LightDM (Lightweight Display Manager) is a Display Manager for the X.org X server.

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54
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15answers
32k views

How do I disable the drum beat sound on the login screen?

I would have expected System ▸ Administration ▸ Login Screen ▸ Play login sound to control this, but unchecking it does not prevent the drum beat sound from playing.
0
votes
1answer
36 views

Guest account works, but regular account does not

My System is Samsung R580 and I am having a problem logging in to Ubuntu 14.04.02 LTS. Yesterday, I ran sudo apt-get update and apt-get upgrade, and have not been able to log into my admin account ...
0
votes
0answers
23 views

How to start lxsession from command line with proper user priviliges

I'm trying to achieve two things that I can not get to work because I don't know how to correctly start an lxsession in Lubuntu 14.04.2. I boot to the command line with the following line ...
0
votes
1answer
25 views

Image Viewer (eog) causes lightdm to restart

When I open an image and without zooming, try to drag to any border (which is ofcourse, by mistake), eog closes and a black screen appears** that says lightdm is starting, and lands me in login ...
0
votes
0answers
20 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
16 views

How can I display a custom image when selecting a custom session in the greeter?

before I asked this question and found out how to run any program directly in place of a desktop environment. Now I'd like to know if it is possible to change the background image alongside the ...
2
votes
1answer
17 views

How do I install ChominumOS and run it as a seperate X Session?

I'm exploring different options on how to install ChromniumOS on my desktop (x86_64) PC which is currently running Ubuntu 14.10. I tried the following methods first: Duel Booting the two, but ...
0
votes
1answer
167 views

VNC over lightdm results in blank screen

I'm trying to set up VNC over lightdm so multiple users may log in to the server and have their own session each. I'm using TightVNC Viewer from a Windows machine to connect to the Ubuntu virtual ...
0
votes
1answer
37 views

ubuntu 14.04 login loop problem

My Ubuntu 14.04 is stuck, when trying to login my desktop. Means the screen gets black and soon after that the login screen comes back. I followed all steps in Ubuntu gets stuck in a Login Loop Even ...
0
votes
1answer
514 views

'Failed to find session configuration default' (lightdm.log)

When trying to log onto a Kubuntu 14.04 LTS system. I noticed that all users would pass, when logging in via ssh, but graphical login (i.e. LightDM with the KDE greeter) would just be possible for ...
1
vote
0answers
86 views

ubuntu 14.10 - lightdm can't start unity. Bad xorg config?

When I try to login with lightdm my monitors go dark and then switch off before taking me back to the lightdm login screen. I get a message telling me: Could not switch to the monitor configuration ...
0
votes
1answer
27 views

LightDM does not ask for login password

I have an auto-logged in non-sudo user called "screen". I have a passwordless sudo but login-protected user called "support". I'm pretty sure this was working fine before, somehow maybe the latest ...
0
votes
0answers
29 views

Starting Lightdm display manager: [FAIL]

How do i solve this? It maybe related to my previous problems: Booting to black screen ubuntu 14.04.2 System Settings Missing/Bluetooth Settings/Sound Settings/Programs Missing?
1
vote
0answers
17 views

How can I login into a domain user account or login as other user in Kubuntu?

I do have a kubuntu box connected to our Windows AD DC, and now i want to login one domain user in my AD to my kubuntu box but I cannot find a way to log as other user in the login screen. I tried to ...
0
votes
0answers
13 views

lightdm: lock session after (only) auto-login

I'd like to be able to have my KDE session started with lightdm auto login but lock immediately. But if I logout and then back in, I don't want the lock. I found this bug: ...
0
votes
0answers
14 views

How do I troubleshoot a hang at login?

When I try to login with lightdm it hangs on a blank background. I've tried the documented fix of: apt-get install --reinstall ubuntu-desktop apt-get install --reinstall unity Followed by a ...
0
votes
1answer
46 views

Stuck at login screen

I have Dell Inspiron 1525 with Kubuntu 14.04. One fine day I can't login and stuck at login screen. So I started searching here and there nothing helped. But one article has given me idea of creating ...
6
votes
2answers
2k views

Why runs evolution-calendar-factory?

