From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030418Ab2CWTup (ORCPT ); Fri, 23 Mar 2012 15:50:45 -0400 Received: from mail-wg0-f44.google.com ([74.125.82.44]:46173 "EHLO mail-wg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030290Ab2CWTun convert rfc822-to-8bit (ORCPT ); Fri, 23 Mar 2012 15:50:43 -0400 From: Maciej Rutecki Reply-To: maciej.rutecki@gmail.com To: Nick Bowler Subject: Re: Regression: black screen on VGA w/ nouveau in Linux 3.3 Date: Fri, 23 Mar 2012 20:50:38 +0100 User-Agent: KMail/1.13.7 (Linux/3.3.0-rc4; KDE/4.7.4; x86_64; ; ) Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org References: <20120319143548.GA27172@elliptictech.com> In-Reply-To: <20120319143548.GA27172@elliptictech.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Message-Id: <201203232050.38332.maciej.rutecki@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On poniedziałek, 19 marca 2012 o 15:35:48 Nick Bowler wrote: > Hi folks, > > Just upgraded to Linux 3.3 on my desktop and noticed that the VGA output > on my card w/ nouveau is totally black (both at the console and in X). > Almost everything appears to work normally: DPMS works, modesetting > works, DDC works... all messages indicate that things are working -- > just the image is completely black. > > The VGA is one of two outputs in use: the other (DVI) output works > normally. The card also has an unused TV-out port, FWIW. > > The card is an NV36 generation (Geforce FX5700 AGP). This is a > regression from Linux 3.2 -- unfortunately, bisection has proved > extremely difficult because the intermediate kernels git is asking me > to test panic immediately on boot (and compiling Linux takes a fairly > long time on this box too). The failed attempt went like this: > > git bisect start 'drivers/gpu' > # bad: [c16fa4f2ad19908a47c63d8fa436a1178438c7e7] Linux 3.3 > git bisect bad c16fa4f2ad19908a47c63d8fa436a1178438c7e7 > # good: [805a6af8dba5dfdd35ec35dc52ec0122400b2610] Linux 3.2 > git bisect good 805a6af8dba5dfdd35ec35dc52ec0122400b2610 > # skip: [5d56fe5fd794a98c4f446f8665fd06b82e93ff64] Merge branch > 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 > into drm-core-next git bisect skip > 5d56fe5fd794a98c4f446f8665fd06b82e93ff64 > # good: [dffc9ceb55695f121adc57dd1fde7304c3afe81e] gma500: kill virtual > mapping support git bisect good dffc9ceb55695f121adc57dd1fde7304c3afe81e > # skip: [5c2a5ce689c99037771a6c110374461781a6f042] drm: add missing > exports for i810 driver. git bisect skip > 5c2a5ce689c99037771a6c110374461781a6f042 > # skip: [44517c44496062180a6376cc704b33129441ce60] drm/radeon/kms: Add an > MSI quirk for Dell RS690 git bisect skip > 44517c44496062180a6376cc704b33129441ce60 > > (I stopped at this point) > > I'm running the latest git xf86-video-nouveau, but since the issue > occurs at the console it's probably not too important... > > Let me know if you need any more info, I created a Bugzilla entry at https://bugzilla.kernel.org/show_bug.cgi?id=42983 for your bug/regression report, please add your address to the CC list in there, thanks! -- Maciej Rutecki http://www.mrutecki.pl