I use a login list with faces and the icons and text are tiny in GDM. Is there an easy way to change the resolution of the login screen? I'm currently using 10.04 Lucid.
4 Answers
On newer systems, you will want to place your monitors.xml file into the gdm configuration directory, the resolution will be picked up there:
This, of course, assumes that you have gon into Settings > Displays, and have selected the resolution you want, click 'Apply', this will create a monitors.xml in .config of your home dir.
sudo cp ~/.config/monitors.xml /var/lib/gdm3/.config/monitors.xml
More details available at https://wiki.archlinux.org/index.php/GDM#Setup_default_monitor_settings
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6Thanks, this worked! I additionally ran
sudo chown gdm:gdm /var/lib/gdm3/.config/monitors.xml
Jun 15, 2018 at 12:40
Gaurav has the right solution for Ubuntu 10.10 (use "Make Default" in System > Preferences > Monitors), however this requires a bit more work in Ubuntu 10.04 LTS. It also means your GDM will have the same resolution as your desktop's.
First find out which resolution your display can take and what its name is. In the following example my laptop display is LVDS-1 and its rated resolution is 1280x800:
$ xrandr -q
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 4096 x 4096
LVDS-1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1280x800 60.1 +
1024x768 59.9*
800x600 59.9
640x480 59.4
720x400 59.6
640x400 60.0
640x350 59.8
VGA-1 connected (normal left inverted right x axis y axis)
1024x768 60.0
800x600 60.3 56.2
848x480 60.0
640x480 59.9
TV-1 connected (normal left inverted right x axis y axis)
720x576 50.0 +
1024x768 50.0
800x600 50.0
720x480 50.0
640x480 50.0
400x300 100.0
320x240 100.0
320x200 100.0
Note in the above output the resolution currently used is marked by an asterisk (*). Next you want to test if such resolution works and find the right command to set it up:
xrandr --output LVDS-1 --mode 800x600x32
In the above command you can change the depth (32 bit) for 24.
Next you want to add such command to the /etc/gdm/Init/Default file before /sbin/initctl ... [1]. The beginning of such file will look like this:
#!/bin/sh
# Stolen from the debian kdm setup, aren't I sneaky
# Plus a lot of fun stuff added
# -George
PATH="/usr/bin:$PATH"
OLD_IFS=$IFS
#if [ -x '/usr/bin/xsplash' ];
#then
# /usr/bin/xsplash --gdm-session --daemon
#fi
xrandr --output LVDS-1 --mode 800x600x32
/sbin/initctl -q emit login-session-start DISPLAY_MANAGER=gdm
Once you've done this you can logout to see the results. I tested this in a VM environment only but it should work on a standard install ("bare metal").
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Thanks, in my "what happened" answer. I was just stating a fact along with the recognition that I don't know exactly what changed in the xorg.conf file. MagicFab as I would expect your answer does offer the same results and I'll accept it unless someone has one that better qualifies as "easy". However can you give a really quick explanation of why it is better to use this method than the xorg.conf changes. If I was talking to someone who wasn't comfortable with the command line and had an Nvidia card I would still be tempted to send them the GUI route unless there is an unforeseen danger.– DennisNov 29, 2010 at 13:56
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The method I described should work for all graphic cards. The method described by Dennis works only with NVidia binary drivers, which come with the nVidia config tool which happens to generate / modify xorg.conf etc. - unless you want to dig into xorg.conf syntax, which is another option.– MagicFabDec 15, 2010 at 1:02
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I'm having the same problem as the OP in Natty, but this solution is ineffective. In fact I added a debug call to xrandr in the Init/Default script, and it logs the normal setting for the monitor, with 1366x768 resolution. Nevertheless, the login screen is stuck at 1024x768. I even added the monitor setting app to the login window setup, and it won't allow any resolution except the three "safe" ones (1024x768, 800x600, 640x480 I think).– PointyJul 2, 2011 at 13:21
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For 18.04 the answer below is the correct one. There is no
..initctl
line in the newer.../Init/Default
file Mar 19, 2018 at 15:19
OK for me the answer was in the xorg.conf file. I don't even know exactly what the pertinent lines are, but previously I didn't have a /etc/X11/xorg.conf file. Because I didn't want to screw anything up I didn't really investigate it. After installing a new video card and switching to the Nvidia binary drivers I used the configuration tool to change the screen resolution. However it was not persistent between logins so I tried the "Write settings to xorg.conf file" button. Next time I logged out the user login menu had the same resolution as all the other users screens. I'm sure this would be a problem if everyone wanted different resolutions but for me that isn't the case.
It can be a isolated problem with the current theme. Which theme you are using now in GDM? Did you check if you have the same problem with others themes?
You also can try to reconfigure your GDM using the commands (You will lose your X11 session doing so) below:
$ sudo dpkg-reconfigure gdm
$ sudo /etc/init.d/gdm restart .
You may need to run the gdmsetup (just works for Ubuntu before 2010):
- Press Alt + F2, type gdmsetup and press Enter (will open a desktop application).
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Latest ubuntu version are using a different gdmsetup tool. None of the current or previous gdmsetup tools allow you to change the resolution. Nov 13, 2010 at 15:32
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He did not have mentioned the Latest Ubuntu (he is using 10.04 Lucid). Anyway, gdmsetup is not useful... I'll fix my Answer. Thanks!– crncostaNov 13, 2010 at 19:20