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Date:	Sat, 3 Oct 2009 10:38:12 -0400
From:	Alex Deucher <alexdeucher@...il.com>
To:	Matti Aarnio <matti.aarnio@...iler.org>
Cc:	dri-devel@...ts.sf.net, linux-kernel@...r.kernel.org
Subject: Re: How to disable drm/kms actions during boot?

On Sat, Oct 3, 2009 at 8:19 AM, Matti Aarnio <matti.aarnio@...iler.org> wrote:
> I have a display card + display combination that has recently had much problems
> during system boot.  Some system versions boot just fine to very large text mode,
> others create entirely black display.
>
> Is there any way to forbid the DRM from doing "maximize the text display area"
> operation at all during the boot?  I do want the DRM/KMS to happen latter, but
> NOT during system boot!
>

Boot with nomodeset or radeon.modeset=0 on the kernel command line.
That will disable kernel modesetting at boot.  You can then manually
load the modules with or without modesetting once the system is
booted.  drm-next also recently got support for forcing the console
mode.

Alex
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