From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH] i915: ensure that VGA plane is disabled Date: Wed, 19 Dec 2012 12:40:01 +0100 Message-ID: <20121219114001.GD5737@phenom.ffwll.local> References: <1355911421-2566-1-git-send-email-krzysiek@podlesie.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ee0-f48.google.com (mail-ee0-f48.google.com [74.125.83.48]) by gabe.freedesktop.org (Postfix) with ESMTP id 04EB0E5C76 for ; Wed, 19 Dec 2012 03:38:26 -0800 (PST) Received: by mail-ee0-f48.google.com with SMTP id b57so934094eek.7 for ; Wed, 19 Dec 2012 03:38:26 -0800 (PST) Content-Disposition: inline In-Reply-To: <1355911421-2566-1-git-send-email-krzysiek@podlesie.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Krzysztof Mazur Cc: Daniel Vetter , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Wed, Dec 19, 2012 at 11:03:41AM +0100, Krzysztof Mazur wrote: > Some broken systems (like HP nc6120) in some cases, usually after LID > close/open, enable VGA plane, making display unusable (black screen on LVDS, > some strange mode on VGA output). We used to disable VGA plane only once at > startup. Now we also check, if VGA plane is still disabled while changing > mode, and fix that if something changed it. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=57434 > Signed-off-by: Krzysztof Mazur *insert laments about BIOSen doing horrible things* Thanks a lot for digging into this and coming up with the patch, merged to -fixes for 3.8 with a cc: stable, so should show up reasonable quickly in a stable kernel near you. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch