linux-kernel - Re: [Intel-gfx] [PATCH] drm/i915: Disable all outputs early, before KMS takeover

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Date:	Tue, 05 Apr 2011 11:30:47 +0100
From:	Chris Wilson <chris@...is-wilson.co.uk>
To:	Tomas Winkler <tomasw@...il.com>,
	Pekka Enberg <penberg@...nel.org>,
	intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Daniel Vetter <daniel@...ll.ch>
Subject: Re: [Intel-gfx] [PATCH] drm/i915: Disable all outputs early, before KMS takeover

On Tue, 5 Apr 2011 13:21:08 +0300, Tomas Winkler <tomasw@...il.com> wrote:
> On Fri, Apr 1, 2011 at 2:51 PM, Pekka Enberg <penberg@...nel.org> wrote:
> > Unfortunately I get a blank screen with after boot:
> > Nacked-by: Pekka Enberg <penberg@...nel.org>

But until you can tell me where it explodes on your system, we fix
issues on several other machines...
 
> Not sure this is related, but when I enable DRM_I915_KMS=y I'm got
> stuck after boot too. When KMS is disabled I can at least get to the
> console (no graphics)
> This is with kernel 2.6.39-rc1.  It worked fine with 2.6.38. I don't
> have much time bisect and reboot.  Shell I  try to pull drm-fixes for
> rc2 or use try this patch?

Add drm.debug=0xe to your grub kernel parameters and attach the dmesg for
the failing boot. From that I should be able to recommend a course of
action.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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