On Sat, Oct 03, 2009 at 10:38:12AM -0400, Alex Deucher wrote:
> From: Alex Deucher <alexdeuc...@gmail.com>
> 
> On Sat, Oct 3, 2009 at 8:19 AM, Matti Aarnio <matti.aar...@zmailer.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.

Thanks, that saved the day.  The kernel boots to text console just fine, and 
when
I am happy, log in as my non-privileged self and start X, firmware loading and 
mode
settings are working correctly.

Of course I would be happier without these boot commandline extras, so
current Fedora 12 (Beta) kernel has some bad radeon drm/dri/kms bits on it.
Couple of weeks ago things did work just fine with modesetting happening
early in the boot.  Four weeks ago things failed, and six weeks ago this
modesetting thing did not exist...

Current kernel is:
  2.6.31.1-56.fc12.x86_64 #1 SMP

> Alex

/Matti Aarnio

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