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

learn more… | top users | synonyms

0
votes
0answers
17 views

Graphics and input settings load delay on boot

Whenever I boot my system, after loging in, it takes half a minute for my display settings and my input settings to load. This means that for the first 30 seconds I have the default resolution ...
1
vote
0answers
81 views

Black screen on bootup

I've had a problem since loading ubuntu alongside my windows install now. I'm running 14.04 and using Gnome 3.12 shell and Lightdm. When booting up the Ubuntu splash screen looks normal and pushes me ...
1
vote
0answers
126 views

How do I use lightdm for login instead of light-locker?

I installed xubuntu on my laptop and recently removed nearly all of the xfce4 packages in favor of a kde desktop. However, light-locker is still used for the login screen. How can i remove it and ...
1
vote
1answer
63 views

Unable to login after deleting Guest User Account

I was trying to tweak Ubuntu after fresh installation and following various links on web stating "Things to do after installing Ubuntu 14.04" I was trying to remove Guest User Account from the start ...
1
vote
2answers
1k views

How to configure a password for LightDM VNC connection

I have ubuntu 14.04, and am using lightdm. I want to login to the machine from another (windows) computer using VNC. By using the following /etc/lightdm/lightdm.conf I get a VNC server, but when I try ...
1
vote
0answers
85 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 ...
0
votes
0answers
37 views

How can I make my display work again in Xubuntu?

I'm running Xubuntu 14.04 and I was testing some stuff because I have a dual display setup, and one display never wakes up from suspend. So I tried this, to see if the display would wake up: sudo ...
1
vote
0answers
79 views

How to enable second x session on tty8 in 14.04

how can I enable a second x session on tty8 in ubuntu 14.04? /etc/lightdm/lightdm.conf and [LightDM] seats=Seat:0, Seat:1 ... [Seat:0] user-session=ubuntu autologin-user= [Seat:1] ...
0
votes
1answer
355 views

LightDM login fails for LDAP users

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 ...
0
votes
2answers
1k views

Ubuntu release upgrade from 13.10 to 14.04 fails - log-in fails

Upgrading Ubuntu To upgrade from Ubuntu 13.10. to 14.04. I ran sudo do-release-upgrade. The first attempt failed and I found the following message in the error log: ...
0
votes
1answer
85 views

No desktop after login?

So I just installed Ubuntu Minimal 64bit and when I login it just leaves me on what looks like a command page that says jerric@Jerric-HP:~$. I don't have Windows anymore, I think. What do I do? ...
0
votes
0answers
34 views

GNU-screen not working after startx

I recently uninstalled lightdm in favour of starting X from the command line, so that I could jump between different window managers without having to configure lightdm. Now I just type startx and the ...
1
vote
1answer
522 views

lightdm failed to start session; user folder requesting Gnome

We're migrating some old 10.10 users on Gnome to 14.04 using Unity. When they log on, however, the lightdm greeter complains "Failed to start session." /var/log/lightdm/lightdm.log notes: ...
1
vote
0answers
37 views

Where does lightdm change $PATH

I use lightdm on my Ubuntu 12.04 and I have the entry /usr/lib/lightdm/lightdm in my $PATH if I login through lightdm. Now I'm cleaning my $PATH and I simply want to know where this entry gets added. ...
0
votes
0answers
111 views

Unity greeter wallpaper missing

After following this guide, whenever I use a custom wallpaper (one that is not from the official wallpapers), the background of the login screen shows only purple instead of my wallpaper. However, if ...
0
votes
0answers
11 views

Black screen after booting Ubuntu 14.04 LTS [duplicate]

I'm new to Ubuntu 14.04. I changed some configuration and installed Gnome. I chose Display manager as GDM. After I restart, it boots but the login window does not appear. It shows a black screen ...
0
votes
1answer
162 views

fix “The system is running in low-graphics mode” error without internet

I'm very sorry for asking about this error in another question but all the solutions in here require for you to have internet. I only have wireless internet and when I am in that console the internet ...
1
vote
2answers
627 views

Login as domain user Ubuntu 14.04

I have installed PowerBroker aka Likewise-open on my Ubuntu 14.04 desktop. I successfully added the desktop to the domain but I am unable to login as a domain user at login screen. I found some ...
1
vote
1answer
57 views

