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Manager (GDM) is a program which used to provide Ubuntu's graphical login screen until Ubuntu 11.10; since then it has been replaced by LightDM.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

How to make gnome-shell the default GUI in ubuntu-builder?

I'm making my own distro with Ubuntu builder and I want to make Gnome-shell the main GUI. I tried many things like removing Unity and using GDM and a whole bunch of other things but I keep getting a ...
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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 ...
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94 views

Display issue on remote machine using GDM X11

I am remotely logging into an Ubuntu machine through SSH(MobaXterm) using Gnome desktop remote environment from my Windows PC. I am having trouble with one of our video applications in displaying ...
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185 views

How to end X session?

Is there a generic way to orderly end X session regardless of display mangager or window manager? More specifically, I use different windows managers for different users, and after reboot one user ...
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888 views

cannot click in some windows, ubuntu 13.04 64bit

EDIT: I tryed both, lightdm and gdm. ''sudo restart lightdm'' helps temporarly. I cannot click in firefox until I start something else e.g. shell. But than the mouse cannot click anything outside ...
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190 views

Getting a blue wallpaper screen with no desktop bars

I just got a linus VPS after like 6-7 months. I installed a clean copy of 11.10, and then used this tutorial to install ubuntu-desktop and get a VNC connection going: ...
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1k views

GNOME Display Manager fails to load on startup

I have installed gnome on my ubuntu 12.10. When i installed it, it initially worked fine for first two times but after that whenever i boot, it fails to start the display manager. The screen turns ...
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603 views

Is there a way to use LightDM and Unity but get a lock screen like GDM in 12.10?

I like the GDM locked screen theme a lot! But even if i set GDM as the Display Manager but log in to Unity session,the lock screen remains that oh LightDM... I want to use LightDM as my login Display ...
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529 views

Problems with both LightDM and GDM using DisplayLink USB monitor

When I use LightDM, it will auto-login to desktop just fine. The only problem is Compiz doesn't work, and menus don't work. I can't right-click the desktop, and I can't select program menus in the top ...
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23 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 ...
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88 views

Ubuntu 12.04 freezes when switching to lightdm

I was changing the theme in my Ubuntu 12.04 to Mac OS theme, constantly installing, logging in and out, rebooting when trying to fix things along the way. While I was doing a reboot, it froze, for the ...
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924 views

14.04 Trusty Tahr LIghtDM No way to switch session

I installed Trusty on my laptop. I like Gnome Shell more than Unity. So I installed Gnome Shell via Software Centre. I have LightDM 1.10.0 installed on my system. Unlike the previous version it ...
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1k views

Blank screen when trying to connect to VNC

I've installed on my VPS machine VNC-GNOME to remote access the graphical system so I've my Ubuntu (V 13.10) and I did this steps but I'm getting blank screen every time I'm trying to login This is ...
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24 views

New windows open below visible one

Every time a new window is opened, gnome likes to force it below the current one so I have to go to the taskbar and restore it. I can tolerate a lot of stuff but I open new windows way too often ...
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137 views

Can't load GDM or Gnome

I've been using Ubuntu Gnome 13.10 for about 2 weeks without issue, but today, after restarting my PC, it got stuck on the Gnome splash screen. I managed to load my login screen by switching to ...
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672 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 ...
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276 views

OAFIID:GNOME_FastUserSwitchApplet Error

I recently lost my GNOME desktop manager after uninstalling PulseAudio (see: GNOME/GDM not starting). After getting the desktop environment back up, I was presented with the following Error Message: ...
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507 views

Cannot boot normally, without restarting lightdm (or gdm)

I had a problem precisely described here: http://www.webupd8.org/2013/01/ubuntu-lightdm-black-screen-when-using.html, black screen with blinking cursor instead of login screen. I've switched to gdm ...
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663 views

Black screen after Ubuntu loads (LightDM)

So, I have this problem, LightDM doesn't appear, after Ubuntu 12.04 loads, it shows a black screen with a white bar on the command line. I know the problem is LightDM, because last time I used Ubuntu ...
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1k views

/etc/init.d/gdm command not found

am trying to install the Nvidia Driver but it keeps givin me close the X server.. I tried the usual way.. to kill the gnome manager.. didn't work because of an error :s sudo /etc/init.d/gdm stop // ...
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133 views

