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

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How can I start an Xvnc server at boot?

I used to have a Xvnc server that was running at boot on my Ubuntu 9.04 OS and I would like to do the same with 11.10. The procedure I followed at the time was this one. There was some configuration ...
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1answer
34 views

How can I list the WM manager sessions available from the command line?

How can I list the WM manager sessions available from the command line? I want to know what sessions are available to pass to thr lightdm-set-defaults utility.
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How to install pantheon-greeter in 13.04 Raring?

Refer here: QUESTION Those are the exact step I did in my install - a raring x64 server install + all needed xorg packages to run a GUI + MATE 1.6. Basic lightdm + unity-greeter is flawless, as well ...
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How can I use custom wallpapers for the login screen?

I recently Installed 12.10 version and I loved it! But the there's something weird with Wallpapers. As long as I use a wallpaper from the /usr/share/backgrounds folder (I use the "appearance" dialog ...
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why am i not getting my ubuntu 12.10 login screen back after uninstalling xubuntu 12.10?

I installed xubuntu, then uninstalled it completely, but I am not getting my original log-in screen back. It's a simple log-in screen with the computer's icon, user name, password and session details ...
2
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1answer
208 views

unity greeter not showing selector

i have installed gnome3.7 from gnome3 ppa and i have removed evolution using sudo apt-get remove evolution* and accidentally it removed gnome, gnome-shell and bunch of other things and now when i ...
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4answers
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“the system is running in low graphics mode” I get this message when I boot my ubuntu

I had got into a serious problem while solving my the system is running in low graphics mode using this link. This guy and I have almost same Nvidia card. Mine is just bit more newer, so when I was ...
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1answer
131 views

Launch a program when X starts

I want to launch a program when X (not unity/gnome/etc) starts. In particular, I want to launch xset r 105 when lightdm starts. Is there a way to do it? I tried writing this into ~/.xsessionrc: ...
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201 views

How could I customize LightDM to load some Custom code I made?

I've written a code in C++ for a bio-metric lock which I want to add to the log in screen beside the password. Any idea from where should I start?
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1answer
251 views

Using MCE remote at Unity Greeter?

Is there any way to get LightDM to see a MCE remote as an input device at the greeter screen? I have three accounts -- my user account, MythTV, and XBMC and I'd like to be able to switch between these ...
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Change LightDM session name entries for Desktop Environments?

When using LightDM, sessions, (not usernames) are named in a way I would like to change, for example, Ubuntu is Unity 3D, and I would like to name it that way, the following to: Ubuntu 2d to Unity ...
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Ubuntu Wont Login

I have Ubuntu 11.10 installed... for some unknown reason it wont log me in. entering the password returns me to the login screen immediately i googled for solution and applied the following and yet ...
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Monitor not detected - low resolution only

I just installed Ubuntu 11.1 on my desktop pc. It was a clean install, no upgrading. I have a Samsung Syncmaster BX2450 connected to the PC. My problem is that I cannot make Ubuntu recognize my ...
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1answer
312 views

Is “gdmflexiserver” part of the default installation?

While playing around, I discovered a folder in my $PATH that I did not recognize: $ echo $PATH /usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games $ ls ...
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2answers
137 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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1answer
74 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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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 ...
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1answer
240 views

Ubuntu 12.04 boots to login screen but (I think) X.org crashes on login. Help Appreciated! [duplicate]

I've been running Ubuntu 12.04 since it's debut in 2012 without a single problem. Today I just ran sudo apt-key update && sudo apt-get update and then I rebooted my computer. After rebooting ...
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Ubuntu 13.04 - can't login to Unity, keep going back to login screen with all users

today I've updated openssl and libssl (automatic update). After reboot I can't login with any user (even with Guest or new one) into X. I've tried with installing gdm, gnome-session-fallback - no ...
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1answer
146 views

Background missing in loginscreen and in guest session.

Yesterday I followed this answer on "How do I add customized wallpapers so they appear in the dynamic unity greeter?" to make my wallpaper appear in the login screen. But instead of only changing the ...
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1answer
180 views

Startup applications can be run on the login screen stack without logging in?

I'm going to set up my computer to be turned on at night and it will automatically start downloading. For security reasons, I do not want to set up Ubuntu to automatically login! the problem is login ...
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482 views

Can I reload monitors.xml without restarting LightDM?

I was writing myself a short script to turn off my laptops monitor in order to only use the bigger external monitor, as I don't always want to use Unity GUI. But after turning the laptop monitor back ...
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542 views

switcheroo to discrete turns off backlight on laptop screen

AMD cedar/ Intel ironlake hybrid graphics. Custom kernel 3.8.3. Free radeon xorg drivers. When I switch from integrated to discrete, I do a killall lightdm and X doesn't automatically respawn like it ...
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1answer
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LightDM: “Failed during authentication”

After entering login info in lightdm, screen blacks out for a second and returns back to the login screen again. However, I'm able to login through TTY and gdm without any problem. As the log file at ...
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1answer
142 views

lightdm execute script as user

At our computer department we need to run a script with user rights wenn the user logs in. Adding the script to .config/autostart is not an option since the script must not be disabled by the user. ...
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122 views

Should switching users switch TTY as well?

