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

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Can't switch between lightdm and gdm

I installed Ubuntu Studio 13.10 from a minimal CD, and then upgraded to 14.04. But since the cd install, I have been trying to change from gdm to lightdm. I have tried sudo dpkg-reconfigure gdm, sudo ...
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1answer
26 views

How to disable shutdown/reboot from lightdm in 14.04?

In 12.04 it was possible to prevent system shutdown or reboot from the login screen by adding the following restrictions in /etc/polkit-1/localauthority/50-local.d (adapted from here): [Disable ...
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21 views

How I can enable manual login when machine boot without system crashes? [on hold]

I was trying many times to enable graphical login "manual" when system login but unfortunately every time the system failed to login with graphic card problem. After I enabled root login by sudo ...
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19 views

Can't start lightdm anymore since I installed DBus

I am looking to read a SATA port in Java, and saw I could do so installing DBus, so I downloaded DBus from here http://www.linuxfromscratch.org/blfs/view/svn/general/dbus.html and installed it (only ...
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1answer
61 views

Ubuntu 14.04 destop doesn't work

After I updated my Ubuntu 13.10 to 14.04, I can't start the desktop anymore. Booting seems fine, but the log in screen doesn’t fill the whole window. After login, I get a dead screen, with only the ...
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13 views

Xorg errors with alt. window manager

I'm currently trying to use the bspwm window manager, by following this guide. I have all the correct dependencies installed, and I compiled it correctly without any errors. The problem comes when ...
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1answer
43 views

LightDM is missing Gnome Shell icon

the Icon of Gnome shell is missing from lightDM.. I had to manually add Gnome Shell to lightDM because it didn't install properly on my machine. now I don't now how to add the Icon to lightDM. Im on ...
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1answer
1k views

How to configure lightdm to allow manual logins in Ubuntu 14.04

I used to modify /etc/lightdm/lightdm.conf, adding the line greeter-show-manual-login=true, in order to allow login for hidden users and root. Now I've just installed the new Ubuntu 14.04 and the ...
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77 views

Ubuntu 14.04 user restarting lightdm

Today, I started my computer, and when I type the password lightdm starts again instead of logging in. The same happened with gdm. Now I'm typing from computer's Guest Account.
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92 views

Turn on Num Lock at start up

I am not able to activate Num Lock on Ubuntu 14.04. I installed Leafpad and gksu. Thereafter I ran the command: gksudo leafpad /etc/lightdm/lightdm.conf An empty file opened, and I wrote: ...
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192 views

How Do you set up numlockx at startup in ubuntu 14.04

In ubuntu 13.10 in order to install numlockx you had to run: sudo apt-get install numlockx After you install numlockx you had to run: gksudo gedit /etc/lightdm/lightdm.conf At the end of this file you ...
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37 views

No lockscreen option in CCSM 14.04

I expected to find Lockscreen option in CCSM after upgrading to Ubuntu 14.04, in Unity Plugin, general section, in order to switch between unity and lightdm. Unfortunately, It's not in the tab. Why?
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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 ...
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87 views

How do I get lightdm to log me in when it freezes on Ubuntu 14.04?

I'm on Ubuntu 14.04 (somehow) and lightdm doesn't let me log in after I enter my password so I'm using gdm. gdm works fine. What happens is the password field disappears and I can't click on guest ...
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1answer
26 views

How to show old account on the greeter

TL;DR --> I want to know how to make an old account show up after reinstallation of Ubuntu so that I can log in to that account and not have to reinstall all the other software I had installed on that ...
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1answer
31 views

Incidentally removed lightdm - how to get it back?

I have incidentally removed lightdm, by sudo apt-get purge lightdm. Now I am not seeing login screen when starting the computer. (only black background.. nothing else) How to restore/install it back? ...
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42 views

LDAP authentication: not able to login through GUI but able to login from console

I am building a LTSP environment with LDAP authentication. I have configured the LTSP,LDAP server and client perfectly. I checked with getent passwd command in LTSP/LDAP client. I can see my LDAP ...
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15 views

How to disable “remembered last login” on lightdm?

Think there is 2 users on a Ubuntu: User1(=admin), User2. User2 logins to system and restarts it. It come up and User2 is selected for login, because he was who had last active session! I want to ...
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1answer
29 views

how can I costumize lightdm theme?

After I upgraded to 13.10 an ugly white icon theme appeared at top panel of lightdm, which does not fit bluish theme. I am using zorin greeter. I also tried gtk greeter but I didn't like it. I took a ...
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0answers
37 views

How do I rotate the login screen?

So I am trying out the 14.04 and I keep both of my monitors in portrait mode. But the login splash is in landscape. But I can't seem to figure out how to rotate my login splash or where the config is ...
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11 views

fill_in_dev failed ubuntu 13.10

I have installed Ubuntu 13.10 on a USB key but when I boot I see the error "fill_in_dev failed" flash up on a black screen after the initial Ubuntu splash screen appears. The computer will not boot ...
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157 views

Is it normal for lightdm.conf edits to not affect the desktop screen resolution?

I wanted to change my desktop screen resolution to 1366x768. But my VESA drivers(AMD REDWOOD) did not detect that resolution. So I created a shell script as follows:- xrandr --newmode ...
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1answer
51 views

Any way to change lightdm unity greeter background without changing current config files?

About changing lightdm unity greeter background image, most answers are to change /usr/share/glib2.0/schemas/com.canonical.unity-greeter.gschema.xml. Is there any way to change the default wallpaper ...
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1answer
64 views

How do I enable a specific pam config in the lockscreen?

