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Manager (GDM) is a program which used to provide Ubuntu's graphical login screen until Ubuntu 11.10; since then it has been replaced by LightDM.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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16.04 - boot stops at "A start job is running for Hold until boot process finishes up(time/no limit)

I have ubuntu 16.04 LTS running on my Pentium E2180 , 1GB RAM computer, with a 120GB SSD. I had recently installed gnome-shell, to try it out , and I got an option asking me to choose between gdm3 and ...
8
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0answers
2k views

Software Center in Dark Theme Unreadable

So I am using the dark theme in gdm and the text in the software center is unreadable. I found a workaround by changing the font color from the .css as follows sudo gedit /usr/share/software-center/...
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1answer
66 views

Which display manager is used by default in Ubuntu GNOME 16.04?

I can't find this information, and while trying to install the nvidia drivers for my laptop, I got a message explaining that I had 2 display managers installed, and that seemed strange.
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0answers
22 views

Setting up GNOME 3 on Mint 17 [closed]

I've tried many times to get GNOME 3 work with my Mint. After a lot of complications and re-installations, I came here for help. I've a fresh install of Mint 17.3 and I would like to use Gnome. I've ...
2
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1answer
65 views

Smart lock like on Android?

Is it possible to configure either LightDM or GDM to automatically log in when my laptop is connected to a certain WiFi? Or even better, to check my location regardless of what WiFi I use?
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0answers
58 views

Ubuntu 14.04 login loop with lightdm and gdm black screen

I came to my computer a few days ago and found a login screen. Because I have bypassed the login screen in ubuntu settings, this was very strange. I tried logging in and found that I was in a login ...
23
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9answers
29k 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 ...
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1answer
337 views

Installing Nvidia Graphics drivers on Ubuntu-GNOME 16.04

I am using Ubntu-GNOME 16.04 with GNOME 3.20 When I install Nvidia graphic drivers by sudo apt-get install nvidia-361 , I am facing the following problems. During the installation of Nvidia-361, it ...
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0answers
13 views

Strange VC behavior since upgrade to 16.04

Ok, this is a puzzling thing, that I would like to understand. It seems that Virtual Consoles management is acting weird after the update from Ubuntu Gnome 14.04 to 16.04. Before, I did the login ...
4
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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 ...
0
votes
1answer
4k views

Log in fails and returns to log in screen

I am running a very nearly fresh Gnome version of 12.10, with no particular tweaks or customisation. I performed an upgrade yesterday using sudo apt-get update; sudo apt-get upgrade which completed ...
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0answers
33 views

lightdm gdm and slim

I don't have a login screen. Doing sudo service slim start brings me to a login screen which then turns blank. Essentially I do enter my credentials but apparently log into nothing. sudo service ...
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0answers
22 views

Lost virtual terminals + low graphics mode

First, I had low graphics mode. I logged into tty1 and realized that i had lost sudo as well. How any of this happened I have no idea. To take back sudo, I did following in root shell using grub ...
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0answers
38 views

Boot process stopped after installing gdm

I have installed gdm to replace lightdm, but after rebooting, I am greeted by a black screen. Switching to another TTY, shows me the following message: A start job is running for Hold until boot ...
20
votes
7answers
68k 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: ...
3
votes
1answer
4k views

Starting gdm (manually or during boot) doesn't do anything

At my wit's end here! I can't get gdm to run. Not just not at boot-time, but at all. There's no error message. tty7 stays blank. It doesn't seem to attempt to start an X server. It doesn't log ...
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0answers
205 views

Black screen after login Ubuntu Gnome 16.04

I had just updated to Ubuntu gnome 16.04 from 15.10. After reboot, I type password and click Login but just show a black screen, the desktop was not loaded. I just go to the desktop by type Ctrl+Alt+...
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0answers
22 views

Ubuntu virtual terminal exits too quickly for me to type

I've been having a nightmare trying to install an NVIDIA GPU on my desktop computer (Ubuntu 14.04). I inserted the card and tried following various instructions online, but that did not work and I got ...
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0answers
49 views

lightdm and gdm not working in Ubuntu 14.04

I have a problem with Ubuntu 14.04, the graphical mode can't started in the log screen : starting LightDM display manager [fail] then I tried to use gdm, starting gnome display manager fail, i don't ...
33
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6answers
307k 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 ...
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0answers
218 views

No graphical user interface after update on 16.04

After an update from Ubuntu GNOME 15.10 to 16.04 my gui completly crashes after GRUB. If I try a normal boot, the gui freezes there, where the LVM needs the password to decrypt the systemdrive. I can ...
1
vote
1answer
663 views

Set resolution for GDM on 15.04

All the current guides on setting the resolution at login are outdated. Most of them suggest using an xrandr command in /etc/gdm/init/default. Problem is, it doesn't seem to work in 15.04 because init....
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0answers
17 views

gdm session without setting default

I have a locally created session to let users login to a special session at times (i've called it /usr/share/xsessions/remote.desktop). The problem is that they normally login to gnome (/usr/share/...
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0answers
48 views

Can't login to my account with neither gdm nor lightdm

What I've tried: I am able to login as myself via tty I can login as guest (graphical) Installing gdm and using that instead of lightdm (see title) ~/.Xauthority is empty and owned by me. .xsession-...
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1answer
22 views

Gnome Terminal window is stuck on top but not really there

There is a terminal left floating on top of my other windows: It doesn't show if I take a window screenshot. I can't Alt + Drag - that drags the window below. I can't Alt + Tab - Terminal is not ...
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0answers
40 views

