LightDM is a lightweight X11 display manager. It can use different greeters in the style of different desktop environments.

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19
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1answer
25k views

What is LightDM and GDM

What is LightDM and GDM? In Linux operating system I heard both but I don't know about them and what is called? Where they are used? Are they related to display?
9
votes
1answer
15k views

~/.xinitrc not being run

I am not able to run my ~/.xinitrc (~/.xsession) scripts when logging into my computer. I'm using Xubuntu 12.10 with vanilla lightgm as the login manager. Both these files have the right permission ...
6
votes
1answer
797 views

Does restarting of Display Manager (e.g lightdm) restart X server as well?

If I restart the Display Manager, e.g lightdm, will X be restarted as well ?
5
votes
1answer
225 views

Lightdm service - contradictory results for `status` command

When I run in my gnome-terminal: service lightdm status everything looks OK and it is as expected: lightdm start/running, process 1221 But when I run: service --status-all 2>&1 | grep ...
5
votes
2answers
13k views

Lightdm won't start automatically on boot

Every time I boot my PC Ubuntu keeps dropping me to TTY 1 where I have to log in and then do sudo lightdm start just to log in again, which is very annoying I have already tried removing and ...
5
votes
1answer
518 views

How do I get sound to work outside lightdm

If for whatever reason I sudo stop lightdm running on mint and just use a simple xinit session with mutter, is there some way I can get sound to work? Whenever I do that, it seems there's no sound.
5
votes
0answers
943 views

Autostart all LightDM seats and show one as default

I configured a media-center server running Debian with LightDM, Leapcast and Plex. What I want to accomplish is the following. There should be three LightDM seats, one default seat on which I can ...
4
votes
3answers
559 views

How to disable X server autostart in Debian Jessie?

I have a remote machine running Debian 8 (Jessie) with lightdm installed. I want it to start in no-GUI mode, but I don't want to remove all X-related stuff to still be able to run it though SSH with ...
4
votes
1answer
5k views

Change the keyboard layout in LightDM

I installed LightDM on an Arch Linux system (using pacman) and it runs fine, except, that if I try to type a special character (like "@", "$", ...) in the user or password field it doesn't do ...
4
votes
1answer
75 views

When is the appropriate time to start Redshift using upstart?

I have been trying to get Redshift to start before login so that the bright welcome screen does not blind me, in particular when switching users. Running Redshift as a service does not seem fully ...
4
votes
1answer
6k views

Configure Lightdm (GTK) for last saved or a default user and focus on password?

I've looked at the man pages and the configuration files but found nothing (but maybe I'm missing something). I see only many options for autologin. From a few googles I've read that the KDE version ...
4
votes
0answers
53 views

Wrong role and type on login

I'm on an Ubuntu 14.04 derivative, elementary OS Freya. I have installed and configured SELinux using the selinux-policy-default package, which contains a lot of modules. I've also added my user to ...
3
votes
3answers
8k views

Locking the screen via CLI?

Is there any way that I can lock the screen CLI-style? I'm trying to target as many desktop managers as possible (mostly LightDM, but GDM, KDM, SLiM, XScreensaver, etc. would be great too), but I can ...
3
votes
1answer
26 views

Can't export environment variables on X session start

My setup is: Debian testing (stretch), up to date LightDM with autologin enabled Awesome window manager bash, in ROXTerm or XTerm I don't seem to be able to set own environment variables and get ...
3
votes
1answer
5k views

Disable login screen on Ubuntu 15.04 (Vivid Vervet)

In 15.04 Vivid Vervet, how do I disable the login screen so that it drops me into a console right off the bat? Back on 14.04, I did this by uninstalling lightdm, but when I tried that on 15.04, the ...
3
votes
1answer
5k views

ubuntu like lightdm in arch linux

I have just installed archlinux on a virtual machine and I managed to install lightdm by following the instructions given in https://wiki.archlinux.org/index.php/LightDM ...
3
votes
2answers
14k views

Lightdm user session settings on Ubuntu

Lightdm is displayed properly but after entering a password and clicking login, I see the screen blink and lightdm window re-appears and asks to log in as if nothing happened. Configs user@laptop:~$ ...
3
votes
0answers
4k views

Autologin question with LightDM & Ubuntu 14.04

I have set up a batch of workstations at a library using DRBL. These workstations are running Ubuntu 14.04. I want these workstations to autologin to a specific user (a different one for each ...
3
votes
2answers
2k views

Need to auto-login after logout on ubuntu

I've set up a kiosk using Ubuntu 12.04, and I'd like to have it autologin after a user logs out or if the screen locks, in case someone manages to get back to lightdm or tries to login to the ...
2
votes
4answers
1k views

How can I disable lightdm auto-login from the command-line when isn't possible to get a GUI session?