How to detect the vga signals [closed]

I am currently working on Ubuntu 12.10. We have functionality as we have two cameras (say left and right cams) for recording the videos which creates two different streams as stream-1 and stream-2. ...
0
votes
0answers
29 views

Process 'leaking' from lightdm session

When I restart lightdm or log out and log back in, a process is left left running. A new logind session is opened, but the old one remains running: c68 - john (1000) Since: Mon 2014-07-14 ...
1
vote
1answer
567 views

12.04 After HWE upgrade and running Ubuntu Tweak to clean cruft, can't start lightdm

I did the HWE upgrade and that worked fine. System started fine. But I ran Ubuntu Tweak and it reported massive amounts of cruft. So I did the Janitor and uh-oh...system boots to command line ...
1
vote
0answers
288 views

Upgrade from 12.04lts to 14.04lts login loop

Kinda a newb but I upgraded from 12 to 14 when I did I changed my login password now when I try and login I get into a loop, if I do this I can login in "These suggested instructions apply to my case ...
0
votes
1answer
123 views

X Server config used by lightdm

What I want to do is to start a x server just like the lightdm did. But I can't get the X server perform just like the one started by lightdm. I see the X server process executed by lightdm is: root ...
0
votes
1answer
2k views

How to edit lightdm.conf file

I tried to activate numlock in the login screen using numlockx. The instruction point me to add this line greeter-setup-script=/usr/bin/numlockx on to this file /etc/init/lightdm.conf I tried ...
0
votes
1answer
896 views

Installing Gnome 3, should I use gdm or lightdm?

I'm currently using Xubuntu 14.04 and I wanted to try out Gnome 3, so i started installing it, and during the installation it is asking me what display manager should I use by default: gdm or lightdm. ...
0
votes
0answers
23 views

BlueProximity and LightDM / Xubuntu [duplicate]

I would like to use BlueProximity to lock/unlock my session in Xubuntu 14.04. Problem is that I could not find LightDM command for unlocking a screen (googled several times). I would prefer not to ...
0
votes
1answer
35 views

Ubuntu 12.04 login returns me to login manager, how to diagnose?

This started with me adding a graphics card to my system. When I booted up, ubuntu complained that the graphics config had changed, and gave me a terminal session. I copied ...
1
vote
0answers
91 views

Xmonad keyboard not working (Macbook pro)

I've installed Ubuntu 14.04 on my Macbook Pro retina (11,1) and it all worked swimmingly. Then I tried installing Xmonad, selected it once from my lightdm manager and now it loads by default. (The ...
0
votes
2answers
75 views

unable to login after removing guest account

Hello i try to disable the guest account in ubuntu 14.04 by typing these commands sudo gedit /etc/lightdm/lightdm.conf allow-guest=false After re-staring ubuntu it boot up but dos not go to ...
0
votes
1answer
160 views

How to enable Lubuntu lightdm dinamic autologin (sorry for my english)

Hi I freshly installed Lubuntu 14.04 I disabled lightdm autostarting by editing /etc/default/grub Well.. I got some problems "sudo service lightdm start" is working but startx command always ...
0
votes
0answers
59 views

Microsoft LifeCam HD-3000 slows down login

As long as my Microsoft LifeCam HD-3000 is plugged in my machine freezes for about 30 seconds as soon as the login manager comes and another time right after I put in my password. This is seriously ...
0
votes
1answer
123 views

Impossible to start Ubuntu after installing lxde

i just tried installing lxde on my Ubuntu 14.04. I wanted to try working with two different screen at the same time. So to do that typed CTRL+ALT+F2 to go in another terminal and then i typed the ...
6
votes
1answer
1k views

How to make ubuntu 14.04 a kiosk [duplicate]

I have made a clean install of Ubuntu 14.04 LTS Desktop and now want's to convert it into a kiosk with a full screen webbrowser. This was previously done in 10.04 and worked perfect, but due to ...
0
votes
0answers
51 views

