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

learn more… | top users | synonyms

0
votes
0answers
22 views

Login screen doesn't hold

My login screen appears for 2 seconds only, falling back to a black screen with the booting "verbose" text. I can still log in by simply typing my password and pressing enter. This issue only ...
3
votes
1answer
395 views

Can't start LightDM after recent kernel update

Whenever I boot, it show Plymouth then goes to a screen full of boot log, I -think- the only relevant part is Starting Wait for Plymouth Boot Screen to Quit...es.ileged Tasks.s..p link was shut ...
2
votes
1answer
56 views

No password required for user login [duplicate]

I am running Ubuntu 15.04, but I have had the problem since 14.04. When i start the computer, the login screen shows up but i don't need to enter my password to login. I also cannot lock the computer, ...
0
votes
2answers
74 views

Set lightdm/login to default

I tried setting the login screen background to my wallpaper, and this works for locking once I'm signed in, but when I boot up I just get a solid color purple screen, and it totally glitches when I ...
0
votes
1answer
83 views

Now that `/usr/share/backgrounds/warty-final-ubuntu.png` has changed, where is the solid purple background screen file stored?

Now that /usr/share/backgrounds/warty-final-ubuntu.png has changed, where is the solid purple background screen file stored? /usr/share/backgrounds/warty-final-ubuntu.png is the default background, ...
0
votes
0answers
13 views

Lightdm. Why is it hangs if the camera is connected

We using ubuntu on all pc workstations. There are ten machines with installed ubuntu 12.04, 14.04 versions, most of all has an issue with lightdm. Once it starts, it hangs. We see login screen, ...
0
votes
0answers
67 views

Stuck in login loop but can't get to tty

I recently installed ubuntu 15.04 and on second boot I can no longer login as I am stuck in the login loop thing that seems pretty common. After first boot I installed virtual box and nvidia drivers. ...
1
vote
0answers
327 views

LightDm does not have permission to read path (xubuntu Greeter Settings)

I'm trying to set a custom background for the login screen through "LightDm GTK+ Greeter Settings: whatever path I set I get an exclamation point next to the word Background with the error (on ...
0
votes
1answer
278 views

14.04.3 Login screen loop Graphic card failure

I'm running 14.04.3 on a ASUS Netbook X201E. Today, I was'nt able to login to my account. lightdm starts abnormally. The top bar is'nt displayed. After attempting to log in with correct password ...
1
vote
0answers
28 views

Running a Kiosk App from session-setup-script

I'm using Lubuntu 14.04.03 to create a Kiosk. I want that the Kiosk displays a custom App made by us. I'm using lightdm session-setup-script to do so. I have created the following file: ...
2
votes
1answer
79 views

Reverted from Gnome to Unity on Ubuntu 14.04. Now everything looks weird

This is the top right corner of my desktop. The icons are completely different. Even the terminal's background has turned white. What's happening? How can I get back the old stuff?
3
votes
1answer
125 views

Installing Brasero removes 100+ packages and impairs internet and display manager

I was thinking to have solved one problem with Paraview but have come across a bigger one with Brasero. A few days ago I wanted to install Paraview (amd64) in my computer (x68_64, Ubuntu 12.04 LTS) ...
0
votes
0answers
258 views

Light display manager wont start on boot after updating to ubuntu 15.04!

Hello all Ubuntu experts. I am a bit of a noob when it comes to updating OS and upon updating from Ubuntu 14.10 to 15.04 I see lots of programs (I think) that say OK next to it. The list keeps going ...
0
votes
1answer
333 views

Ubuntu not starting post cuda installation

I am running Ubuntu 14.04 alongside windows 8.1 on an HP Envy 15 laptop having Nvidia gtx 850m graphic card. I was trying to setup the cuda programming environment as given here ...
1
vote
0answers
27 views

Unity greeter wallpaper change every minute

I have script that changes Unity Greeter wallpaper location every minut, but problem is that it doesn't show new wallpaper unless i login in to any user account and switch back to Login screen ...
3
votes
1answer
149 views

User switching broken in 14.04

I just upgraded to 14.04. I have an nVidia graphics card and am using the nVidia driver (proprietary, tested). I am using gdm as I don't light the look of lightdm (also, I have two monitors and it ...
0
votes
0answers
46 views

How to reset default xsession automatically?