Cannot Login to My Machine Using the *Right* Password

Here are the facts: I ran some stress-tests last night. I forgot to reset the logs to minimal. When I got this morning, I saw that hard drive is full /dev/sda1. Cleaned up the large file (350GB). ...
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9 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 ...
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256 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 ...
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45 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 ...
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153 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, ...
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38 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 ...
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19 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 ...
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43 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 ...
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75 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 ...
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28 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 ...
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161 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 ...
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“Software & Updates” missing from GDM

When I type "Software" into the GDM search box nothing appears. Has this moved to another application? I recently did a dist-upgrade due to a linux-headers update being held back. Since then I ...
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74 views

How do I add login session to gnome session (gdm) in Trusty 14.04

While lxde display manager seems to list all the window managers I have on its initial splash screen the one for gdm lists only a small number. I would like to add selection desktops which are seen ...
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60 views

Upgrade to 14.04 results in system without desktop environment

Yesterday I had a perfectly stable and responsive ubuntu 12(.10?) on my dell xps3. I made the mistake to say yes to the update to 14.04. Installation went fine, but after reboot I was looking at 5 ...
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35 views

Is restarting lightdm likely to cause any serious problems?

I frequently mess things up and I have to restart the computer. Recently, I started restarting lightdm / gdm, as it is quicker. Is that a sensible thing to do? I use the following command (in tty): ...
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528 views

Change GDM in ubuntuGNOME 14.04.1

I've been searching the web and can't figure out how to do this, only that I can do this. I recently installed a fresh install of the ubuntu GNOME 14.04 flavor and love it so far, especially with all ...
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250 views

why is gdm not starting automatically?

I am running Ubuntu 12.04 LTS with all updates. At some point I experienced some trouble with LightDm, so after reading up on AskUbuntu I switched to GDM. No problems, except that I cannot get GDM to ...
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722 views

Ubuntu Gnome 14.04, change resolution on GDM login screen/system wide?

Under Ubuntu Gnome 14.04, Gnome 3.12, I'm running with a different from my maximum resolution. After login, the resolution is set fine, and when I log in after locking the machine, the resolution is ...
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436 views

Ubuntu 14.04 start too slow but shutdown too fast

How do I do speed up Ubuntu like in this link - Disable service: http://ubuntuforums.org/showthread.php?t=89491 Bootchart
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99 views

What does “unknown code ovk 48” mean?

When I log in after update from 13.10 to 14.04, lightdm and gdm display unknown code ovk 48, I can log in without problems (lightdm requires that I press return after the message is displayed). ...
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101 views

GDM is not showing all my available shells after upgrade to 14.04

I upgraded Ubuntu to 14.04. I have around 15 or so shells installed (unity, gnome, mate, lubuntu, cinnamon, chromium os, and a bunch of other random ones) On 13.10, I could see all of them with a ...
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111 views

GDM & Lightdm Not Working After xorg configured

I have an R9 280X set up & it was previously running successfully. Recently I installed latest drivers (both the beta & stable - not at same time) and ran the command. sudo amdconfig ...
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141 views

How do I get lightdm to log me in when it freezes on Ubuntu 14.04?

I'm on Ubuntu 14.04 (somehow) and lightdm doesn't let me log in after I enter my password so I'm using gdm. gdm works fine. What happens is the password field disappears and I can't click on guest ...
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0answers
371 views

Can't login to Ubuntu Gnome 13.10. Login screen doesn't appear

I had been using Ubuntu Gnome for over 3 months now, without any issues. Today, when I tried to boot the os, I couldn't see the login screen. Instead, it shows the Screen with Gnome logo and it isn't ...
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77 views

GDM resolution changed when screen lock

I am using Ubuntu 12.04 and GDM. However, when the system is idled for a while, it eventually ends up to lock screen. And the resolution is changed to lower resolution when I login again. I need ...
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103 views

Ubuntu GNOME 13.10 Unresponsive Login Screen/GDM

I am currently using Ubuntu GNOME 13.10, and I have hardly used it yet. I have installed a couple basic programs off of the Software Center, but nothing much. However, now, whenever my computer boots ...
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248 views

Stuck at login screen, help

i've ubuntu 13.10 , when i write my password , ubuntu wait for 3-4 seconds and then show the login page again this error didn't happen after updates, i'm still working to find many solutions but they ...
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301 views

GDM Autologin not working..

I removed lightdm since I was not able to login as it was booting to a blank screen. Hence I installed GDM and everything was fine. Now when I try to use the Autologin option through GUI interface and ...
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223 views

quantal- GDM not working

I installed ubuntu on 11.10 and the first thing I did was install gdm. It survived the upgrade to precise but on the upgrade to quantal, it just shows the background and the mouse, then it sticks ...