Why runs evolution-calendar-factory? Here are some processes (created with ps aux --forest) lightdm \_ /usr/bin/X -core :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch \_ lightdm ...
1
vote
0answers
62 views

Ubuntu 14.04 Pantheon session not shown in LightDM

I installed elementary-desktop on my Ubuntu 14.04 x64 virtual machine following these steps, but I don't get the Pantheon session in LightDM. I only have KDE Plasma Workspace and Ubuntu(Default). Is ...
0
votes
1answer
4k views

No desktop appears after loged in using XDMCP

I just installed a test machine with Ubuntu LTS 14.04 and I went to configure the XDMCP access and found that the file /etc/lightdm/lightdm.conf is not there anymore. In Google I found that now it is ...
0
votes
1answer
43 views

Problem With Custom Unity-Greeter background

So I have this cool background I like. I set it as my background, but in Unity-Greeter, (Not the lock screen) I just see the default "bruised" wallpaper for 14.04. Ick. Does anyone know how to make my ...
7
votes
1answer
4k views

Personalize monitor position before login

I'm using multiple monitors. When logged in everything I fine. Left monitor is positioned left and right monitor is positioned right, but before I login the login screen positions them the other way ...
0
votes
1answer
72 views

lightdm won't start — “failed to use bus name org.FreeDesktop.DisplayManager”

So I want to stop lightdm. I log out, go to terminal, and type in sudo lightdm stop And my screen goes back to the login screen briefly before going to an empty terminal with just the cursor ...
1
vote
0answers
53 views

Black and white screen after “successful” LightDM login screen rotation in Ubuntu Mate 14.04

I have rotated LightDM login screen as suggested by Stephen and got black and white greeter (see photo). Sometimes the problem disappears after login, but occasionally it remains on session. I am ...
0
votes
0answers
16 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
votes
1answer
124 views

Error while login in Ubuntu using Fingerprint GUI

When I am trying to login in Ubuntu using Fingerprint GUI I receive the following error : ERROR: FOUND ENCRYPTED HOMEDIR BUT NO PASSWORD I have installed my fingerprint for both sudo and su ...
0
votes
1answer
42 views

Installing Ubuntu 14.04: GUI goes crazy

So when I try to install Ubuntu on my workstation from USB and the GUI finally pops up either from try Ubuntu or install Ubuntu the windows just go nuts, they are different colors, scrambled and ...
1
vote
0answers
81 views

Install LDAP on ubuntu 14.04

I'm trying to configure OpenLDAP on Ubuntu Server 14.04 LTS and Clients (Ubuntu 14.04 and/or Linux Mint 17). It works with su command, ssh or in terminal but it doesn't work on login screen. Just ...
1
vote
2answers
33 views

How to shutdown the computer after Xsession ends?

I'm making a computer like an arcade machine with an academic game. I'm using Xsession to replace the desktop by an application. It's working fine. But when I go out from the game it returns to the ...
1
vote
0answers
30 views

How to change onboard settings in lightdm?

How do I change the onboard settings for lightdm? I have a tablet with ubuntu on it. It was pretty easy to set up the onboard keyboard to show up in lightdm.... except I really don't like the way it ...
0
votes
0answers
20 views

Help! Cannot login Ubuntu after removing Gnome?

I am using Ubuntu 14.04. I installed Gnome desktop but I didn't like it. So I removed it. After rebooting, I cannot login my default Ubuntu GUI. It just freezes. I also realized that the Ubuntu logo ...
5
votes
5answers
20k views

How do I set the LightDM wallpaper in Ubuntu 14.04?