I want to setup lightdm so that even if I login once using a different session the default login session for my user doesn't change. I tried making .dmrc and a two files in /var/ for my user ...
0
votes
1answer
341 views

Ubuntu blank login screen after installing kubuntu 15.04 with plasma, only guest login is possible

I was using ubuntu 15.04 above that I installed kubuntu with plasma desktop. After reboot I can not see my login screen. all I can see is blank screen. If I press enter it automatically logging me ...
0
votes
0answers
226 views

Black screen while connecting to XDMCP server on Ubuntu 14.04

I'm trying to remote connect to my Ubuntu 14.04 workstation from Fedora 20. Both sides have Xnest installed. I'm getting a black screen on the client side when I go to connect. I'm guessing Xnest may ...
0
votes
1answer
322 views

sudo nautilus results in “cannot open display” error

$ gksudo nautilus Failed to connect to Mir: Failed to connect to server socket: No such file or directory Unable to init server: Could not connect: Connection refused (nautilus:6072): Gtk-WARNING **: ...
0
votes
1answer
154 views

xorg.conf is ignored

I created a /etc/X11/xorg.conf using aticonfig --initial which looks like this: Section "ServerLayout" Identifier "aticonfig Layout" Screen 0 "aticonfig-Screen[0]-0" 0 0 ...
0
votes
0answers
87 views

Get nvidia driver to work in gdm OR fix workspaces in lightdm

I have a lenovo with two GPUs, intel and nvidia. The problem is that if I set gdm, the driver doesn't work, and I can't switch to high performance mode. If I change gdm and select lightdm, that ...
0
votes
0answers
10 views

Problem with displaymanager

Have installed Ubuntu 15.04 Unity with double-core 32 processor. Since I have tried to install a driver for my NVIDIA Geforce 630 with NVIDIA-current I have problems with the display-managers lightdm. ...
1
vote
1answer
41 views

Lightdm appears and immediately disappears (DELL XPS 13)

I have this strange problem with LightDM. After booting, the login screen appears... and almost immediately disappears and leaves a black screen. Mouse cursor is there. If I type in my password ...
0
votes
0answers
24 views

Simulating process of logining using lightdm

Recently, I wanted to login a user manually so I tried using startx on a non-root user. I encountered with error X: user not authorized to run the X server, aborting. I found out that this can be ...
2
votes
0answers
73 views

How can I start lightdm / server X?

I installed yesterday new drivers from NVIDIA in my Ubuntu 14.04. I had to stop server X so I used the "famous" sudo service lightdm stop Today I updated my system and it seems like lightdm is off. ...
0
votes
0answers
41 views

How to enable alpha-transparency for windows in custom Xsession?

I want to run my software in kiosk mode (on Ubuntu 14.04.3 LTS). For that reason, I add a custom X-login via... /usr/share/xsessions/mycustom.desktop: [Desktop Entry] Encoding=UTF-8 Name=My Custom ...
0
votes
0answers
71 views

I can't access my login screen. After the splash screen, my screen turns white

After my splash screen, the display shows 'starting version 219' and my entire screen goes white and no login screen appears. I'm able to access tty. When I tried to start lightdm from there I got: ...
4
votes
0answers
152 views

No login screen on startup, works after logging in and logging out again [closed]

I installed Ubuntu on a client's computer. At first - no issue, but after some updates and installs (including burg, which was not the problem as the problem remained after removing it, I could not ...
0
votes
1answer
60 views

X fails to start after update

After updating ubuntu yesterday, the system boots on a dark screen (+ no signal message on monitor). Ctrl-Alt-F1 gives access to command prompt, and I tried a sudo service lightdm restart -> which ...
1
vote
0answers
39 views

Xubuntu. Suddenly black

This is what my desktop looks like now. It's completely useless, will not do anything. Nothing to right click won't even minimize a program when it's clicked on. I've had this problem before and ...
2
votes
0answers
32 views

Ubuntu 12.04 graphical interface is gone

I was trying to set up my build environment for beagleboneblack.I was following standard instructions from this site https://source.android.com/source/initializing.html I was installing ...
0
votes
0answers
51 views

How to update lightdm/metacity to classic gnome 3.12 or greater?

Need to use the numix flat theme in Ubuntu 14.04 metacity lightdm (classic gnome 3.9), but numix flat has requirement of gtk3+ and gnome 3.12 at least. How can I just update to gnome 3.12, not the ...
0
votes
0answers
176 views

Can't login to Ubuntu

I am on Ubuntu 15.04, on an MSI laptop that dual boots with windows 8. More precisely, when I type my login info at the startup screen, it waits a little while, then spends about 1/10th a second on a ...
0
votes
1answer
132 views

Is Lightdm-webkit-greeter necessary to run Ubuntu 14.04 LTS?

