Questions tagged [lightdm]

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

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American megatrends logo is displayed between plymouth end and lightdm start

In order to create an home made kiosk system I installed Ubuntu 20.04 Server. I configured plymouth to display my custom theme and set up the auto login using LightDM. After the auto-login is complete ...
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Manjaro-i3 on Hyper-V: skip xorg login and 'unable to get connection to the message bus session' error

Using the instructions at https://wiki.archlinux.org/index.php/Hyper-V I have installed a Manjaro-i3 virtual machine on a Windows 10 Pro host. On booting, lightdm failed to start, which I fixed ...
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Ridiculously large amounts of RAM used (by lightdm)

Lately, my Arch setup is experiencing some problems. For one, a command Xorg :0 -seat seat0 -auth /run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch takes up about 25% of RAM (htop tells me this). ...
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Lightdm-gtk-greeter keeps looping while attempting to log in as non-root user

I am using Arch Linux with a virtual machine and have used i3-wm for a while. I decided to try out dwm, which I installed on the same system. I ran the command sudo startx to run dwm. It didn't work ...
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LightDM: how to distinguish users with the same name?

I am using LightDM with the Slick Greeter. In my system, I have two user accounts for myself. They have the same name, but different user names. I want to separate private and professional work. ...
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47 views

Mint Cinnamon shows login screen but not desktop

Yesterday I updated my computer using apt and walked away to let it run. I ended up being away from it for a few hours. When I got back I saw that it was done, so I closed the terminal and shut the ...
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49 views

Arch Linux Not Working After I Change Display Manager To Lightdm

So I thought about switching to LightDM. I switched by doing sudo systemctl disable sddm sudo systemctl enable lightdm Then I restarted arch linux and everything ran fine. But then I thought about ...
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I cannot access XFCE when launched via LightDM

As a personal project I decided to start building a Linux From Scratch (System V Edition, 9.1) on a virtual machine. Everything went out correctly until the moment of entering the system through ...
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1answer
28 views

No HDMI signal on TTY7 when running Buster + NVIDIA GT 640 + nouveau + 4K UHD

Symptom Upgrading from a WQHD ViewSonic display to a giant 4K UHD ViewSonic display yields a No Signal error (via HDMI) after my workstation successfully makes it through GRUB and Plymouth screens. ...
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Unable to use mouse and keyboard in Lightdm test mode

I have a Debian Buster as a VirtualBox guest, and when I run /usr/bin/lightdm --test-mode --debug I am unable to use both mouse and keyboard. (Ctrl+Shift does not help) it outputs: [+0.00s] DEBUG: ...
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Set certain desktop environment as default, and revert back to it after reboot

first of all, let me put a few things out of the way: I'm about to manage a few (semi-)public workstations with Linux Mint 20 that a lot of different people have access to. And you know people; they ...
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90 views

GNOME Desktop Environment Initialization Delay

Specs Display Manager: lightdm 1.30.0 Desktop Environment: gnome 3.36.3 Distro: Ubuntu 20.04 Focal Fossa Problem/Background Once I login, all I can see (for at least a minute) is the wallpaper and ...
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Multiple issues with LXDE/LightDM after upgrading to Debian 10

None of these issues happened on Debian 9, and they seem related, so I'm thinking that they may be caused by some single change or misconfiguration. Graphics drivers seem to be fine, as 2D and 3D ...
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41 views

Copying picture to /usr/share/backgrounds/ with a script [closed]

I'm trying to copy a picture which gets selected with another script to /usr/share/background/ so that I can use it with lightdm, but I can't get it to work. I tried the usual cp "$file" /...
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How to run script when switching to specific (already logged in) user

There's plenty of info out there on how to run a script at login (add it to .xprofile etc.), but I'm looking for a solution that will run a script/command not just at login but also every time a ...
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GDM does not start on boot

GDM does not start on boot: I'm having same problem I also read tis problem that you solved before, I tried that but got nothing. Please help me im stuck in try.
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cinnamon-screensaver on linux mint 20 xfce

I am using linux mint 20 xfce. I love cinnamon screensaver and installed it. But it does not work for me. How can I use it? Thanks.
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177 views

How to start user session (login user graphically) from CLI?