Suppose auto-login to a session is active in Ubuntu. So there will not be an opportunity to select a session (e.g gnome, unity, kde, etc). But if the environment is corrupted there is no way to escape ...
2
votes
1answer
212 views

Who started xterm in my debian xterm+lightdm kiosk system?

I have stripped my full desktop debian 7 x64 to the bare, leaving just xorg and lightdm for a kiosk application. I have changed the lighdm configuration to auto-login a user. When I boot, this works ...
2
votes
1answer
836 views

What are the commands to logout and shutdown with a session manager?

I decided to write my own DE using these instructions here it worked and I can login however I didn't use a panel so I don't have a logout button or a session manager. I've decided to write my own ...
2
votes
0answers
1k views

kernel: bcm2708_fb soc:fb: Unknown ioctl 0x40187a22

I have a Raspberry Pi running Raspbian. Towards the end of the startup log, I see this error. I believe it has been there a while, and I'm not sure what it may imply. kernel: bcm2708_fb soc:fb: ...
2
votes
0answers
109 views

How to run a script after screen unlock under Gnome 3 with LightDM?

I'm on ArchLinux using Gnome 3, LightDM and Antergos/gnome-shell-extension-status-menu-buttons with light locker. I have a script that I need to run after every screen unlock, but so far I didn't ...
2
votes
0answers
296 views

Synergy isn't working anymore after lock screen (LightDM)

I'm trying to get Synergy, which is a keyboard and mouse sharing tool, to autostart on a second desktop. I'm using the distro BunsenLabs which is based on Debian Jessie on both desktops, and so I have ...
2
votes
0answers
87 views

Lightdm Won't Start in Test Mode With OpenRC

I have a funtoo installation and I recently did sudo emerge x11-misc/lightdm which appeared to work fine, but attempting to start lightdm in test mode with sudo lightdm --test-mode gives this: ** ...
2
votes
0answers
131 views

KDE / LightDM - disable multiple users being logged in / 'switch user'

How can I disable the 'switch user' function in the kde start menu, so that only one user can be logged in at the same time?
2
votes
3answers
36k views

Enable root login from GUI

I just installed Mint 16 and I see that root user is not available at login screen. I log in from normal user and went to "Login Window" option and there I set "Allow root login". Then I restarted the ...
2
votes
0answers
4k views

lightdm doesn't work after installing lightdm-unity-greeter on arch

I was using lightdm with the lightdm-gtk-greeter just fine, however I tried to install the unity greeter and now it shows me a black screen with a blinking cursor (I have to ctr+alt+1 and login ...
2
votes
1answer
1k views

LightDM shows a black screen in my Arch Guest VM

I'm trying to get LightDM to work but for some reason it just shows up a black screen when I get to the user selection screen, GDM works fine though. I followed the ArchWiki doc and it's strange ...
1
vote
2answers
3k views

Set lightdm user picture

How can I set user pictures on Debian with lightdm? Xfce does not seem to have a GUI facility for user management at all. I have tried installing gnome-system tools that contains user management ...
1
vote
1answer
872 views

Different behaviour of systemctl suspend when executed via i3 wm key binding

I am using the i3 tiling windows manager in combination with light-locker to lock the screen. Light-locker displays a lock message on the locked TTY and shows the password screen on a second TTY. ...
1
vote
3answers
524 views

Screwed up the lightdm.conf file, now what?

I screwed up the lightdm.conf file as superuser. What I was trying to do: I tried to insert a command (xbacklight -set 50) that sets my monitor brightness at the lightdm config file. Now when I start ...
1
vote
1answer
388 views

Run service after logging in on an X session

I am using Ubuntu 12.04. I want to automatically start a service after login with LightDM. This service is not meant to start on boot, but after X is initialized.
1
vote
1answer
658 views

Display dialog from pam_exec environment at login?