In trying to troubleshoot user switching hangs and irregularity's I noticed if I log in as user A then switch to user B, and then press, (TTY7) will take me directly back to the unlock prompt for ...
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962 views

how do I remove the last connected users from the lightdm greeter list

With gdm3, I was able to remove the last connected users from the list by removing the file '/var/log/ConsoleKit/history' With lightdm, the last users appears even when : removing ...
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How to re-enable a disabled standard user account?

Disabled a standard user account but did not opt to delete files. Later, tried to enable the account. At that time, a password had to be selected so entered a different one from the earlier one. Now, ...
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Unsolved Mystery: “mountall: Disconnected from Plymouth”

When I boot, it goes straight into tty1. I have tried everything I could find online to solve this problem. I believe it has something to do with the Nvidia drivers. But reinstalling them in every ...
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1answer
371 views

System boots with brightness level set to the lowest setting

After selecting the OS to load with grub, 12.04 boots to a dark screen. It seems a minor problem, because I only have to press the brightening key on may keyboard to cast some light. But every single ...
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2answers
709 views

How do I return to default wallpaper on login screen in LightDM?

With the change to 12.04 came the new feature of having the login screen matching the selected user's wallpaper. It's a cool feature, but not for everyone. I'd like to go the other way and go back to ...
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1answer
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How can I get a manually created user to show up on the log in screen?

I need to create a user manually (need a specific uid and default group), but I would also like to be able to log in via the standard 12.04 login (lightdm). I cannot figure out a way to do both of ...
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Why am I unable to restart or shutdown my computer from the LightDM login screen? [closed]

I'm not sure whether this is a bug (in which case I'll submit a report) or I'm doing something silly! My problem is that I cannot restart or shutdown my computer from the LightDM login screen, this ...
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1answer
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lightDm will not start

Having recently installed ubuntu 11.10 on a new computer after approximately a week of use I experienced a freeze on start-up. I think some updates where installed on previous session but I can't ...
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1answer
782 views

Is it possible to use auto-login in Lightdm even with encrypted home?

Configuring the auto-login in lightdm is possible as answered here. I tried but, still I'm not able to auto-login. It seems as I haven't configured auto-login. Is this because my home folder is ...
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1answer
447 views

LightDM and the need for a greeter in set-top box environment

Lightdm can be used in a set-top box environment, ie starting a configured X session as a configured user; in this case all data will be retrieved from the config file. Can lightdm work/be installed ...
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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 ...
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1answer
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Login loop with gdm and lightdm, startx works

I am running 12.10. Attempting to login via gdm lands me back at the login page. The behaviour is the same for when I switched to lightdm. Logging in with guest is fine, and logging in with a test ...
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4answers
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Not able to login through GUI in Ubuntu 12.04

I'm unable to login through GUI. On typing the correct password, I get a black screen and back to login screen. However, when tried with tty1 I was logged in. Then I tried reinstalling lightdm and ...
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2answers
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How can I revert ubuntu settings after gnome-shell install

I have Ubuntu 13.04 32 bit. Recently, I installed Gnome 3 because I wanted to try something new. It looked and felt awful, so I removed it via ppa-purge. Unfortunately, some of my setting were ...
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2answers
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lightdm fail to start automatically after last update

I have 12.04 LTS, I don't think I installed anything extraordinary lately, (just uninstalled lxc-docker), but after last automatic update I am left with console. I can do service lightdm start and ...
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1answer
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Problem with LightDM & KDM

I'm a Kubuntu 12.10 x86_64 user. I recently found an exquisite KDM theme on (name of KDE artwork site). However, as the default display manager in Kubuntu is LightDM, I installed KDM with: sudo ...
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643 views

GUI is not displayed anymore

I am running 12.04 LTS on a VM. I encountered a problem with the screen being black and the familiar orange background showing for a fraction of a second when clicking or resizing the screen. I had to ...
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4answers
868 views

LightDM Backgroud is a simple purple radiant

It seems after I tried to change the login screen background with Ubuntu Tweak, the greeter's background stays a simple purple background with just the spots.. I tried using dconf-editor, rechanging ...
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2answers
3k views

lightdm.conf content erased, now stuck in low graphics mode [closed]

This evening I was attempting to disable the guest account and something went awry. Currently on boot Ubuntu enters low graphics mode. No specific error report. What did I do? Before this error ...
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How do I remove the Accessibility options/icon from the login screen?

Have young kids that manage to foul up Ubuntu by playing with the universal access options at the login screen. Tried following the directions for 10.04 but the stated directories don't exist in 12.04 ...
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Lightdm won't start Unity automatically

The problem I have is that after I have entered my username and password, all I get is a blank desktop. No launcher and I am unable to click anything. After some googling around, I switch to a ...
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1answer
740 views

LightDM allows only Russian keyboard layout at login

I upgraded to 12.04 and now I can't log in because Ubuntu only allows Russian keyboard layout at login, but my password has Latin letters in it. Guest session works, and allows other languages, but I ...
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VMware tools easy install relic

I made a fresh 'easy install' of 12.04 on vmware workstation. This is yet another problem (quite a few have been asked here.) with the vmware tools installation. I managed to install vmware tools ...
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Screen connected to the 'mini-displayport' doesn't work anymore on an Apple Monitor

I am running Ubuntu on a Mac Pro with a Apple monitor. The machine has a GeForce GT 120 (aka GeForce 9500GT). The DVI output is still working, but the screen connected to the 'mini-displayport' ...