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Manager (GDM) is a program which used to provide Ubuntu's graphical login screen until Ubuntu 11.10; since then it has been replaced by LightDM.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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4answers
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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: ...
3
votes
5answers
6k 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 ...
0
votes
0answers
15 views

ubuntu 12.04 falls back to login or no icons in gui [duplicate]

after hours of searching for solutions i am quite confused and frustrated now. None of the solutions here helped. This is what happend and what i did. Suddenly after days of offline the 12.04 ubuntu ...
1
vote
1answer
3k views

How to autostart synergy on ubunutu 14.04?

I am using synergy to share mouse and keyboard. I would like it to start automatically and have used the tutorial for this here. I am new to ubuntu and cannot find this menu: System Menu > ...
1
vote
1answer
227 views

Why does GDM start in TTY2 and TTY7

I have Ubuntu 15.04 and GNOME 3.16 installed. This PPAs are enabled: deb http://ppa.launchpad.net/gnome3-team/gnome3-staging/ubuntu vivid main deb http://ppa.launchpad.net/gnome3-team/gnome3/ubuntu ...
3
votes
1answer
7k views

Setting up the GDM Theme

I'm using Ubuntu 12.04 with Gnome Classic (no effects) and because of the fact that some system options have disappeared with the new system release I've been struggling with this for a while and ...
1
vote
1answer
38 views

“Your system is running in low graphics mode” error

I'm quite new to ubuntu. I recently downloaded pycharm for python development. The fonts on the pycharm editor looked broken, so I was googling for a fix. I stumbled upon this stackoverflow thread and ...
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0answers
24 views

Terminal GDM session

How would I create a session file so that when I login using GDM it just launches a terminal session (No windowing, just a plain terminal like in Ubuntu Server)?
4
votes
3answers
13k views

How I can change the GDM login screen wallpaper?

How I can change the GDM 3.6 Wallpaper? I dont mean the desktop background, but the Wallpaper at the login (GDM 3.6). Thanks Thank you for your answer, I know exactly what you mean. Recently I ...
5
votes
3answers
4k 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 ...
2
votes
1answer
1k views

Ubuntu freezes when gdm starts [closed]

I have Ubuntu 10.10 (upgraded from 10.04) I was browsing in Firefox yesterday, then the PC suddenly did a reset Once it restarted, everything went normal until gdm begun showing. Then everything ...
8
votes
5answers
71k 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?
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0answers
118 views

Black screen Ubuntu Gnome 14.04 Nvidia gtx 750

I have the problem that lately my pc only boots to a black screen. My system(Ubuntu 14.04 gnome) uses a gtx 750. I installed the Nvidia driver 346.47 by sudo apt-get install nvidia-346 I then ...
7
votes
4answers
21k 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 ...
13
votes
2answers
32k 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)?
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vote
0answers
98 views

Stuck at splash screen when changing to GDM

After considering it for a while, I finally decided to install GNOME onto my Ubuntu 14.04 system to give it a play and see if I it was worth switching to Ubuntu GNOME. Everything seems to be fine ...
0
votes
1answer
74 views

Login screen design / wallpaper does not work

I am using Ubuntu 14.04 but installed xubuntu-desktop afterwards. Now the login screen is very ugly: The theme is not applied and I cannot change the background picture (only black one shown) Only ...
0
votes
0answers
35 views

Unity is gone! And cannot get it back

Hello I have had a couple questions regarding my laptop and ubuntu. I managed to get the laptop working but now I think unity is gone (assuming that is what it's called) My question is different from ...
0
votes
0answers
177 views

Ubuntu Gnome fails at startup

I just install Ubuntu Gnome 14.10 on my laptop. It started just fine, and I installed updates by: $ sudo apt-get update $ sudo apt-get upgrade $ sudo reboot It's now stuck at Startup with following ...
0
votes
0answers
32 views

GDM and LightDM running at the same

I have a fresh install of Ubuntu 14.04 LTS. I have installed some GTK-related packages and GNOME but I am not using GNOME neither as my window manager, nor I want to use it as my display manager. I ...
0
votes
0answers
128 views

Can't login GNOME Ubuntu 14.04.1 64bit using GDM after some packages installation

First of all I checked some threads on GDM fail and found there NO solution to my problem. I have installed new GNOME Ubuntu 14.04.1 LTS 64bit. At this moment GDM works perfectly, and NVidia drivers ...
22
votes
5answers
233k 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 ...
0
votes
1answer
33 views

cannot interact with gnome

I am running Linux 14.04 with Gnome. My Laptop just spontaneously lost all ability to interact with gnome - no toolbar at the top, no icons on the left, work space switching does not work, and no ...
0
votes
1answer
53 views

Two Monitors, login does not show up - Ubuntu 14.04

I'm trying to use Ubuntu 14.04 on my PC. I have two monitors and an ATI Radeon HD 4770 Video Card. The thing is, after installing Ubuntu, and after reboot, the login screen does not show up, and the ...
1
vote
1answer
45 views

GDM without Accessibility Dialog

I would like to disable the accessibility icon on the top right corner of GDM. I tryed insert some keys at the gconf, but thoses commands gave me no results: gconftool --type Boolean --set ...
1
vote
1answer
83 views

Can't login from GDM

I've upgraded to Gnome on my Ubuntu desktop, however I have to login in with tty and run startx, but when the computer sleeps, I have the gnome login screen and it doesn't accept my tty password... ...
2
votes
1answer
9k 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 ...
0
votes
1answer
354 views