I'm using pam_exec to do some root tasks. They take some time, and I'd like to tell the user to wait a moment. I'm doing the tasks there, and not later, because I need: Root permissions To rsync ...
1
vote
1answer
922 views

On a machine with multiple Desktop Environments set, how is the default DE configured?

I am provisioning systems with multiple Desktop Environments (Ubuntu 14.04, with Unity and Xfce). I want to change the default DE to Xfce from a non-interactive script (for autologin with lightdm). ...
1
vote
2answers
197 views

What configuration determines which Desktop Environment to run?

I have a system with multiple Desktop Environments installed (Ubuntu 14.04 with Unity and Xfce). I would like to configure (with a non-interactive script) a particular DE for a particular user. How ...
1
vote
0answers
25 views

Killing a secondary Xorg stops display manager

My computer runs on Debian Stretch. For testing GUI applications purpose, I'm using a second instance of Xorg on display :X (X != 0). After upgrading from jessie to stretch. Killing the secondary Xorg ...
1
vote
0answers
47 views

Trigger a GTK application from CHROOT during LightDM startup

I am trying run a GTK application with chrooted environment. Mentioned are the lightdm settings which I have set. System configuration: OS : Debian 8 chroot FS: Debian 6 Windows manager : LXDE ...
1
vote
0answers
205 views

multiseat, is it possible to access virtual terminals on any seat?

My current multiseat config works fine, except for one thing : I cant access virtual terminal on either seat. I think it comes from the fact I launch X through my DM (LightDM) with the -sharevts ...
1
vote
2answers
834 views

cannot change my login screen background

I cannot change my login screen background to the desktop background in my elementary os which is based on ubuntu. I have decrypted my home folder according to this link: ...
1
vote
1answer
5k views

lightdm fails to start properly on boot (works from terminal)

I have elementaryOS and after updated my Kernel to 3.11 I get black screen after boot. If I type Ctrl + Alt + F1 to go to command prompt and then do sudo service lightdm restart, lightdm starts ...
1
vote
0answers
1k views

Lightdm does not start after using webkit greeter

I am using lightdm. And I compiled the lightdm-webkit-greeter from source. Here are my /etc/lightdmlightdm.conf settings: [LightDM] [SeatDefaults] xserver-allow-tcp=false ...
1
vote
3answers
2k views

Change lightdm background

Seen similar question many times on AskUbuntu, but most answers was bout unity-helpers or gconf ...canonical... etc, so this actually doesn't seem to work. The problem is that I decided to move to ...
1
vote
1answer
505 views

KDE and LightDM on ArchLiux

Is it possible to use LightDM with KDE on Archlinux? Wiki says Basically there are two ways of starting KDE. Using KDM or xinitrc. I use also awesome WM and XFCE, so I'd like to use LightDM ...
0
votes
1answer
117 views

Need to stop the automatic start of login manager (Antergos, GNOME)

I'm trying to install an NVIDIA Driver, but I must turn off the Xserver first. I've tried a lot of methods I found online, but none seem to work. I'm using Antergos with GNOME. Ctrl + Alt + ...
0
votes
0answers
10 views

Desktop manager crashes when launching PyCharm

Ubuntu 14.04, this happens with every kernel older than 4.0.0 Corresponding syslog entries: Apr 30 16:08:37 insanity gnome-session[2268]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource ...
0
votes
1answer
16 views

How do I obtain the dependency fcitx-dbus?

When I run fcitx, I get the following errors. $ (INFO-3262 /build/buildd/fcitx-4.2.8.3/src/lib/fcitx/addon.c:151) Load Addon Config File:fcitx-dbus.conf (INFO-3262 ...
0
votes
0answers
81 views

LightDM fails to load after system upgrade in Arch x64

UPDATE Kernel 4.4.5 itself is buggy. Downgrading to 4.4.3 solves the issue. Bug report has been filed. Today morning I performed system upgrade (07:44 AM IST). However, after restart (kernel was also ...
0
votes
0answers
42 views

xrandr not scaling / transforming display

I am trying to work out how to use xrandr transform and other options (Ubuntu 14.04.4, ATI Radeon HD5450 graphics, open source driver, lightdm). I have found the following (man xrandr): ... in other ...