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

learn more… | top users | synonyms

0
votes
0answers
6 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
5 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 ...
9
votes
1answer
172 views

About the 'who' command & it's Output on '14.04 TrustyTahr'

I have a question that arose in my mind after upgrading to 14.04 TrustyTahr from 12.04 PrecisePangolin. The question pertains to the 'who' command, and its output. On previous editions of Ubuntu the ...
0
votes
1answer
9 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
1answer
22 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
0answers
23 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 ...
111
votes
26answers
158k views

Ubuntu gets stuck in a login loop

My problem: As you can guess my Ubuntu is stuck in a login loop when trying to enter my desktop. When I login, the screen gets black and soon after that the login screen comes back. I'm a Ubuntu ...
0
votes
1answer
28 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
20 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
7 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. ...
3
votes
0answers
727 views

Ubuntu 15.04 boot hangs on “Starting light display manager” after updates

I have recently taken the plunge to Ubuntu, and purchased the Dell XPS 13 Developer Edition. My first order of business was to wipe the "Dellbuntu" that came pre-installed and do a fresh install of ...
0
votes
0answers
16 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 ...
0
votes
0answers
12 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
2answers
312 views

Cinnamon won't run on *Ubuntu 13.10

I tried to install cinnamon on my Kubuntu 13.10, just upgraded from 13.04 without problems. There is this ppa: ppa:gwendal-lebihan-dev/cinnamon-stable Also tried to use the non-ppa-versions (those ...
2
votes
1answer
5k views

lightdm doesn't start

Today when I started Ubuntu, it didn't start lightdm, showing a black screen. I changed to console Ctrl-Alt-F1 and tried to start lightdm manually sudo start lightdm It threw me to the graphic ...
2
votes
0answers
30 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
1answer
26 views

Xserver problems

using ubuntu 14.04 and want to configure xserver manually. I stopped lightdm and then executed X -configure It created an xorg.conf.new and i just movd it to /etc/X11/xorg.conf (created a new file, ...
7
votes
8answers
3k views

Appearance does not change on switching the theme

If I select Radiance or Ambiance in the menu show in the following picture, my whole theme does not change. It only changes the title bar. How can I resolve this problem? Or how can I reset the theme ...
0
votes
1answer
48 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 ...
0
votes
0answers
14 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 ...
3
votes
0answers
50 views

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

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 ...
2
votes
2answers
9k views

How to change the default Desktop environment (That appears in the greeter) in 14.04

Previously I navigated to /etc/lightdm/lightdm.conf and changed user-session=ubuntu. lightdm.conf doesn't exist in Ubuntu 14.04 at that location, so how do I change user-session=ubuntu to something ...
6
votes
2answers
4k views

Why is the evolution-calendar-factory process running?

Why is the evolution-calendar-factory process running? Here are some of the running processes (created with ps aux --forest) lightdm \_ /usr/bin/X -core :0 -auth /var/run/lightdm/root/:0 -nolisten ...
0
votes
0answers
28 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: ...
3
votes
2answers
6k views

Type password into login screen, hit enter - nothing happens

I first install Ubuntu 13.10 a few weeks ago and its been going great. I'm still pretty new to Linux, so I haven't been doing a whole lot. The past couple days I've tried installing LAMP, then ...
0
votes
1answer
26 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 ...
0
votes
0answers
136 views

Ubuntu 14.04.2 login screen loop back

I have a login screen loop back problem, when I punch my password I get back to the login screen again. I have tried to login with LightDM CI screen by Ctrl+Alt+F3 but there when i put in the username ...
1
vote
0answers
24 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
23 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
13 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 ...
1
vote
1answer
182 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
6k 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
0answers
51 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
39 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
19 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/ ...
3
votes
0answers
46 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
10 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
202 views

Shutdown just logging out [duplicate]

I have an older hp pavilion all in one pc and after upgrading to 15.04 whenever I tell the computer to shutdown while in unity (haven't tried other DEs) it goes to the login screen as if I'd only ...
1
vote
1answer
648 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. ...
1
vote
1answer
2k views

MATE not showing up after install

I just used Synaptic to install MATE Desktop Environment on my Ubuntu 14.04 computer. It installed successfully, but after rebooting, it's not showing up on the login screen. My only options are to ...
0
votes
1answer
171 views

How do I set-up LightDM and gnome-session-flashback to use XDMCP?

I'm trying to create a terminal session on another computer in my local area network. I have used XDMCP in the past, but it's pretty long ago ('06 & '07). I remember it being a breeze to set-up ...
0
votes
0answers
40 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 ...
1
vote
1answer
36 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 ...
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 ...
4
votes
8answers
9k views

In Ubuntu 15.04 can't do graphical log in

I have done clean install recently of Ubuntu Desktop 15.04. And I was able to log in to the graphical environment until I enabled "boot to text" like said there: How do I disable X at boot time so ...
120
votes
12answers
96k views

How do I disable the guest session?

How do I disable the guest session in Ubuntu 11.10 or higher? I don't want people to be able to use my computer without using a password to log in!
0
votes
0answers
11 views

LigthDM 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
14 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?
2
votes
1answer
162 views

Ubuntu Touch: kill Windows Manager and start xterm in GUI Mode

I installed xterm and I would want it to be the Only GUI application running. so I killed the lighdm using: sudo service lighdm stop. and try to run xterm using: sudo xterm through a SSH ...
1
vote
0answers
41 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 ...