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Manager (GDM) is a program which used to provide Ubuntu's graphical login screen until Ubuntu 11.10; since then it has been replaced by LightDM.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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Can I apply a GTK+ theme to the latest version of GDM? if so, how? (specific to ubuntu 16.04)

I installed Ubuntu GNOME 16.04 LTS and I'm having trouble trying to figure out how to apply a GTK theme to GDM. In my searches for an answer I have seen a couple of times that GDM has discontinued ...
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26 views

Stuck at gdm login loop after failed boot and fsck

So I must've power off my laptop the hard way yesterday when I was in a rush. After trying to boot it today, it popped up with Ash (or whatever it is called - the prompt was: initramfs$ or something ...
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17 views

Dark Themed status bar

Status bar has got a dark theme(Screenshot attatched).I installed kubuntu desktop. Then I removed it along with all other files. Also, i restarted lightdm. Did'nt work out. Then I removed lightdm and ...
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38 views

Ubuntu 16.04 (64bit, Unity 7.4.0) stucks in splash screen after enabled gdm3

I am trying to set gdm display manager on fresh install of Ubuntu 16.04 with unity 7.4.0 Installed and enabled gdm: sudo apt-get install gdm sudo dpkg-reconfigure gdm After reboot PC stucks in ...
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1answer
111 views

How to set unity as default after installing ubuntu-gnome-desktop in Ubuntu 16.04?

Recently I installed gnome-desktop in my Unity Ubuntu 16.04.Now I want to set my Unity desktop environment as default. I installed Gnome by using these commands : sudo apt-get install ubuntu-gnome-...
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2answers
609 views

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 ...
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1answer
191 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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109 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 ...
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19 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 ...
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37 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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25 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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1answer
508 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
43 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 ...
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23 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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61 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 ...
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321 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 ...
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252 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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18 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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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
29 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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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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342 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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42 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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151 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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51 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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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
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79 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 ...
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41 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 ...
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1answer
182 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. ...
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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 ...
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140 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 ...
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1answer
40 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 ...
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66 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 ...
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2answers
284 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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1answer
50 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 ...
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264 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 ...
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57 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 ....
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132 views

Cannot make it to login (gdm/lightdm bugs) after Nvidia driver update tentative

I used my girlfriend's computer which runs on Ubuntu 15.10 (wily) and wanted to update the Nvidia GPU. I did install the last driver released on the Nvidia website corresponding to this Geforce GT720. ...
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87 views

Ubuntu 15.10 Alt Above Tab shortcut for Guake

I can't get Guake to use <Alt>Above_Tab (or "`", or sometimes called tilde?) for hide/show shortcut. I first disabled the original actions of both <Super>Above_Tab and <Alt> ...
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1answer
115 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 ...
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2answers
535 views

Ubuntu 14.04 stuck in login loop after update, nothing seems to help

I updated my ubuntu 14.04 after it was being unused for 4 months. The updating took enormously longer time than usual, and after that the computer was very slow. I rebooted the computer and now I ...
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44 views

Won't suspend-screen locks with black screen and cursor

When I leave my computer alone and the screen blanks after X minutes. Then instead of going fully blank, then suspending after the set time I'm left with a black screen with my cursor. If I touch the ...
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2answers
308 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 ...
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171 views

Using i3wm on Ubuntu Gnome 15.10

I am having trouble figuring out how to use i3wm on my installation of Ubuntu Gnome 15.10. The only way I've got it working was through stopping gdm with systemctl stop gdm in text-only mode, and then ...
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94 views

Desktop not responsive after ubuntu-gnome-desktop installation (Ubuntu 15.10)

In order to use gdm instead of lightdm I followed the instructions from this post I could then use gdm but my desktop (meaning the background area) is not responsive anymore and shows the login ...
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1answer
220 views

Two different login/lock screens

I have Ubuntu 15.10 installed and when I first start my computer it gives me the really nice looking ubuntu lightdm login screen but anytime I lock the computer I get the really nasty looking gnome ...
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101 views

How do I disable GDM's automatic screen locking *after a virtual terminal (VT) change*? It's too buggy and never works correctly

Every so often either my touchpad stops behaving or some program (Firefox or QEMU) freezes my system and I have to switch to a virtual terminal to fix it (merely switching to a VT and back fixes the ...
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13 views

how do I stop gdmdisplay

I am getting about 65000 log entries per hour from gdm. it generates the standard message: WARNING: GdmDisplay: display lasted 0.050808 seconds We do not use gnome on this machine and I want to get ...
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2answers
95 views

How to make 4 equally sized windows in corners of screen in GDM?

I recently saw this answer to a great question, and I wondered, is this also possible on Ubuntu GNOME 15.10 with GNOME 3.18 and GDM, as well as on Compiz as the answer to that question shows? But the ...
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97 views

Lightdm not working properly in Ubuntu 14.04.3

Recently I installed ubuntu-gnome desktop and then purged the same after trying and I have chosen my default desktop manager as lightdm and there is nothing like gdm as I have purged it also.The ...