linux-kernel - Re: [Regression: 2.6.25-rc5: Blank Screen: Intel 945]

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Date:	Wed, 19 Mar 2008 19:00:33 -0700
From:	Bryce Harrington <bryce@...onical.com>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	Justin Madru <jdm64@...ab.com>, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [Regression: 2.6.25-rc5: Blank Screen: Intel 945]

On Wed, Mar 19, 2008 at 04:48:59PM -0700, Jesse Barnes wrote:
> On Wednesday, March 19, 2008 4:38 pm Justin Madru wrote:
> > Jesse, do you still think it's a bug in the X server driver instead of
> > the kernel driver (dri I guess)? Because I can trigger the blank screen
> > before the X server even starts. If I press ctr+alt+f1 at the _right_
> > time when the kernel is booting (or I guess when the boot splash is
> > showing) it will instantly blank out. That doesn't seem like something
> > related to X.
>
> Depends on the boot splash program.  I think in some configurations it'll be X
> based, but again Bryce probably knows more here as the Ubuntu X guy. :)

Mmm, well indeed that may be the kernel framebuffer.

Justin, one thing you could try is to set your system to boot up without
starting gdm.  Either do this via /etc/X11/default-display-manager
(comment it out, or set to xdm or something) or bypass it entirely by 
mv /etc/rc3.d/{S30,K30}gdm, and then append '3' to the end of the boot line
in grub.  (Maybe there's a better way to achieve this with upstart, but
my upstart-fu is limited.)

Bryce
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