We can use loginctl in modern distributions with systemctl to control the user sessions, seats etc. E.g. with it is is trivial to logout users and works on all desktop environments. However, can I ...
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212 views

Deepin Linux: Failed to start light display manager

I'm getting stuck when starting my laptop. It always stops on a black screen: failed to start Light Display Manager See 'system.ctl status lightdm.service' for details I've tried to search any kind ...
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Why does xrandr pick a different DPI if called by lightdm?

I have a script which calls xrandr and specifies my screen layout: #!/bin/sh xrandr --output DVI-D-0 --off --output HDMI-0 --off --output DP-0 --off --output DP-1 --off --output DP-2 --mode 2560x1440 -...
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1answer
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Debian 10: `startx` on console terminal via ssh produces error

As I understand it a "console terminal/user" is a user logged into a "console terminal" (CTRL+ALT+ {F1 to F7}) Heres a sequence of what I've done Boot local machine Login on login ...
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How can I change the resolution of the login screen?

I have Linux Mint 20 running on my laptop. I have a dual monitor setup connected by VGA. The laptop monitor is 1366x768 and the external one is 1360x768. I went through a lot of hoops to get the ...
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Mutt doesn't open my GPG passwords in DWM unless I start it from lightdm

I use Pass for my password management. I also use Xubuntu. In a nutshell: when I use xfce4 (xubuntu-session): both mbsync cronjob and sending emails with neomutt work without any problem. Everything ...
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326 views

LightDM refuses to start after an emergency reboot

One of my usual applications started to consume the CPU and my PC was frozen. I initiated a reboot with SysRq + R,E,I,S,U,B, like I do in such times. When the PC is booted, LightDM refused to start: ...
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Can't move cursor to top third part of the screen

Sometimes i cannot move the cursor to the top third part of the screen and i have to restart lightDM. This seems so strange and i don't even know where to start looking.
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263 views

Faulty modules in my display manager (?) Linux Mint 19.3

So I wanted to know what display manager is currently used on my newly installed Linux Mint... Surfed communities and found this command: $ systemctl status display-manager I found out that my ...
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2answers
258 views

How do I find out the display manager info on Fedora 32 Mate?

It's my first time to use Linux, Fedora and Mate environment. I want to change the default login screen (mainly the background), but I couldn't find the way to do it. I have done some research, and ...
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1answer
177 views

LightDM sometimes resumes with a blank display after suspend

I'm suspending my laptop very often, by manually calling pm-suspend command. Most of the times it works without problems. However, sometimes it resumes with a blank screen. Either a reboot or ...
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59 views

Linux mint lightdm not showing taskbar after logging in?

I am running Linux Mint 19.3 Cinnamon. I have been running with the lightdm interface for the last two weeks without issue, however this morning when I booted with lightdm it was stuck on the login ...
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1answer
56 views

Fedora fails to start and lost shell access

Linux Dist: Fedora 31 Mate compiz. Dual boot with win10. (UEFI secure boot enabled). 1) While shutting down the system, an unusual errors showed up in the screen. So the problem started with Lightdm....
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1answer
287 views

User can't login in lightdm only root can

I've installed arch, and lighDM with awesome window manager. Everything runs okay.If I login as root, awesome load and works but if I login with the user I've created it attemps to log, clean te ...
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Linux Mint 19.2 freezes and crashes when playing videos online

Can't play any video from the internet, no youtube, dailymotion etc. Tried playing youtube videos through vlc, same result. Sometimes, mint just crashes and reboots and most of the times it gets stuck,...
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How can I limit number of available keyboard layouts in lightdm-gtk-greeter?

I set "layout" indicator in lightdm-gtk-greeter settings. However, all available layouts are displayed to choose. This is not easy to select needed one. How can I limit number of available options?
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89 views

Why language change in lightdm-gtk-greeter is taken into account on second login?

