Bug#660394: Screen goes blank @30 seconds into boot

[jheaton5 <jheaton5@comcast.net>]

On Sat, 2012-04-07 at 21:15 +0100, Ben Hutchings wrote:
> On Sat, 2012-04-07 at 13:53 -0500, Jonathan Nieder wrote:
> > Ben Hutchings wrote:
> > 
> > > commit 7885d2052bd94395e337709cfba093a41f273ff1
> > > Author: Jesse Barnes <jbarnes@virtuousgeek.org>
> > > Date:   Thu Jan 12 14:51:17 2012 -0800
> > >
> > >     drm/i915: mask transcoder select bits before setting them on LVDS
> > >
> > > which was included in Linux 3.3.
> > >
> > > I'll apply it and submit it for inclusion in 3.2.y.
> > 
> > Thanks.  Note that Joel tested that patch and it did not fix his
> > problem (<http://bugs.debian.org/660394#36>).
> 
> Oops, OK.
> 
> Both Joel and "Wearenotalone" have Sandybridge integrated graphics
> processors, though they are D (desktop) and M (mobile) variants
> respectively and there may well be significant differences in the
> display connections as well.
> 
> There seems to have been some refactoring of i915 display output setup
> in Linux 3.2 and subsequent fixes in 3.3.  Joel, can you test the
> package of Linux 3.3 from experimental?
> 
> Ben.
> 
I installed Linux 3.3 and xserver-xorg-video-intel 2.18.0-2 yesterday.
The issue is not fixed.  However, I can see the video flashing on and
off with a bright light aimed at the screen. Eventually, usually after a
few hours, the screen turns on and stays on.  This condition is not
stable because running xrandr or <ctrl><alt> F1 turn the video off.

Joel