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From: briand on 4 Apr 2010 13:10
On Sun, 04 Apr 2010 10:47:57 -0500
Hugo Vanwoerkom <hvw59601(a)care2.com> wrote:

> Daniel Trebbien wrote:
> > I recently upgraded my Toshiba Satellite L45-S7409, running Debian
> > testing (Squeeze). This morning when I started my laptop, the
> > computer booted and I was able to use my GNOME desktop as usual.
> > This afternoon, however, when I started my laptop, the screen went
> > "black" a short moment after I saw: "Starting GNOME Display
> > Manager: gdm". More specifically, the laptop screen's backlight is
> > on and all I see is a single, white underscore at the top left of
> > the screen (almost as if `gdm` failed to "take over" the display).
> > The hard drive activity LED is flashing even with the "black"
> > screen (all black except for the single underscore character), but
> > the graphical login screen does not appear and typing on the
> > keyboard has no effect on the display.
> >
>

I have been seeing problem with X not starting properly without using
startx. you may want to give that a try.

also you may want to check the /var/log directory for Xorg.log and
gdm.log (?).

Brian


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From: Daniel Trebbien on 4 Apr 2010 14:30
> What version of gdm is this?

2.20.10-1
From: Daniel Trebbien on 4 Apr 2010 21:40
> I have been seeing problem with X not starting properly without using
> startx. you may want to give that a try.
> also you may want to check the /var/log directory for Xorg.log and
> gdm.log (?).

Running `sudo startx` appears to have the same effect as when `gdm` is starting; I see a black screen with a single, white underscore at the top.

Looking through `/var/log/gdm/:0.log` (yes, there's a colon at the beginning), the only thing that is listed as an error is:
(EE) "SynPS/2 Synaptics TouchPad" Unable to query/initialize Synaptics hardware.
(EE) PreInit failed for input device ""SynPS/2 Synaptics TouchPad""
(EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device
(EE) PreInit returned NULL for ""SynPS/2 Synaptics TouchPad""
(EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device
(EE) PreInit returned NULL for ""Macintosh mouse button emulation""

Looking through `/var/log/Xorg.0.log`, there are similar messages:
(EE) "SynPS/2 Synaptics TouchPad" Unable to query/initialize Synaptics hardware.
(EE) PreInit failed for input device ""SynPS/2 Synaptics TouchPad""
....
(EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device
....
(EE) PreInit returned NULL for ""SynPS/2 Synaptics TouchPad""
....
(EE) PreInit returned NULL for ""Macintosh mouse button emulation""
From: ja123 huang on 4 Apr 2010 21:50
The problem is intermittent. How often have you been booting up your system
since you 'fixed' the problem?
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