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

Chris G cl at isbd.net
Mon Oct 13 21:08:55 UTC 2008


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
> 
displayconfig-gtk isn't available for 8.10 as far as I can see.#

> 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
> 
> Test that first (logout/login), and then you may also wish to modify the
> depth settings as well depending upon what grapic card you have - I've
> found on certain Intel & ATI cards, setting to 16 instead of 24 enables
> dri and speeds up my glxgears on those cards by a factor of about 2.
> 
> 
> -- 
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> 

-- 
Chris Green




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