Gnome Displa settings (primary) on ubuntu 15.10

I installed gnome today to my ubuntu 15.10 and I noticed that when I try to make configurations, I cannot set my external monitor to primary display. When I try to change "External monitor to primary",...
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1answer
276 views

How to change login screen background Ubuntu Gnome 15.10

I'm using Ubuntu Gnome 15.10 and my gdm version is 3.16.2. I know that there are a few different threads here and articles at other websites about customizing the login screen in Ubuntu older version,...
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4answers
17k 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 ...
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0answers
41 views

Ubuntu 15.10 Gnome Desktop Stucks At Loading Splashscreen

Upon trying to boot Ubuntu 15.10 as usual I found it was impossible to load pass the loading splashcreen, my default desktop environment is GNOME and upon some research I have tried several approaches ...
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0answers
126 views

Windows always open very small and in top-left corner of screen, even when full-screen

I'm a very new Gnome-desktop/X developer, so please be kind! We develop a "kiosk" style digital signage product that I'm porting over to Ubuntu from CentOS-6/Gnome-2 and CentOS-7/Gnome-3. The basic ...
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0answers
46 views

LightDm fail - I can't get the login screen - Some packages can not be installed Depends libcheese7 and libcheese-gtk23

I can not get the login screen. I have tried the suggestions given in the forums, such as uninstall lightDm or gdm and install again, but it does not work. I get the following message when I try to ...
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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" ...
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0answers
75 views

Is there a way to use a text-based login screen, instead of clicking on usernames?

I'd rather type my username in to login than click on it. I can't, however, find a way to configure which usernames are displayed on the login screen. What's the best way to go about this? I'm using ...
0
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0answers
23 views

I can't stop starting gdm with rcconf tool why?

I can't stop starting gdm with rcconf tool why? In rcconf tool it is unselected but still starting gdm after reboot? I don't know why... it is ubuntu 14.04 server amd64 Please help me
0
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2answers
281 views

15.10 lightdm broken - gdm works

After some updates to my system lightdm seems to be broken (can't get a session with lightdm to work, always ending up in low graphics mode at boot). If I chose gdm it however works. But I would like ...
3
votes
2answers
247 views

Email on failed login attempt?

I was wondering if it is possible to set it up in such a way that on a failed login Ubuntu will send me an email? And of course if the computer is not connected to the internet when the attempt occurs,...
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0answers
40 views

How to fix Ubuntu from logging into weird “simple GNOME” as I call it

I was trying to fix ubuntu because the wifi was not working. It wouldn't allow me to control networking, and it said I had no privileges to so this. Lately, most of the stuff on my ubuntu OS screwed ...
2
votes
0answers
165 views

Can't logout if autologin is enabled on ubuntu 15.04

When I try to logout, this screen appears. I can login again by restarting gdm (version 3.16.1.1) from a TTY. I'm running gnome 3.16.3 but I tried on Unity and it's the same problem. Last line: ...
2
votes
1answer
187 views

Stuck on splash screen, does not progress to login manager

My login manager stopped loading, for no apparent reason, instead tty7 was a black screen I could type into but with no effect. I tried several variations of service lightdm restart service sddm ...
3
votes
1answer
166 views

gdm/lightdm: can't login, but startx works

I just ran apt dist-upgrade. I had ubuntu 14.04. Things went smoothly, but after reboot I can't get past the login screen. I tried both GDM and lightDM, but running startx from the terminal works. ...
0
votes
0answers
22 views

can't change from gdm and monitor swaps after login

I ran updates yesterday. This morning, the login screen had changed from lightdm to gdm (i think) and three seconds later the screen went blank. I couldn't even get to ctrl alt f1 terminal. I did a ...
0
votes
0answers
129 views

GDM not starting after installing GNOME 3 on Ubuntu Server 15.10

First thing after installing Ubuntu Server 15.10, I got all the updates and installed GNOME 3.16.4: sudo apt-get update sudo apt-get upgrade sudo apt-get install gnome-shell But after a reboot I ...
0
votes
1answer
39 views

How to switch off gdm?

Because after update - gnome and gdm are not working, and I need to switch off gdm as display-manager. Now am logged in with bodhi-linux ... how can I disable gdm for to log in into ubuntu to proceed ...
0
votes
0answers
65 views

Lightdm is giving me “The system is running in low-graphics mode”

I was trying macbuntu on Ubuntu 15.10 and due to some bug in it, i wasn't able to login into the system as login screen was coming again and again even after feeding in the right password. So, i ...
45
votes
6answers
42k 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 ...
9
votes
1answer
34k 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 ...
2
votes
0answers
235 views

Change the login screen theme in Ubuntu Gnome 14.04

Can anyone show me a way to change the default login screen theme with the ones available at http://www.gnome-look.org ? For eg, this http://gnome-look.org/content/show.php/HexLogin?content=169840 ...
1
vote
1answer
47 views

Why am I getting gdm and a bunch of packages in the list of apt-get autoremove?

Of late, I've done a lot of configuration changes on my Trusty laptop (14.04 LTS). Firstly, I installed gnome-shell, did all updates and migrated to the LTS enablement stack. After that, I added the ...
0
votes
0answers
51 views

Cannot update /var/lib/gdm/.ICEauthority after restoring /var directory

I have tried the following for getting this error fixed. Boot into "Recovery Mode". Input the root password for maintenance mode. Go to the /var/lib/gdm folder (cd /var/lib/gdm). Remove the ....
21
votes
3answers
55k 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)?