All I can recommend is to boot single user mode, sudo aptitude update
sudo aptitude safe-upgrade sudo dpkg --configure gdm
perhaps even aptitude remove gdm and aptitude install gdm then reboot
into multy user mode.


 On Thu, Apr 09, 2009 at 06:10:41PM +1000, Graham Williams wrote:
> Have just upgraded a fairly vanilla etch install on a Dell Precision
> 690 (AMD64) with an nvidia graphics chip. All seemed to proceed well,
> but on reboot and starting up GDM, most key presses result in the
> screen resolution changing - I can't login!
> 
> After quite a bit of research and attempts to determine what is going
> on, I have run out of ideas! Ctrl-Alt-f1, etc, do not function.  The
> simplest way I've figured out to log on is through single user
> mode. Keyboard works just fine there. Booting into a Red Hat partition
> is also just fine.
> 
> I've created a .xinitrc which only runs xev so I can see what keys it
> is seeing. When I run with video driver as "nv" (in
> /etc/X11/xorg.conf) xev is not seeing any keyboard activity. Changing
> to "vga" at least I can see that xev gets the keystrokes (but the
> screen is not usable). Changing to "vesa" exhibits the same behaviour
> as "nv" - that is, no keys reported by xev, and any key press seems to
> change the screen resolution.
> 
> With the "nv" driver (xserver-xorg-video-nv) I can seeverything on the
> screen. Mouse and menus work.  Ctl-Alt-Backspace works (to terminate
> X11). But most other keys simple cause this screen resolution change.
> 
> Any ideas?
> 
> Thanks,
> Graham
> 
> 
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