How to change resolution of login screen (i.e. gdm)?

[Chris G]

On Mon, Oct 13, 2008 at 01:44:15PM -0700, NoOp wrote:
> On 10/13/2008 09:26 AM, Richard Mancusi wrote:
> > On Mon, Oct 13, 2008 at 11:12, Chris G <cl at isbd.net> wrote:
> >> On my old (Fedora) system when I changed the system resolution it
> >> changed it for everything, including the gnome login screen.  This
> >> doesn't seem to happen with Ubuntu, the login screen stays obstinately
> >> at a rather low (and grotty) resolution and only when the user desktop
> >> starts up does it switch to my normal 1600x1200.
> >>
> >> Is there no way to avoid the resolution switch between logon and user
> >> desktop?
> >>
> >> --
> >> Chris Green
> > 
> > System/Administration/Startup-Manager
> > If Startup-Manager isn't there, install via:
> > System/Administration/Synaptic Package Manager
> > 
> > You can do many things there including limiting the number of
> > kernels shown at boot (Advance tab).  This was a question from
> > a different thread.
> 
> Cool! That lets me select whether to use the -386 kernel or the -generic
> kernel as default - thanks.
> 
> @Chris: use the following to set for your specific monitor:
> 
> gksu displayconfig-gtk
> 
> Log off and then log back in. Once you've done that:
> 
> gksu gedit /etc/X11/xorg.conf
> 
> and modify the "Virtual" settings this section to your proper screen
> settings (1600  1200):
> 
> Section "Screen"
> 	Identifier	"Default Screen"
> 	Device		"Configured Video Device"
> 	Monitor		"Configured Monitor"
> 	Defaultdepth	24
> 	SubSection "Display"
> 		Depth	24
> 		Virtual	1024	768
> 
The above didn't work (xorg.conf didn't parse) but the changes below
do it for me:-

    Section "Monitor"
            Identifier      "Configured Monitor"
            Modeline        "1600x1200"  160.96  1600 1704 1880 2160  1200 1201 1204 1242 -hsync +vsync
            Option          "PreferredMode" "1600x1200"
    EndSection

Nothing else in xorg.conf is changed, all I have added is that
Modeline and Option.


This is an important issue I think with the new Xorg which has no
monitor settings in xorg.conf, if the resolution that it defaults to
is wrong (or not what the user wants) there appears to be no user
friendly way of changing it.

-- 
Chris Green