I want to get rid of lightdm-webkit-greeter due to the errors when I boot into Ubuntu 14.04LTS. Is it possible to run Ubuntu without lightdm? I don't want to mess up my system by removing it. I have ...
1
vote
0answers
38 views

Webkit-greeter only changes after a restart, not when logging out or locking computer

On Ubuntu 14.04, I installed the lightdm-webkit-greeter using sudo apt-get install lightdm-webkit-greeter then, I did the following to get the greeter I wanted: cd /usr/share/lightdm-webkit/themes/ ...
1
vote
0answers
16 views

Get rid of “unused” sessions in session switcher

As shown in this screnshot, whenever I enter the session switcher (it doesn't matter if it's from the Alt-F2 runner, the lock screen, etc.), I see an "Unused" entry for each VT that has an X session ...
1
vote
1answer
2k views

I want to install Nvidia module 352.30 on ubuntu 14.04 (2 video cards intel and nvidia)

This is my hardware Using: nvidia-installer ncurses user interface WARNING: You do not appear to have an NVIDIA GPU supported by the 352.30 NVIDIA Linux graphics driver installed in this system. ...
0
votes
0answers
171 views

Cannot autologin on Ubuntu 14.04 after updates

I just do some updates and now I cannot autologin into my Ubuntu 14.04. Previously, I can autologin, sometimes I cannot. I guess, this is caused by something with systemd. Here my auth.log when ...
0
votes
1answer
53 views

LightDM Animations

is there a way to port lightdm lock/unlock fade animation on other greeters? I'm thinking about making a port of the animations on pantheon-greeter. Thanks
2
votes
0answers
40 views

Smart lock like on Android?

Is it possible to configure either LightDM or GDM to automatically log in when my laptop is connected to a certain WiFi? Or even better, to check my location regardless of what WiFi I use?
1
vote
2answers
146 views

Themes & Icons not loading after logging in quickly

So this is a funny one, I guess. What am I running? Ubuntu 15.04 / Kernel 3.19 On what am I running? ASUS Zenbook ux303ln As the title says, the theme and icon style, specified in the unity tweak ...
1
vote
1answer
478 views

Problem on boot: Starting Version 219

After installing Ubuntu 15.04 when I start the system appears the message, which carries with it takes longer to boot. If anyone can help would be grateful. complement: Already tested the command: ...
0
votes
1answer
104 views

LXDM and Ubuntu 15.04

Currently, the lightdm is burning up too much CPU resource on my computer and from the searches I've done, it's a heavy display manager. Example, just having wunderlist web page open in firefox, the ...
3
votes
1answer
131 views

Unknown xubuntu screen locker / password

I have a regular ubuntu installation which I then installed xubuntu desktop over. I am occasionally confounded though by an unknown "screen locker" that occasionally appears instead of my normal ...
1
vote
0answers
98 views

Login loop on ubuntu 14.04. Other user can log in. Checked Xauthority, and ~/.profile.

When logging in to ubuntu 14.04 I am encountering a login loop on my main account. Upon entering my password, the login box disappears to leave the wallpaper displaying alone. Then after maybe 1-2 ...
0
votes
0answers
13 views

How can I set up Ubuntu to execute a command as root when a user without root privileger logs in? [duplicate]

I currently have Ubuntu (15.04) set up to boot to tty, and want to make it so that sudo service lightdm start is executed whenever a specific user (without root privileges) logs in. Is there a way to ...
1
vote
0answers
40 views

After installing QtCreator, lightdm not turn on xubuntu 14.02

I just simply wrote sudo apt-get install qtcreator in terminal and saw how he removing xserver and some graphical packages in installation process. At the end, he install them again, but after reboot, ...
2
votes
1answer
956 views

How to change the Desktop Manager

When I installed KDE Plasma in Ubuntu 15.04, I set the LightDM as the default manager, But I want to set KDM as the default, how can I change this?
0
votes
0answers
116 views

The system is running in low-graphics mode?

First off, I've searched and tried every method I could find the last ~6 hours. Nvidia 750 TI graphics card. Running in VMWare. The system ran fine for a few days and out of nowhere I received a ...