messages from the > kernel appear on it (see the picture at the link below). > > I bisected it down to f8aed700c6ec46ddade6570004ce25332283b306 ("drm/i915: > Set crtc/clone mask in different output devices"). I doubled checked > that reverting this commit from 2.6.31-rc9 fixes the problem. > > The picture of the bad output is here: > http://www.aei.mpg.de/~crmafra/bad_output.jpg > > as well as my config: > http://www.aei.mpg.de/~crmafra/config-2.6.31-rc9.txt > > and dmesg (with the above commit reverted): > http://www.aei.mpg.de/~crmafra/dmesg-2.6.31-rc9+revert.txt > > (the vga=0x0364 in the command line does not work since I > enabled KMS, so I get a prompt in the beginning from which I > choose vga=0. But the above regression is not affected by this > choice because the command line was always the same during > bisection) > > If there is anything else I can do, just let me know. > > > >