In previous versions of Ubuntu, picking one of the default wallpapers meant that you saw it on the login screen as well. I am now on a clean install of Ubuntu 14.04, the LightDM wallpaper appears to ...
4
votes
2answers
6k views

Intel Haswell strange graphics and boot issue

I build a new system with a Core i5-4570S CPU and I use the internal graphics card. I can Install Ubuntu 13.04 without problem and everything seems to work fine, but during boot and when I turn the ...
1
vote
0answers
71 views

Ubuntu 14.04 login loop - Guest sessions does not work either

I have been using Ubuntu 14.04 soon after it is released. Today I messed something up with the Chinese input ibus, and I don't know if this is the reason at all, but when I reboot using sudo shutdown ...
16
votes
6answers
41k views

After logging in, there's a black screen and my cursor, nothing else! in Ubuntu 12.10

I've been using Ubuntu(12.10) for a long time, and recently, my Ubuntu went through yet another update. The whole update prompt showed up, following by a password prompt, and finally the good ol' ...
0
votes
1answer
161 views

How to Access Ubuntu files, while running from live cd

I wrote this Code greeter-show-manual-login=true in my Ubuntu etc/lightDM.conf, but when I restart my System ubuntu can't load it! Now I access this file with live cd, but when I open it and delete ...
0
votes
0answers
74 views

Qnix monitor, xorg.conf, and lightdm question

I am trying to install my Korean Qnix qx2710 monitor. From what I'm getting, I need to create a custom xorg.conf file with a modeline generated by cvt in order to get the NVidia driver to recognize ...
0
votes
0answers
48 views

Nomachine headless connection and dummy display

Sorry for the in-code-tags links, but this is my first post here. I am trying to use windows 7 to connect to a machine running ubuntu 14.04. I installed NoMachine according to: ...
1
vote
1answer
22 views

LightDM login Background Sync with Nitrogen

I use nitrogen to control my background in openbox. Is there a way to sync this with LightDM login so that I have the same background on the log in screen as on openbox?
7
votes
1answer
1k views

Ubuntu 12.04 Unity: Black screen with cursor only, when external display is connected before booting laptop

Whenever I connect an external display to the DSub port of my laptop before booting into Ubuntu, something goes wrong in Unity to cause the exact same problem as described here: After logging in, ...
21
votes
5answers
221k 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
77 views

Ubuntu 14.04 desktop does not load after login

I have a Asus Notebook (X450L) with Ubuntu 14.04, it has a nvidia card 720m and a Intel HD Video onboard. All working just fine until yesterday, when I updated the system. Now, after the login ...
5
votes
2answers
201 views

How to install kde-plasma with lightdm instead of kdm

I like lightdm and especially its webkit-greeter a lot. Is there a way to install kde without installing kdm and using lightdm instead? I have tried everything from installing kdm and then remove it ...
0
votes
1answer
68 views

Change Display Managers Without Input

so I am working on a project which will be a Lubuntu install without touching anything during the install process (except after a few seconds of quick input), and I want to uninstall lightdm and ...
1
vote
1answer
730 views

Ubuntu 14.04 hangs on boot after starting CUPS

As I was trying to install an alternative keyboard layout I ended up deleting my /usr/share/X11/xkb/* folders. I tried to reinstall them with apt-get remove xkb-data && apt-get install ...
0
votes
1answer
321 views

LightDM: user-session doesn't work, nor do multiple sessions at start

On my media center (XUbuntu 14.10), I am trying to autostart Kodi in the focussed session and also start and autologin xfce4 in a second unfocussed session (I hope Steam In-Home Streaming doesn't need ...
-1
votes
0answers
13 views

How could hide a user from log in screen? /etc/lightdm/user.conf doesn't work!

I created a user from this command useradd -M -N -g sambashare share And i want to hide it from log in screen, and i followed How do I hide a particular user from the LightDM login screen?. ...
-1
votes
0answers
11 views

How to bring back the user in log in screen?

Yesterday, i've tried to change my user to root, so i edit /etc/passwd and change its uid and gid to 0. But i found some problem, so i bring its uid and gid back to its original one (which is 1000) ...
0
votes
0answers
24 views

How to change lightdm background?

I want to change background image of login screen in unity Ubuntu 14.04. I already read another answers on askubuntu and also downloaded Ubuntu Tweak. What actually happens? When I change the ...
0
votes
1answer
27 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 ...