linux-kernel - Re: + drivers-gpu-drm-i915-intel_lvdsc-fix-locking-snafu.patch added to -mm tree

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Message-ID: <20090204195324.GA4548@viiv.ffwll.ch>
Date:	Wed, 4 Feb 2009 20:53:24 +0100
From:	Daniel Vetter <daniel@...ll.ch>
To:	Bruno Prémont <bonbons@...ux-vserver.org>
Cc:	Dave Airlie <airlied@...ux.ie>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, dri-devel@...ts.sourceforge.net
Subject: Re: + drivers-gpu-drm-i915-intel_lvdsc-fix-locking-snafu.patch
	added to -mm tree

On Wed, Feb 04, 2009 at 07:03:57PM +0100, Bruno Prémont wrote:
> This patch does not work for me.
> With this patch applied kernel fails to read EDID data and discover
> proper modes. (It ends up displaying a picture looking like the BIOS
> bootup image). X fails to start finding no valid mode for LVDS output.

I've had the same problem (at least wrt to X), but it seems to disappear
when cold-booting. It even works when I boot with modeset=0, kill X, then
reload the i915 module with modeset=1. Maybe the kms is a bit flakey when
X played with it for too long beforehands.

But kernel modesetting for the framebuffer console always works, so
YMMV.

-Daniel
-- 
Daniel Vetter
E-Mail: daniel.vetter@...ll.ch
Tel.: +41 (0)79 365 57 48
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