Changing X display manager

On my Ubuntu 14.04 there's gdm and lightdm installed. Is it recommended to have both installed? How can I check which one's active and how can I change them? I have some troubles with the Ubuntu ...
0
votes
2answers
98 views

Can't boot after installing gnome

I just installed gnome by typing sudo apt-get install gnome-shell, and used gdm as login shell and my PC can't boot. It stayed in purple screen with Ubuntu logo! What can I do?
0
votes
0answers
253 views

Ubuntu GNOME 14.04 NVIDIA drivers problem

I have an Acer Aspire 5755G with two video cards : one integrated (Intel) and one dedicated (NVIDIA GeForce GT 540M). I tried multiply ways to install various types of NVIDIA drivers, but everytime, ...
1
vote
1answer
749 views

How can I change the KDE lockscreen?

I want gdm, lightdm, something--anything--other than the default one in KDE. I'm not talking about the login manager or anything, that I have set to gdm. I'm talking about the lock screen with the ...
17
votes
1answer
27k 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 ...
0
votes
2answers
53 views

Ubuntu 11 display manager startup problem

Several days ago we had a power failure. When I rebooted my Ubuntu Linux box, it initially came up displaying the F in the center of the screen but never went to the login. Instead it goes to a black ...
0
votes
0answers
88 views

Need to type in password when I change to tty and back on 14.10

I just upgraded Ubuntu from 14.04 to 14.10. I use autologin for my user, gdm, and gnome. Recently, whenever I switch to tty and then back, it requires me to type in my password four times with a ...
0
votes
2answers
3k views

What to do when nothing seems to fix Ubuntu 14.10 stuck after log in?

So I run Ubuntu 14.10 on HP Pavilion g6, i5 and with Radeon HD6500. Yesterday Ubuntu crashed and since then I can't get anyfurther than the log in screen. Ubuntu simply stucks with only the background ...
2
votes
0answers
45 views

Cannot set system default Desktop Environment

I am using Ubuntu 14.04. Recently I completely uninstalled Unity and lightdm, and installed Gnome 3 with gdm. Now I can log into Gnome Desktop by selecting Gnome from log in screen. However, if I ...
0
votes
1answer
39 views

Boot does not go ahead Gnome icon

I'm using Ubuntu Gnome 14.04 LTS. Yesterday I uninstalled evolution and it's components using the command sudo apt-get remove evolution* which freed something around 40 MB data. After which I tried to ...
37
votes
7answers
31k 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 ...
0
votes
0answers
576 views

Several attempts to customize GDM login screen in Ubuntu 14.04 LTS failed. What are the ways to customize it?

I installed GDM on Ubuntu and set it as default via sudo apt-get install gdm. It looks like this( I took screenshots but can't trace where was it saved as it was not available in default directory ...
0
votes
0answers
21 views

exlude users from display manager [duplicate]

I just did a fresh installation of Ubuntu 14.04. To not break anything, I created the default user during install, but I neither need nor want it. I added my usual users (UIDs > 10000), which work ...
2
votes
1answer
143 views

How to enable autologin but still require password

I am running Ubuntu GNOME 14.04, using gdm display manager and gnome-shell environment and I need to achieve the following behaviour: after boot, a selected user is automatically logged in, but a ...
3
votes
2answers
320 views

Where is the login screen wallpaper for GDM stored?

In 14.04, there is a really nice sort of stone texture to the background of the login screen. Where does that texture live on the disk? I have searched the unity greeter packages.
0
votes
0answers
49 views

Problems with Ubuntu 14.04

I have some problems with my Ubuntu 14.04 installed on Lenovo think-pad t420 notebook. I'm using recent Nvidia drivers and gdm desktop manager with classical gnome theme. Periodically, my system stop ...
0
votes
0answers
22 views

How to reset Ubuntu boot up screen

after installing gdm, i cant right click on my desktop anymore and wallpaper changed to default(cant change) and the option menu when boot up is not orange but it is grey I searched for solution but ...
0
votes
0answers
56 views

Ubuntu 14.04 in vmware

I install ubuntu 14.04 in vmware 10. But it does not show graphical environment. When I run sudo startx, desktop that is shown has five parts (five duplicate desktop). sudo gdm and sudo lightdm does ...
1
vote
1answer
883 views

probleme with gdm

I have a problem with gdm , when I run this command sudo /etc/init.d/gdm start I got this message /etc/init.d/gdm: 79: /etc/init.d/gdm: syntax error: "fi" unexpected (expecting "}") So, can ...
0
votes
0answers
112 views

Changes Made in Dconf Editor don't take effect?

I am using Dconf to remove myself from the login screen by enabling disable-User-list in org.gnome.login-screen but that don't work. Also, I have tried changing the logo, no luck either. I have also ...
2
votes
2answers
843 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?
0
votes
0answers
44 views

How to create a custom failsafe session

I have created a custom session (in /usr/share/xessions/mysession.desktop). I don't want this session to be saved as a default session (don't want users to get the question "Do you want to use this as ...
0
votes
0answers
212 views

Howto force gdm to start unity by default for first time logged in user?

I was to try to do setup for maxi Ubuntu installation containing Gnome, Unity,KDE, Xfce, LXDE, Edubuntu,...Eclipse, Netbeans, ICD..., octave, QTOctave, Scilab/Xcos, Open Modelica,.... for a ...