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

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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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14 views

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

I am building 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. It is giving my LDAP ...
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13 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
18 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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25 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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9 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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29 views

Right-click copy with x11vnc server [on hold]

Noob here. Can't get right-click copy to work with x11vnc server. I am running Ubuntu 14.04 Beta2 LTS with the default lightdm and unity desktop, and currently have x11vnc server starting before ...
7
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1answer
61 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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21 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
43 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, espacially for pam. I am using libpam-fprintd to allow using my fingerprint reader when ...
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1answer
16 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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6 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
34 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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17 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
33 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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1answer
175 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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1answer
96 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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37 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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25 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
43 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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7 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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31 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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24 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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26 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
54 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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27 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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23 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
70 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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57 views

LightDM is not working with selinux - enforcing mode [closed]

I am using ubuntu-12.04.2 LTS, it was working pretty well. But then I tried to change my system with selinux as enforcing mode. Then lightDM stopped working. So I could not login my system on GUI.
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122 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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15 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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42 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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18 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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13 views

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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49 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
37 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 ...
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128 views

Can't login to Ubuntu Gnome 13.10. Login screen doesn't appear

I had been using Ubuntu Gnome for over 3 months now, without any issues. Today, when I tried to boot the os, I couldn't see the login screen. Instead, it shows the Screen with Gnome logo and it isn't ...
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14 views

X does not start on boot

After system upgrade to 13.10 there is no GUI at startup. I can login successfully and startx or start lightdm, but it should be done automatically. I tried following these instructions and did: cat ...
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1answer
83 views

13.10: Can't log in

So I've tried just about every fix I could find out there, but I still can't log in to my account. When I enter the correct password, the screen goes black for about a second, the cursor disappears, ...
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20 views

login screen don't accept my valid password? [duplicate]

After typing in my password, which I am sure is valid and spelled correctly, ubuntu redirects me to the login screen again and again. I don't get the usual 'Incorrect Password' notice or any other ...
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21 views

restarting lightdm in ubuntu 12.04 fails

I am running a laptop with Ubuntu 12.04. At work I have a 1080p monitor I attach via HDMI. I notice that if I am at home just working with the laptop screen and then put the laptop to sleep (just by ...
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46 views

Lightdm will not install Ubuntu 12.04

Ok, I am new to Ubuntu. Lightdm stopped working, so I pressed Ctrl + Alt + F1 to open up the graphical log in screen and typed in sudo apt-get remove lightdm which worked but when I type sudo ...
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2answers
81 views

How can I change the Kubuntu background from default?

Can SOMEONE please tell me how to change the default background in Kubuntu 12.04? I have managed to select a rather nice wallpaper for my desktop, but I CANNOT change the background for the splash ...
0
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1answer
33 views

Unable to login through LightDM

After executing the following script (I removed all occurrences of tmp, mind you. Or at least I thought I did) and rebooting the system, I'm no longer able to log in through the display manager. ...
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1answer
36 views

How to Access Ubuntu files, while running from live cd

I write this Code greeter-show-manual-login=true in my Ubuntu etc/lightDM.conf, but when I restart my System ubuntu can't load it! Now I access this file with live cd, but when I open it and delete ...
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40 views

Monitor stays black after plugging it in

I am running Ubuntu 12.04 on a PC using lightdm. When I have the monitor plugged in from the start the system boots just fine and everything works as expected. When I plug off the monitor, the system ...
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38 views

Close lightdm and return to prompt (Ubuntu 12.04)

My server is configured with Ubuntu Server 12.04 and Lubuntu Minimal. I have grub set to show only text upon boot. When I must use the VNC I either use my VPS's recovery VNC or I enable the VNC ...
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30 views

Stuck in TTY, lightdm error?

Im running Ubuntu 12.04 on virtualbox. I just updated to the latest version of virtual box, reinstalled any new guest additions, and all hell broke loose. Fist Ubuntu would restart in what I later ...
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2answers
75 views

How do I restore Boot GUI and Login of Ubuntu 13.10 to the original?

Okay, so I installed a few extra desktop environments, one of which was the Xubuntu pack, and it replaced my login screen and Boot GUI as mentioned. I made the mistake of trying to purge Lightdm and ...