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Manager (GDM) is a program which used to provide Ubuntu's graphical login screen until Ubuntu 11.10; since then it has been replaced by LightDM.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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1answer
15 views

Gdm with nvidia-331 and nvidia-prime causes a black screen at boot

I'm on an Asus UX51vz laptop, which has RAID0 SSD's and an nvidia 650M graphics card. I installed lubuntu instead of ubuntu-gnome because lubuntu still has a RAID0 compatible alternate install ISO. ...
0
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0answers
25 views

Stuck at “starting version 219” on Ubuntu Gnome 15.04

I know this question has been asked before, but I have tried the solutions, and they have not worked. First, I found this website about it. I tried the solution it gave: sudo systemctl enable ...
0
votes
1answer
16 views

gdm subprocess paste was killed by signal (Broken pipe)

root@saimon-System-Product-Name:~# dpkg --install /home/saimon/Downloads/gdm-2.20_2.20.10-0ubuntu3_i386.deb (Reading database ... 165751 files and directories currently installed.) Preparing to ...
0
votes
3answers
475 views

Cannot Log In to Gnome 3.16 Dekstop

I have installed Gnome 3.16 on my Ubuntu 15.04 (previously updated from 14.04) via: sudo add-apt-repository ppa:gnome3-team/gnome3 sudo add-apt-repository ppa:gnome3-team/gnome3-staging sudo apt-get ...
4
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 ...
0
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0answers
14 views

Ubuntu 14.04 GDM Login Banner, with User List Disabled

I've seen several posts and absolutely no replies (or rather few helpful ones -- even seen a few stating to "use LightDM") on this issue. We use GDM instead of LightDM due to a bug/feature in LightDM ...
3
votes
1answer
177 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 ...
0
votes
2answers
23 views

There isn't /etc/gdm/gdm.schema

I read some guides on GDM (I want to create an invisible user in GDM login screen) but they refers to a file called /etc/gdm/gdm.schema that there isn't on my computer. This is the content of my ...
2
votes
1answer
29 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 ...
0
votes
1answer
59 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 ...
0
votes
1answer
19 views

GDM does not display session, or top row icons

I switched recently to the Gnome desktop environment. I was running Xubuntu, but got fed up with the bugs so decided to install Gnome-Shell. All was fine until I removed Xubunt and Xfce in an attempt ...
1
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0answers
16 views

My sudoer can not login using GUI

I only have one sudoer and it can login into the terminal or through GUI terminal. But I can not use it to log into the GDM login screen. Any possible causes?
0
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0answers
36 views

Login Loop on lightdm but not gdm

One of my user accounts is getting a login loop on lightdm but not on gdm. Does anyone know why this might happen and what I may be able to do to log on to the account using the lightdm display ...
1
vote
0answers
25 views

Black Screen after login

Hello guys i just installed ubuntu 14.04 and i had a hard time full of problems anyways as i thought problems had finished i restarted after update of software and tried to login but i had a black ...
0
votes
0answers
55 views

gdm login screen orientation Ubuntu GNOME

I use Ubuntu GNOME 15.04, and probably this issue can be applied to 14.04 and 14.10, too. I use Ubuntu Gnome with vertical orientation for the screen since my device is often used for tablet (Surface ...
2
votes
3answers
4k views

GDM and Lightdm don't work after update; KDM is ok

After updating Ubuntu (apt-get update, apt-get upgrade and apt-get dist-upgrade) last Tuesday, GDM stopped working, and the startup hangs on the Ubuntu logo. Lightdm also don't work (same happens). If ...
0
votes
1answer
387 views

LightDM and GDM login loop. Ubuntu 15.04 Gnome 3

At first the GDM worked just fine but all of a sudden I lost the ability to login. I can still get to my desktop using startx (sound doesn't seem to work when I do that but it might be a by-product of ...
0
votes
0answers
31 views

Problem with running full screen apps in gnome shell with wine

I've an ubuntu 14.04 with gnome shell, gdm, wine1.6. Some apps doesn't start after launching just turning into minimized mode. If I click on the icon around 100 times the app starts(but it's ...
2
votes
0answers
43 views

Set a different password for unlock to my sudo password

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 ...
8
votes
4answers
37k 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: ...
2
votes
5answers
7k 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
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0answers
16 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 > ...
2
votes
1answer
316 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 ...
1
vote
1answer
67 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 ...
1
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0answers
42 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)?
5
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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 ...
10
votes
5answers
80k 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?
0
votes
0answers
160 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
22k 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 ...
14
votes
2answers
35k 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)?
1
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0answers
142 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
98 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
44 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
311 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
43 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
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0answers
166 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 ...
23
votes
5answers
245k 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
37 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
73 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
65 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
159 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
887 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
169 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
274 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
850 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
28k 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 ...