Can't set unity-greeter background on 12.04.1

I used Ubuntu Tweak to customize the login screen. Changed the background settings, so it used desktop wallpaper as login screen background. It worked at first but then I selected a custom wallpaper ...
0
votes
1answer
65 views

Unable to login into any account

How it happened My computer was becoming very unresponsive and I could not close any applications to free memory so I held the power button until the computer turned off. When I turned it on ...
0
votes
0answers
154 views

Disable laptop display before login

I am looking for a way to disable my laptop's built in display before (or right at) the login screen on Ubuntu 14.04. I have a second monitor, and want to only use that. I already have changed the ...
0
votes
1answer
314 views

KDE 4.13.2 update breaks login from LightDM on Kubuntu 14.04

One of the KDE updates that rolled out in the last couple of days broke my ability to log in to KDE from lightdm using the lightdm-kde-greeter. At the lightdm prompt, I enter my login credentials, the ...
2
votes
1answer
313 views

Lightdm issue after installing xmonad, Ubuntu 14.04

Yesterday I decided to install and try Xmonad on my laptop running a fairly fresh install of 14.04. After running an Xmonad session i decided to try the Gnome-xmonad (or something similar) option. All ...
0
votes
1answer
119 views

Fluxbox Lightdm nautilus

I recently started using fluxbox, I'm using Lightdm as a desktop manager and was using gnome/unity before fluxbox. I'm facing a few troubles while trying to adapt to this new window manager, the ...
1
vote
0answers
130 views

unity-greeter login background won't change according to the user that is highlighted

I use Ubuntu 12.04. Recently, I change to use another Accounts Service which could remove certain users from the graphic login screen of unity-greeter. I downloaded source code from a branch of ...
1
vote
0answers
180 views

Stuck at Ubuntu login screen

When I try to log in to my account the screen turns black for a second then goes back to the login screen. Apparently this is a fairly common problem but nothing I've tried from past questions on this ...
0
votes
1answer
100 views

Is there a way to disable portrait/login picture display in the Xubuntu login?

I recently upgraded a machine from XUbuntu 12.10 and now the login screen has a blank silhouette that looks like the Facebook empty profile picture. How do I disable this and get back to just username ...
0
votes
0answers
123 views

14.04 Unity not working after reboot

Earlier today I finished an apt-get upgrade and my machine reported that it needed to be rebooted. So I shut everything down and rebooted the box. The shutdown didn't go as smoothly as I would like ...
0
votes
2answers
1k views

Login Screen Stuck as Desktop Background After Sign On

The wallpaper of my desktop doesn't appear and instead only the wallpaper of my login screen appears in my desktop. Also though the launcher, panel everything appears(as shown in the screen shot) they ...
0
votes
0answers
148 views

Autologin questions

I have set up a batch of workstations at a library using DRBL. These workstations are running Ubuntu 14.04. I want these workstations to autologin to a specific user (a different one for each ...
0
votes
0answers
220 views

Ubuntu 14.04 - After doing something to the grub config and reverting it, I cannot log in

I wanted Ubuntu to boot into text mode instead of grapical mode, so I followed a tutorial and went ahead with editing /etc/default/grub so that GRUB_CMDLINE_LINUX_DEFAULT="text" instead of ...
1
vote
0answers
16 views

Unity unable to login (can login with xubuntu) [duplicate]

Any and all help would be appreciated... Ok so. My laptop is Ubuntu 14.04, and the other day I restarted it and then was no longer able to login. So what happens? I attempt to login (lightdm) and ...
4
votes
1answer
2k views

Laptop using 14.04 won't get past login GUI

My laptop was working perfectly yesterday, and now today I can't log in. At first, I was only getting a black screen. However, after following instructions in some questions here on AskUbuntu, I ...
0
votes
0answers
82 views

Change unity for gnome-fallback

I am trying to set up a couple of computers with Ubuntu 14.04. When we had the computers running 12.04 we were able to get users to log in with gnome-session-fallback as a default. However, I am ...
0
votes
1answer
169 views

Lightdm does not start automatically

When booting Lubuntu 14.04, a terminal screen is shown instead of the usual graphical log-in screen. Then, I have to type sudo lightdm and use Ctrl+Alt+F7 to switch to the graphical log-in screen. I ...