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Manager (GDM) is a program which used to provide Ubuntu's graphical login screen until Ubuntu 11.10; since then it has been replaced by LightDM.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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15
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2answers
29k 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 ...
29
votes
5answers
16k 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 ...
2
votes
8answers
8k views

Resolution issue causing login screen loop

My ubuntu (version 10.10 I think) is stuck in loop at the login screen. Looks like it could be a resolution issue. - I have an nvidia graphics card (gs 8400). I previously had it connected to a 19" ...
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 ...
28
votes
1answer
8k 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 ...
45
votes
6answers
41k 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 ...
32
votes
6answers
298k 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 ...
18
votes
3answers
51k 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)?
25
votes
8answers
22k 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?
17
votes
3answers
14k 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.
8
votes
2answers
18k 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 ...
9
votes
1answer
32k views

How to change from GDM to LightDM?

I've upgraded to 12.04. My upgrade didn't go as expected; X crashed at the middle of the upgrade. I had to install many packages manually. This left me with a GDM login screen. How do I change from ...
66
votes
1answer
94k 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?
15
votes
6answers
61k 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: ...
11
votes
5answers
26k 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 ...
32
votes
3answers
40k 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 ...
5
votes
8answers
31k 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 ...
2
votes
0answers
903 views

Ubuntu Opens in Black Screen Using Lightdm But Working When Using GDM

Last time I installed lm-sensor (a package to know CPU Temperature) and restarted my system. $ sudo apt-get install lm-sensors $ sudo sensors-detect $ sudo service module-init-tools ...
18
votes
1answer
34k 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 ...
2
votes
1answer
13k views

lightdm doesn't start

Today when I started Ubuntu, it didn't start lightdm, showing a black screen. I changed to console Ctrl-Alt-F1 and tried to start lightdm manually sudo start lightdm It threw me to the graphic ...
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 ...
4
votes
1answer
2k views

How to configure splash screen after plymouth

I have configured my splash screen for plymouth - and it works perfectly. I've also configured the display manager (I'm using gdm). In between these two I get a very brief splash screen - a kind of ...
2
votes
1answer
8k views

gdm not working with Ubuntu 15.10

I just upgraded to 15.10, and everything went smoothly. One of the first things I did was install gnome-shell, and switch from lightdm to gdm. However, when I restarted, after an initial purple Ubuntu ...
8
votes
3answers
5k 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 ...
31
votes
5answers
2k 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?
5
votes
5answers
8k views

Ubuntu 13.04 - can't login to Unity, keep going back to login screen with all users

today I've updated openssl and libssl (automatic update). After reboot I can't login with any user (even with Guest or new one) into X. I've tried with installing gdm, gnome-session-fallback - no ...
5
votes
1answer
2k views

GDM session list borked

I must have done something especially stupid, but I observe the following behavior: When I start gdm, I see the "Warning: unable to load /etc/gdm/custom.conf: file not found" message. My GDM ...
2
votes
4answers
4k views

Changing the login screen design? [duplicate]

Possible Duplicate: How can I change the login screen theme? How do I change how the login screen looks in Ubuntu 11.04? I want to change both the background and the design of the grey ...
6
votes
3answers
23k 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.
3
votes
1answer
1k views

GDM killed on startup

In order to fix a sound issue, I'd completely removed all PulseAudio packages, which removed several additional packages which I hadn't kept track of. I have since added back several packages that ...
7
votes
1answer
11k 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 ...
6
votes
1answer
661 views

How do I set up automatic login?

How do I get 10.04 (Lucid) to log me in automatically on each reboot?
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 ...
4
votes
2answers
12k views

How to load graphical display manager when booting?

The thing is my Ubuntu 11.10 does not boot properly, each time I try to boot, the Ubuntu logo appears for a brief time, a very small loading happens, then a black screen appears with things like the ...
4
votes
6answers
22k views

GDM isn't able to login

The login screen shows and i choose myself. Then the screen goes black, and the login screen shows again.
3
votes
1answer
2k views

How do I make GDM use the upstream GNOME theme?

I have installed GNOME 3.4 And according to Gnome 3.4,when i reconfigure my display manager to GDM i should get a login screen like this- But when I reconfigure my display manager to GDM my ...
2
votes
2answers
2k views

Login screen problem, boots into text mode instead of GDM [closed]

I cannot enter to the normal Login interface. If I do it will enter into tty1 mode. I just can enter using recovery mode. How can I solve this problem? This happened 3 month before and after I just ...
1
vote
1answer
2k views

How do I get back the Unity login screen after installing gnome-core?

I installed gnome-core and now I have an ugly login screen. I want to reset or delete gnome-core and re-install the Unity login screen, or just switch back to LightDM. Is there any way to do it easily ...
0
votes
1answer
680 views

2.6.35-28 kernel update breaks Xorg [closed]

After I updated to 2.6.35-28, my Plymouth graphics still works, but when the system tries to launch X11 and GDM, the screen would flicker several times and it will fall back to TTY. In the TTY ...
7
votes
4answers
25k 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 ...
11
votes
6answers
121k 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?
22
votes
8answers
28k 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 starts ...
6
votes
4answers
9k 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 ...
2
votes
8answers
5k views

Keyboard layout reverts at every boot

I am using 12.10 with Gnome 3. I changed LightDM to GDM. When I boot up keyboard layout changes to default US layout. When I add another layout to end of list at Region settings my selected layout ...
9
votes
1answer
216 views

Set a different passwords for unlock and sudo [duplicate]

I am running a single-user Ubuntu install. When I enter the password to unlock my screen after suspend/timeout, it is the same password I use for sudo - my user password. Is there any way for me to ...
7
votes
0answers
1k views

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

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 ...
4
votes
1answer
73 views

How to make GDM have a limit of incorrect password attempts before action is taken?

I am currently running Ubuntu GNOME 15.10 with GNOME 3.18, though I used to (a long while back) run Windows 7, and though Ubuntu is better in most ways, there is still a feature lacking or at least a ...
3
votes
1answer
15k views

GNOME/GDM not starting

NOTE: While working through my issue and documenting it I discovered the solution, but have decided to post this in case another person has the same/similar issue (see bottom)... After uninstalling ...
5
votes
2answers
2k views

How can I enable screenlock without turning off the monitor? (Ubuntu Gnome 14.04)

Ubuntu Gnome 14.04 When locking the screen, my monitor/screen turns off immediately. I don't want that to happen immediately, more like after 30 minutes or so. Is that possible?
3
votes
1answer
2k views

How do I switch back to GDM and have it launch at boot?

So I got rid of Lightdm but how do I get GDM to launch at default. It hangs on "checking battery state" this is in virtual box if that matters. I want GDM login to load by default instead of me ...