I am using lightdm with Xfce and when I change language in the greater and login Xfce uses old setting. However, after logout and another login language is properly changed and Xfce uses intended ...
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28 views

Why don't my wtmp/utmp reset the user count?

On a normal working Linux machine the command w report 2 users(because 2 users are connected) w 19:23:19 up 1:53, 2 users, load average: 0,44, 0,63, 0,81 USER TTY FROM LOGIN@ ...
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31 views

how to restore an active x-server session?

I accidentally lost my active session by some special key combination which return me to a login screen. That session contain my works for 6 hours. I am using linux-mint 18.3 with kernel 4.15.0-76-...
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91 views

Lightdm Webkit2 greeter not loading - 'Error running javascript'?

I am running Arch Linux ARM on an armv7 Chromebook C201. I am currently experiencing a problem with the lightdm-webkit2-greeter not loading up properly on boot. I have checked /etc/lightdm/lightdm....
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91 views

Debian 10 auto login - lightdmcfg repo issue

I am following along with How to autologin in debian 10?. As the snip shows, this ends up pointing to a Ubuntu repo which my installation of Debian 10 fails to find. What's the fix for this? root@...
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541 views

How to restart Cinnamon after screen unlock

I have an issue with Cinnamon that manifests itself after a long idle period, when I use the computer after a few hours of idle, the CPU, memory, etc. all seem to be fine for Cinnamon, but every ...
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2k views

XUbuntu LightDM login loop

I am currently using Ubuntu 18.04.3 LTS, and I randomly got a login loop upon restarting my PC. The content of my /var/log/lightdm/lightdm.log is the following: Greeter connected version 1.27.0 api=1 ...
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Light-locker : How To Disable Wait Time?

I am using LightDM (light-locker) and Xfce. Why do I need to wait a few seconds before logging in? How to disable the waiting time? (Is it possible?) Unfortunately, man light-locker doesn't contain ...
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2answers
3k views

How do I re-enable the lightdm.service?

At some point, in the past, I must have disabled lightdm service with: systemctl disable lightdm.service or something similar on my Debian with Cinnamon desktop. Unfortunately, I will now need it, ...
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21 views

Exit X using bash script

Well, I'm playing with a Raspberry pi 3 and due to hardware limitations I have to exit X to execute some emulators(using framebuffer), for example. I want to create a bash script to exit lightdm ...
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1answer
708 views

How can I get lightdm to start xmonad?

I've been running nixos with xmonad and using startx to start the xserver. However I decided I would like to have a greeter. I first tried sddm by disabling startx and enabling sddm services....
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127 views

Lightdm displaying wrong username

I have an Ubuntu 19.10-based distro with LightDM installed. I changed the username recently, but lightdm keeps displaying the old username. Is there a way I can fix this? I have tried fiddling with /...
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1answer
496 views

Why does lightdm source my .profile even though my login shell is zsh?

I am using Linux Mint 19.2 Cinnamon, with ZSH as login shell for my user. When I login, I see that my $PATH includes $HOME/.local/bin two times, even though it is specified only once across all my ...
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2answers
27 views

lightdm port to listen if it is up

I am making an ansible check to see if lightdm is up before continuing a task in my playbook. Is there a port number that lightdm creates once it's up?
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1answer
450 views

Linux Mint 19.2 cinnamon desktop becomes very sluggish if left logged in for 24hrs

Running Linux mint 19.2 with all the latest updates and the video drivers from NVIDIA installed. Upon logging in, the desktop is very snappy, even with multiple windows open. Switching windows is ...
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140 views

Can i make the LightDM greeter wider?

I am using LightDM on my work laptop (under Ubuntu 18, to log in to Cinnamon). We use LDAP (well, Active Directory) for authentication; when i am in the office, my password is checked against the ...
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1answer
141 views

overriding lightdm.service from ansible

I am having an issue with my GUI. I have setup a provisioned vpn via ansible that needs to be up before the graphical interface is up (lightdm on ubuntu lts 16.04). So I read you shouldn't edit the ...