GNOME Display Manager (GDM) is a program which used to provide Ubuntu's graphical login screen until Ubuntu 11.10; since then it has been replaced by LightDM. You may still install it manually if you prefer, however.

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51
votes
2answers
62k views

What's the difference between GDM and LightDM?

What is the difference between GDM and LightDM? How can one switch between them. I mean if I have selected LightDM during installation process, will I be able switch to GDM?
37
votes
7answers
26k views

How to hide users from the GDM login screen?

I have recently added several new users, that I need for qmail. Now they appear in the box in the login screen and clutter it, and I have to scroll to find my user. How can I hide those users from the ...
29
votes
5answers
1k views

How can I change the order of the users in the login screen?

I have several user accounts on a machine my mother uses most of the time. How can I sort the users so that her account shows up first in the list?
26
votes
5answers
11k views

How to make the lock screen look like the login screen?

Is there any way to make the login screen from a locked session (either by using Ctrl+Alt+L or from a screen timeout) look like the login screen when you're starting a new session? I hate that ...
25
votes
1answer
6k views

How do I replace the desktop by an application?

Sometimes it may be needed that a user only has access to a certain application. Running the desktop environment then may be unwanted be it either for security reasons or for acchieving a better ...
21
votes
3answers
17k views

Multi display issue with Ubuntu GNOME 14.04 [closed]

Fresh install of Ubuntu GNOME 14.04 with 3 displays (fglrx driver). I can correct the screens order in System Settings / Display but it is not saved when I close the session and reopen it. Screens ...
21
votes
8answers
11k views

How can I change the login screen theme in GDM?

How can I change the Login screen theme? Is there a graphical way or no?
19
votes
8answers
23k views

How do I disable GDM and Graphical User Selection?

The new Ubuntu features a completely unkillable gdm. Is there a way to disable it? It is not enabled in services , the gdm startup script is deleted , it is removed from 'update.rc' but it still ...
17
votes
5answers
204k views

How does one exit the X server?

The command sudo service gdm stop would successfully disable the X server in Ubuntu 11.04 temporarily. However, this same command no longer works in Ubuntu 11.10, because "gdm" is an "unrecognized ...
17
votes
3answers
13k views

How to get the GNOME 3 login manager installed?

I was wondering if it is possible to get the GNOME 3.2 GDM login theme working on Ubuntu 11.10. I installed GDM alongside LightDM, but the GDM greeter is really ugly.
16
votes
1answer
24k views

How do I make GDM the default display manager?

I believe my question says what I am trying to achieve. Steps I tried to make gdm my default display manager: sudo dpkg-reconfigure than select gdm as my default. Edit ...
13
votes
2answers
27k views

How do I switch from LightDM to GDM?

How do I switch from the default display manager (Lightdm) to the older display manager (GDM)?
10
votes
1answer
861 views

Why use a Display manager?

I'm currently trying to free as much memory as possibile because I'm using my laptop for scientific simulations. One of the things I made is disable gdm and using login+startx to start GNOME session. ...
10
votes
6answers
6k views

Force gdm login screen to the primary monitor

I have two monitors attached to my video card. Primary monitor has a resolution equal to 1280x1024 and the second has 1920x1200. My gdm login screen always appears on the second monitor even if it is ...
10
votes
0answers
5k views

How to disable login sound? [duplicate]

Possible Duplicate: How do I disable the drum beat sound on the login screen? How do I disable the login sound? I have tried all guides on the internet I can find, but they are for ...
8
votes
4answers
23k views

How to install the full GNOME desktop as close to upstream as possible?

Just like the title says. I don't want just Gnome Shell I want to know how to install the whole entire desktop, with the latest GDM(not the 3.0.4 currently in the repos), all the default apps, all of ...
8
votes
3answers
3k views

How can I remove “Ubuntu Netbook Edition” option from the GDM session menu?

