[SOLVED] change screen resolution at login prompt

sumeet inani · 12-11-2009, 09:15 AM

hi I am using ubuntu 8.04.
At login prompt my screen resolution is 1024x768 which makes letters look so small how can I change it 800x600.In my user account I have set it to 800x600 using system>preferences>screen resolution.

jiobo · 12-11-2009, 03:36 PM

You could try a kernel boot parameter. Perhaps "vga=0x314", but it will depend on what your kernel has built into it.

sumeet inani · 12-13-2009, 11:02 PM

I tried the option by editing kernel line in GRUB but still login prompt still has resolution of 1024x768.this option of 'vga=0x314' is for screen during booting i.e when you see OS logo but login prompt appears after that.
I think somebody told me to edit X configuration file.Can you tell what is exact file name with absolute path address?

sumeet inani · 12-14-2009, 08:06 AM

As I was saying that I want that login prompt should have screen resolution 800x600 & giving parameter to kernel does not work.Does anybody know about which X configuration file to edit ?

cola · 12-14-2009, 08:44 AM

Quote:

Originally Posted by sumeet inani

As I was saying that I want that login prompt should have screen resolution 800x600 & giving parameter to kernel does not work.Does anybody know about which X configuration file to edit ?

Is there any file named xorg.conf in /etc/X11 ?
If it it post cat /etc/X11/xorg.conf.

cola · 12-14-2009, 08:46 AM

Quote:

Originally Posted by sumeet inani

As I was saying that I want that login prompt should have screen resolution 800x600 & giving parameter to kernel does not work.Does anybody know about which X configuration file to edit ?

You can get information from here:
http://ubuntuforums.org/showpost.php...9&postcount=21

sumeet inani · 12-15-2009, 01:42 AM

Here is my /etc/X11/xorg.conf

Code:

# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc105"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
EndSection

Section "Device"
	Identifier	"Configured Video Device"
EndSection

Section "Monitor"
	Identifier	"Configured Monitor"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Monitor		"Configured Monitor"
	Device		"Configured Video Device"
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
EndSection

I read the link it says to append output of to monitor section
gtf 800 600 60
But do I have to comment the lines in monitor section ?

sumeet inani · 12-17-2009, 04:57 AM

Hi,
I have posted my /etc/x11/xorg.conf.Now can anybody suggest lines to be edited for 800x600 resolution at login prompt in GNOME ?

sumeet inani · 12-31-2009, 08:18 AM

NOTE:-i have similiar post in thread for ion3
this is for benefit of other users
Changing GDM resolution
I added following line in /etc/gdm/Init/Default
xrandr --output VGA --mode 640x480
before the line
sysmodmap...(something something)
Changing ion3 resolution
i have noticed that if i select in ubuntu my screen resolution as 800x600 then no effect of editing xrandr line in ~/.xinit.
But the line in .xinit helps if you use ion3 window manager.
i also think metacity is window manager of GNOME.
am i right ?
find current screen resolution
run

Code:

xdpyinfo | grep -i 'dimension'
Or
xrandr | grep '*'

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