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Message-ID: <a728f9f90910030738q4341611fm4ccd680b51201f6d@mail.gmail.com>
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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