I was trying out Unity and then I uninstalled it but there is still an Ubuntu Netbook Edition option in the GDM session list. Accidentally clicking on that causes the user to log in to a broken ...
8
votes
1answer
2k views

How can I set the clock to 24 hour mode? [closed]

How can I set the clock to global (24h time) in Maverick instead of am/pm? Including the login screen? I mean there's no option to do that in rclick clock > preferences or in system > admin > time ...
8
votes
2answers
14k views

How can I replace LightDM with MDM?

Linux Mint Cinnamon 1.4 released with "MDM display manager". It is based on the code of GDM2.20. It provides: Graphical configuration tools Themeability Remote, automatic and timed login Event ...
8
votes
3answers
4k views

Starting a guest session from the login screen

I was wondering what is the best way to start the guest session from the login screen (GDM). Currently, I created a new user called 'ubuntu-guest' (has to be something other than 'guest'). Then added ...
7
votes
4answers
19k views

How to disable GDM from being automatically started?

After Ubuntu Server 12.04 installation, I installed Xubuntu just to have a minimal GUI: sudo apt-get install x-window-system-core sudo apt-get install --no-install-recommends xubuntu-desktop gparted ...
7
votes
2answers
18k views

Remote login with graphical display manager (GDM, LightDM)

Is it possible to remotely (via ssh) make a login to GDM? I'll explain a situation in which I'd need this: I'm on my laptop and connect to my desktop via ssh. I realize there are some updates ...
7
votes
1answer
48k views

Which display manager should I use? LightDM or GDM? [duplicate]

Possible Duplicate: What’s the difference between GDM and LightDM? I'm a somewhat experienced noob on this Linux-thing. I'm growing quite familiar with Ubuntu and I just love Gnome(3+). ...
7
votes
1answer
3k views

How do you add a new window manager to the gdm menu?

So, I've been having trouble finding a definitive answer on how to do this. I've compiled and installed a window manager that is not available in the ubuntu package repositories, and now I'm ...
7
votes
1answer
591 views

Can I control which session I want to login at Grub loading?

Is there a way by which I can choose if I want to login to ubuntu(unity) or ubuntu classic at grub loading it self. I have autologin enabled and I want to choose the session at the starting. Or is ...
7
votes
3answers
1k views

GDM locale problems

I have two problems with GDM on Ubuntu 10.04. The first is with locales. In my system I have defined: $ cat /etc/environment ...
6
votes
3answers
7k views

How do I recover when Compiz crashes?

Often compiz will crash and leave the keyboard useless. Normally I drop to the console and restart GDM. Is there a solution where I can start Compiz back up without losing everything in the current ...
6
votes
2answers
646 views

Is there a way to replace kdm with gdm?

Well i tried kubuntu not long ago , didnt liked it and purged it from my system, except one thing, I still have the kde login screen, is there anyway to get my gnome login screen back?
6
votes
1answer
324 views

GDM causes freeze on a remote login server. (over 5,000 users)

I run an ubuntu FTP server in the company I work for, and we recently migrated over 5,000 customers to it. I created a jailed user / home folder for each customer and everything was running smoothly ...
6
votes
3answers
2k views

Booting to gnome by default

I'm currently playing with virtualbox and just installed ubuntu-minimal. I then proceeded to install gnome-core. After reinstalling, I rebooted but I'm taken back to the CLI. How do I load gnome when ...
6
votes
3answers
2k views

On screen keyboard malfunctioning on login screen

The problem is the login screen is divided into two showing a onscreen keyboard like thing in the left side and the same magnified in the other side. Also it is giving the error message as ...
6
votes
1answer
1k views

What's the state of multi-seat in 10.04 Lucid?

Ubuntu used to support multiseat (that is multiple monitors, multiple keyboards and mice, all hanging off a single computer) pretty well once upon a time. Support wasn't an official feature but gdm ...
6
votes
2answers
11k views

Replace xscreensaver With gnome-screensaver (Xubuntu)

I have recently apt-get remove'd xscreensaver and apt-get install'd gnome-screensaver. This appears not to have worked because when I press the Lock Screen menu item, nothing happens. I have tried ...
6
votes
2answers
972 views

Where is the order of names in gdm login screen stored? [duplicate]

Possible Duplicate: How can I change the order of the users in the login screen? Where is the users' login history stored that governs the order in which the users' names appear in the ...
6
votes
3answers
19k views

How to change the screen resolution for the GDM login screen?

