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Manager (GDM) is a program which used to provide Ubuntu's graphical login screen until Ubuntu 11.10; since then it has been replaced by LightDM.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
545 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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1answer
911 views

13.04; frequent freezes under gnome-shell, gnome, unity

I just upgraded 12.10-->13.04 on my Dell Precision: Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz NVIDIA Corporation GT218 [NVS 300] (rev a2) (prog-if 00 [VGA controller]) I can login via gdm -- by ...
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1answer
571 views

Make GDM3 in Ubuntu 12.10 show a list of available languages

The local computer pool is used by a large number of students that prefer to choose the language of the Ubuntu desktop. Not all want English. Unfortunately, the GDM login manager does not present a ...
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1answer
90 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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1answer
125 views

X keeps restarting without getting to login screen

I am running Ubuntu 13.10 in my PC. Two days ago, oneconf crashed while I was working and I had to restart the computer. Since then, I haven't been able to go past the black screen to the login ...
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1answer
84 views

All display managers boot into Gnome Classic (No effects)

I've tried both gdm and lightgdm but no matter what I do, I get logged in to Gnome Classic (No Effects). The terminal's transparency is a nuisance here and I completely do not want to work on anything ...
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78 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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851 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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165 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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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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574 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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506 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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42 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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596 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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846 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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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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123 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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126 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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597 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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238 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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472 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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655 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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858 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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125 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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351 views

How do I connect to a root VNC session?

I installed the Unity desktop and TightVNC using these directions. The window comes up in VNC, although because I'd started the VNC Server as root, I seem to be logged in as 'guest'. Please note that ...
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24 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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32 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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25 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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204 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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89 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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402 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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269 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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66 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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96 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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85 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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133 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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345 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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94 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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127 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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172 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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36 views

Ubuntu Precise — suspend wedges GDM — help!

I've been a very happy Ubuntu user for many years, and worked my way past any number of problems, but I've never seen anything like this. Recently I got a new machine and installed 12.04 Precise on ...
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21 views

How to migrate gdm font setup?

I have purged gdm and switched to lightdm. This changed how my fonts look in X applications. Unfortunately, they did not get prettier. How can I have the same fonts in both or migrate settings from ...
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22 views

Starting gdm without nolisten TCP option

Can I start Ubuntu 13.04 gdm without -nolisten TCP option?
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89 views

Problems with gdm, sometimes not loading GNOME Shell

My current problem is quite hard to investigate, at least for me. Thing is that when I start my HP G72 notebook it boots ok, HP logo appears and dissapears and then, it depends, sometimes it shows ...
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30 views

restarting gdm makes screen glitchy and annoying wifi issue

First issue is when I type "sudo service gdm restart" I get a weird glitchy screen, I can see the mouse cursor and the desktop is responsive, but nothing is readable and I can't tell where anything ...
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111 views

where is recent user list in gdm3 stored? I want to clear the list

I tried removing: /var/log/wtmp /var/log/ConsoleKit/history the completet gnome tree in /var/lib and accountservices nothing helped. The user list ist still there. We want to have a fresh box ...
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220 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 ...