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

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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 ...
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1answer
132 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 ...
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0answers
10 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 ...
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1answer
15 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 ...
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2answers
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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 ...
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8answers
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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 ...
117
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12answers
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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!
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0answers
7 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
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0answers
12 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?
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0answers
34 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 ...
0
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1answer
33 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 ...
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0answers
30 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: ...
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1answer
151 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 ...
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0answers
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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 ...
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25answers
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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 ...
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2answers
3k views

How to get Pantheon Greeter on Ubuntu 14.04 instead of Lightdm

I'm running Ubuntu 14.04, how can I replace the lockscreen with the one on Elementary Luna (Pantheon-Greeter). Thank You!! Edit: Can anyone do it and confirm it works completely?
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1answer
81 views

Use of Yubikey Neo for login 2FA and lock screen

I want to use my Yubikey Neo to login to Ubuntu 14.04. In addition, it would be convinient if the screen is locked automatically everytime I unplug the Yubikey.
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0answers
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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 ...
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2answers
212 views

Configure and run indicator-sysmonitor on boot at login prompt

I want to use indicator-sysmonitor to display an indicator showing that the network connection is up amongst other things immediately at boot on the lightdm login screen. I followed these steps to ...
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0answers
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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
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1answer
35 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?
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0answers
36 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 ...
5
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1answer
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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 ...
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1answer
28 views

Laptop does not like external monitor

Recently, I installed Ubuntu 15.04 on my machine and got everything running about as it should, except for one thing: my external monitor can not be set as default. Every time I plug in my external ...
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0answers
57 views

Minimal Gnome install on Ubuntu Mini

I am trying to get a very minimal Gnome installation on 64bit Ubuntu mini. I don't want the bloatware of a regular install of Gnome. I tried this: sudo apt-get install lightdm gnome-terminal synaptic, ...
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2answers
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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 ...
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0answers
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Window manager (?) or anything similar is broken [duplicate]

When I booted today, I had a normal login screen but as soon as I logged into my account (admin), the mess began. My system: Ubuntu 15.04 with Unity, kernel 3.19.0-22 My symptoms: No panel No ...
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1answer
71 views

How to configure ubuntu 14.04 to run Icewm as default desktop display Manager

How to configure ubuntu 14.04 to run Icewm as default desktop display Manager. which files to Configure to do this
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2answers
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lightdm doesn't show up

whenever I reboot the lightdm display the mouse cursor but it doesn't show the login form. However if I type my password I login into my account. This hapens since I've moved to kubuntu 15.04 (upgrade ...
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4answers
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How to restore LightDM settings?

I've been playing with some of the settings on simple LightDM manager, and I'm not really sure I like what I've done. I've uninstalled LightDM manager but settings remains. How can I restore LightDM ...
0
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1answer
74 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 ...
0
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0answers
13 views

lightdm-webkit-greeter issue

I am using Gnome Ubuntu 14.04 LTS. I used this command; sudo apt-get install lightdm lightdm-webkit-greeter xserver-xephyr I install LightDM and LightDM-webkit-greeter and bevel (lightdm theme), I ...
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1answer
68 views

Crossfire Resets When Lightdm Restarts Ubuntu 15.04

So I had Crossfire running on 14.04, but I decided to update to 15.04 and now it's acting strange. I've gone through the typical steps of commenting out everything in /etc/init/gpu-manager.conf, and ...
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39answers
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How to fix “The system is running in low-graphics mode” error?

Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong ...
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2answers
49 views

Drop to a console after boot, and then start the GUI when required

I am running Ubuntu 14.04 with Gnome as the Desktop Environment. When I boot, I want it to be quick, and drop into a shell. I'll enter my username and password, and if I require, I will start the ...
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1answer
116 views

Install nvidia geforce gt 845m driver on ubuntu 14.04.02 lts

I am trying to install the driver on my asus n551jq, under ubuntu 14.04.02 lts. My steps are: sudo add-apt-repository ppa:xorg-edgers/ppa sudo apt-get update sudo apt-get install nvidia-337 ...
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1answer
60 views

Gdm with nvidia-331 and nvidia-prime causes a black screen at boot

I'm on an Asus UX51vz laptop, which has RAID0 SSD's and an nvidia 650M graphics card. I installed lubuntu instead of ubuntu-gnome because lubuntu still has a RAID0 compatible alternate install ISO. ...
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0answers
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side effect between isc-dhcp-client, network speed and lightdm

I have 300 computers on running on 14.04 64bits Ubuntu, i use isc-dhcp-client to get ip and name from my dhcp server. I encounter the classic problem with lightdm "your system is running in ...
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0answers
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how to change ubuntu 15.04 lightdm greeter wallpaper size?

i was wondering if i can change the size of the background i have selected in lightdm.conf after installing lightdm-gtk-greeter sudo apt-get install lightdm-gtk-greeter then editing the ...
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5answers
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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
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0answers
17 views

Can't auto-login with Lubuntu

I have tried to make autologin work with Lubuntu but for some reason the thing is not working. Just to be cautious I used both procedures described here (for LXDM and LightDM), but neither work. I am ...
0
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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 ...
5
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3answers
163 views

Apply display settings to all user accounts?

I spent some time getting my settings correct for multiple monitors, and that is working fine when I am logged in, but is not right at the login screen or for other users. How do I set the display ...
0
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1answer
34 views

Stuck at loading screen after removing LightDM

I removed unity and installed cinnamon on my Ubuntu 14.04 LTS, everything was working fine. I recently removed LightDM in favour to the lock screen of cinnamon using this method How to uninstall ...
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0answers
27 views

Everything except GUI is black

Since I installed Ubuntu 14.04 on my laptop, I have many problems on it (that I don't have on Debian 8) Indeed, when I switch to TTY with CTRL + ALT + F(1-6), I get a black screen, same problem when ...
0
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3answers
658 views

Cannot Log In to Gnome 3.16 Dekstop

I have installed Gnome 3.16 on my Ubuntu 15.04 (previously updated from 14.04) via: sudo add-apt-repository ppa:gnome3-team/gnome3 sudo add-apt-repository ppa:gnome3-team/gnome3-staging sudo apt-get ...
17
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6answers
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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' ...
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0answers
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Messed up Lightdm , Help

I was playing with lightdm customization and i think i have completely messed it up. I added a few themes and tried switching themes by editing the webkit conf file and after a restart lightdm won't ...
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3answers
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No password asked at login screen just start session button with LightDM

When I first installed Ubuntu I choose NOT to ask me for a password at login. That was ok for that moment cause it didn't ask me any password at login. But now I want to be asked for a login password. ...
0
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1answer
35 views

Restoring lightdm conf files after some mods can leave remnants that alter behaviour?

I observed a strange behaviour on my new XUbuntu installation. ==== Background: I had the intention of experimenting two different remote desktop solutions (one at a time); the local computer ...