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.
6
votes
3answers
347 views

Why I have to wait some seconds before I can input my password on login?

When on login I click on the user, immediately shows password field but before I can type it I have to wait some seconds, sometimes even 5! I don't see this problem on other computers that I have, ...
6
votes
1answer
868 views

How to set up two Gnome sessions to start automatically

Is it possible to set up two different Gnome sessions to be started at boot time? As it is now (and by default in any Ubuntu installation) a gdm login screen is presented after a few minutes of ...
6
votes
2answers
1k views

What login screen program will 11.04 use?

Will Ubuntu continue using that old (GNOME 2.X) login screen, or create its own, or there will be a new one in Gnome 3?
5
votes
5answers
48k views

How do I kill the x-server?

Every time I try to kill the x-server, sudo service lightdm stop so that I can install the latest Nvidia drivers, I get an error message. stop: Unknown instance: What am I doing wrong?
5
votes
8answers
24k views

12.04 hangs at “checking battery state”

My 12.04 system hangs at "Checking battery state". At this stage, no commands work eg: Ctrl+Alt+f1, or Alt+f5. I ran recovery mode, and ran the following commands: sudo mount -o remount, rw / sudo ...
5
votes
2answers
3k views

How can I make a script run automatically after gdm login and logout?

I have a setup where my users log on using ldap and it works just fine. I want to run a script after my users login (its a script that will detect which groups they are in and map network shares ...
5
votes
3answers
26k views

How to restart only missing/invisible mouse pointer/cursor?

For some reason, the mouse pointer on my Ubuntu 10.04 PC disappears after the computer is woken up from suspend. That PC is missing a keyboard, so I can fix this by logging via ssh, and issuing: ...
5
votes
4answers
3k views

Takes forever to login?

After upgrading to 10.04, Ubuntu takes a long time (1-2 minutes) to login after typing the credentials. The majority of this time the dialog box says "checking credentials". How do I even go about ...
5
votes
1answer
414 views

How do I set up automatic login?

How do I get 10.04 (Lucid) to log me in automatically on each reboot?
5
votes
1answer
8k views

Disable auto-login from the CLI

After successfully installing Ubuntu and logging in to the Unity desktop, I followed the prompts to enable the proprietary display drivers. After rebooting, the Unity desktop is now entirely ...
5
votes
2answers
7k views

How to use XDMCP+GDM and Xnest?

I have been trying to enable XDMCP on GDM without much success. Following some instructions I have edited /etc/gdm/custom.conf and added: [daemon] RemoteGreeter=/usr/lib/gdm/gdm-xdmcp-chooser-slave ...
5
votes
2answers
1k views

How to install Awesome WM without root access?

I want to install the Awesome window manager. In the environment where I want to configure it I don't have root access. I do have a machine were I can be root (I use for this a virtual machine in my ...
5
votes
3answers
1k views

Make GDM accessible only remotely via XDMCP, while console remains in text mode

I have a 10.04 server and I have installed gnome-desktop on it so that I can do some of work in a nicer way. I connect to gdm remotely via XDMCP (Hummingbird Exceed) but at the same time I want the ...
5
votes
2answers
1k views

Hangs on Splash Screen after login (auto-login), how can I fix this?

Computer: Toshiba Terca A4 OS: Ubuntu Desktop 10.10 After installing 10.10, the splash screen hangs and the mouse pointer appears. Anyone know what I can do to fix this? ~/.xsession-errors has ...
4
votes
2answers
1k views

Can't seem to get my login screen back after installing slim

At one point I switched from GDM to slim and now I can't seem to get past the splash screen. After pressing Esc I can see that it is stuck on Starting X Display Manager: Slim. I need to get back to ...