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

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Why do desktop / monitor screens fail after staying logged in overnight?

I am currently running Ubuntu 13.10. I experienced this same issue with Ubuntu 12.04, so I dont believe the following issue is tied to a specific release. I am using Ubuntu for work, by choice. Id ...
10
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1answer
8k views

Why don't my lightdm.conf edits affect my 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 ...
0
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1answer
174 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 ...
4
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1answer
302 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 ...
2
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1answer
33 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 ...
3
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2answers
905 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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0answers
59 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 ...
0
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1answer
51 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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0answers
391 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 ...
2
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2answers
238 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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0answers
504 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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0answers
64 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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1answer
395 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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0answers
23 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 ...
1
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1answer
304 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
200 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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0answers
183 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 ...
2
votes
3answers
1k 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
143 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
68 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
1k 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 ...
6
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2answers
2k 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
74 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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0answers
209 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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176 views

How to install Ubuntu Mate and ligthdm

I have a fresh installation of ubuntu server 32bit on my Virtualbox environment and I would like to install Mate with lightdm. I did the following process: Add the deb ...
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0answers
383 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
58 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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0answers
377 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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0answers
43 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 ...
3
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2answers
468 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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0answers
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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0answers
46 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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0answers
240 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
1k 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 ...
1
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1answer
58 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. ...
0
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1answer
161 views

How to Access Ubuntu files, while running from live cd

I wrote 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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0answers
68 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 ...
2
votes
2answers
230 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 ...
0
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2answers
209 views

Log Out problem after upgrading from 13.04 to 13.10

After I've upgraded from Ubuntu 13.04 to 13.10, I can no longer use the Session Indicator "Log Out..." menu. As soon as I click on it, the screen goes blank with no mouse or keyboard input, so I ...
2
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0answers
105 views

Login to black screen with cursor

Sometimes, after login, it goes to a black screen without any hard disk activity while mouse cursor works. I login to the terminal by pressing Ctrl + Alt + F4 and restart the X server using this ...
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0answers
56 views

How to make lightdm use tty6 instead of tty1?

I am using Ubuntu Desktop 13.10 amd64 for iMac. When the system boots up, lightdm loads gnome and hence occupies the first virtual terminal (tty1). This is the default behavior after installation. ...
3
votes
2answers
10k views

mei_me unexpected reset

Yesterday I experienced some troubles with my ubuntu installation. After reset, my system didn't start lightDM, all I saw was a black screen. I then logged in via ctrl + alt + F1 to terminal and saw ...
0
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1answer
167 views

Login screen not appearing after removing KDE [duplicate]

I've been using Ubuntu 13.10 for about a month now. I decided to give KDE a test run. Unfortunately, it installed the KDE login screen with it. I couldn't stand it, so I spent about half an hour ...
2
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0answers
188 views

.xinitrc not sourced in 13.10

I am using gnome / lightdm / ubuntu 13.10. I have some customisations I want to do in ~/.xinitrc, but it seems this file is not being sourced at startup. I've tried also with .xsessionrc and ...
2
votes
0answers
67 views

Login fails although the password is correct [duplicate]

I am using Ubuntu 12.04 32-bit. I enter my password at the default login screen and it seems to do something, but then it returns back to the same login screen and asks for the password again. Not ...
1
vote
1answer
862 views

How to add a session type button to lightdm-webkit-greeter theme?

I'm experimenting with the webkit greeter for lightdm. Ubuntu 13.10 64 bits. I want to learn to create my own themes. I noticed that the default theme does not show a language select button or a ...
2
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0answers
957 views

Multiple users over VNC - lightdm

I'm a student and I have access to a pretty powerful machine in the University lab. I've been trying to allow my roommates to remotely login to my machine on an account that I've created so that they ...
0
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1answer
270 views

Add existing user to Unity

Short story How can set Unity as desktop environment for an user created with Shell? Long story On a VM running Ubuntu 12.04 configured as LAMP, I need to use the desktop environment Unity for the ...
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0answers
40 views

Does “Switch Account” in Ubuntu 13.04 logs out the first account upon switching?

I have 2 accounts set up on my laptop running 13.04. When I click the gear icon and select lock/switch account and log into the second account, upon returning the the first account I noticed that I ...
2
votes
3answers
3k views

Can't login in from LightDM

But just LightDM. It worked this morning, just does not seem to be working this evening. This seems to occurred after a shutdown after a wakeup from hibernation. I always get a password denied sort of ...