In Trusty, there is a new lockscreen that fits the look and feel of lightdm, and shares some config files, especially for pam. I am using libpam-fprintd to allow using my fingerprint reader when ...
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1answer
18 views

Is there a way to switch into another user account from a script?

Let's say I have an account on a small network of machines that is set to auto-login. If one of the machines has a problem with the network or one of its services, I need to break out of the ...
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11 views

LightDM don't display guest account wallpaper

In guest account on login screen lightdm shows clear purple screen instead of wallpaper and when I log in, I can see graphical artifacts for a few seconds and later desktop shows normally. How can I ...
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1answer
43 views

Start another GUI on different TTY

For some reason I want to have 2 GUIs open at different TTYs. the commands sudo service lightdm stop/start will stop/create a new GUI at TTY7. but how can I do the same at different TTYs or ...
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21 views

lightdm-session can't find the keystore file (i moved it), where is configured that file location?

So i'm running 13.10. For some reason i do not remember i have a keystore in a directory in my home. It appears that lightdm uses that keystore during login. So if i move the directory i am unable ...
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1answer
37 views

Unable to login from GUI?

Running 13.10 x64 on an Ubuntu laptop (System 76 Kudu Professional). When I bootup and provide my password; the screen goes black for a moment then returns to the login screen. Switching tty I am ...
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368 views

Ubuntu 14.04 - enable numlock on login [closed]

Numlock is not activated in lightdm: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1271953 Workaround for ubuntu 13.10 : sudo apt-get install numlockx gksu gedit ...
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2answers
139 views

Not able to login with LightDM

I am using Ubuntu 13.10 with Unity desktop. Unfortunately I am not able to log into my desktop. After entering correct password it keeps looping back to login. Could you please help me to sort out ...
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48 views

What's the proper way to restart X or lightdm on the command line via upstart?

I want to restart the display manager (lightdm in my case, on Ubuntu 13.10) on the command line. What's the proper way to do it? sudo /etc/init.d/lightdm restart from a terminal emulator doesn't ...
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27 views

Start desktop manager when display turns on

I have a computer that serves as some kind of HTPC. It's running XUbuntu (12.04, will upgrade in spare time) with XBMC. Everything works great, except one thing. The computer is connected to a ...
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18 views

Error installing Catalyst 13.12 proprietary drivers (Ubuntu 13.10) [duplicate]

Hoping somebody can help me out here. Fresh install of 13.10. I download and buildpkg the fglrx*.deb files from the AMD website. Everything installs correctly when you follow this patch ...
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1answer
62 views

When watching video full screen online, screen goes grey

When I have watched a video online (usualy with YouTube video's), be it with Firefox or Chrome and press the button to exit full-screen mode, my laptop screen turns grey and there seems to be nothing ...
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8 views

Run custom user interface application

I have written a Java program that I use as an information screen in a public location. It's a simple program that fetches some XML data from a web server and displays it as scrolling text. I would ...
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51 views

Start ubuntu with xrandr generated screen resolution

First of all, sorry for starting a new question. I couldn't see the forest thrue all the trees anymore is what we would say here in holland. It started with this question where I didn't know how to ...
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0answers
29 views

How to start xfce4 session inside upstart user session?

I would like to use a upstart user session to run some jobs under user control. My machine has mythbuntu installed which means I have lightdm which starts an xfce4-session. How should I replace my ...
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32 views

lightdm.conf is empty: what do i do?

I am trying to become a superuser. I am following these steps: terminal code: sudo passwd root enter my user password create root account password retype root account password terminal code: sudo ...
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3answers
69 views

Ubuntu won't let me login after software update

I'm a Ubuntu Newbie so I'll try to do my best but I'll need step by step procedures please. I have 13.10 installed and after last night's update, I can't login. The keyboard is slow to answer and ...
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0answers
30 views

How do I adjust DPI in 12.04

I think that I want (need?) to adjust my DPI. Qualitatively, text is very small and I usually find myself increasing text size in text editors, web browsers, etc. Quantitatively: The 1" square here ...
2
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0answers
24 views

x11vnc and screen help

hello all i am asking once again for a little help. here is my question i am trying to run a x11vnc the thing is i want it to be launched with a service command but not at startup and as well i want ...
2
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1answer
76 views

Switching between console and GUI in ubuntu

When in GUI mode, is there a CLI commands that kills the GUI and drops me into the console? When in CLI mode, is there a CLI command that drops me into the GUI? I found startx, but this drop me into ...
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207 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 ...
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0answers
16 views

How do I create a popup banner before login with Cinnamon on Ubuntu 13.10?

I read the original question "How do I create a popup banner before login with Lightdm?" and the answer given there was very good. However, that covers the default "Ubuntu" session with GDM. How can ...
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46 views

LightDM will not start & xserver problems Ubuntu 12.04

I've been having an issue with resume after suspend for the past week and a half or so. After waking up the lock screen would be displayed, but I would not be able to type in my password. My ...
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21 views

ubuntu update crashes desktop

as i tried to fix the problem without knowing what it is. these conclusions ive discovered conclusions: 1- problem with gnome 2- problem with cairo-dock 3- problem with gdm 4- problem with ...
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gnome crashes while updating ubuntu

tried to update Ubuntu and its seems some package's has been block by the isp provider. my problem now a lot of things had crashed one of them is window toolbar and minimize and maximize icons and ...
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0answers
63 views

LightDM configuration files

I have an XUbuntu installation that uses LightDM that for some reason unkown to me went gabooey yesterday - black screen with just the mouse pointer on booting. (TTY's still working.) After much ...
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1answer
39 views

Problem with changing login screen

I tried several time to change my log in screen by using sudo dpkg-reconfigure lightdm. I choose lightdm from here. But my log in screen is unchanged and look like below. How can I change this and ...