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

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4
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154 views

Prevent light-locker from setting volume to 100%

I'm on 14.04 with XFCE. When I lock the screen it appears to mute the system volume (or perhaps just mute anything from the locked session?). When I log back in the volume is reset to 100%. This ...
3
votes
0answers
54 views

No login screen on startup, works after logging in and logging out again

I installed Ubuntu on a client's computer. At first - no issue, but after some updates and installs (including burg, which was not the problem as the problem remained after removing it, I could not ...
3
votes
0answers
47 views

Unknown xubuntu screen locker / password

I have a regular ubuntu installation which I then installed xubuntu desktop over. I am occasionally confounded though by an unknown "screen locker" that occasionally appears instead of my normal ...
3
votes
0answers
753 views

Ubuntu 15.04 boot hangs on “Starting light display manager” after updates

I have recently taken the plunge to Ubuntu, and purchased the Dell XPS 13 Developer Edition. My first order of business was to wipe the "Dellbuntu" that came pre-installed and do a fresh install of ...
3
votes
0answers
128 views

How can I start a LightDM session via SSH?

I'm connected to an Ubuntu 14.04 machine via SSH and I want to start the lightdm session for testing purposes. I don't want to forward the X server to my local machine. I just want to start the ...
3
votes
0answers
154 views

Lock screen asks for password on no-password account

The Ubuntu lock screen always asks for a password even when the account does not have password. In my opinion, it should be exactly like the login screen: a button "connect >" for accounts that don't ...
3
votes
0answers
243 views

After Upgrade from 13.04 to 13.10 missing user in login screen

I have upgraded to 13.10 from 13.04 now after booting (even after updates and rebooting) my user id is not listed. It has a uid higher than the minimum in lightdm.conf. I have the user light display ...
3
votes
0answers
383 views

Xubuntu: How can I avoid the double-password entry (lightdm then xscreensaver) on user switching?

I'm running Xubuntu raring with lightdm and xscreensaver. Both users on the system have xscreensaver set to lock the screen after n minutes. However, when I click "switch user" (or do gdmflexiserver ...
3
votes
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470 views

Lightdm not working at all since bumblebee install!

I'm relatively new to Ubuntu, so please excuse me if my question is stupid... So a few weeks ago, I bought a Gigabyte U2442N with Optimus Graphics (a 640M and a HD4000). I installed the stable ...
3
votes
0answers
427 views

How to get 12.04's login screen (lightdm) to display the shutdown menu like 10.04 when the computer's physical power button is pressed?

In Ubuntu 10.04 while at the login screen (gdm), when the computer's physical power button was pressed a screen popped up that offered options on shutting down the system (shutdown, restart, cancel, ...
2
votes
0answers
32 views

How can I start lightdm / server X?

I installed yesterday new drivers from NVIDIA in my Ubuntu 14.04. I had to stop server X so I used the "famous" sudo service lightdm stop Today I updated my system and it seems like lightdm is off. ...
2
votes
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23 views

Ubuntu 12.04 graphical interface is gone

I was trying to set up my build environment for beagleboneblack.I was following standard instructions from this site https://source.android.com/source/initializing.html I was installing ...
2
votes
0answers
14 views

Smart lock like on Android?

Is it possible to configure either LightDM or GDM to automatically log in when my laptop is connected to a certain WiFi? Or even better, to check my location regardless of what WiFi I use?
2
votes
0answers
51 views

Unable to login from User account or Guest account (not a duplicate question)

I have Dell 3521 laptop without dedicated video card. It came with Ubuntu 12.04 installed. One fine day, it prompted me for an upgrade, which i went for. During upgrade, its battery finished and once ...
2
votes
0answers
170 views

switch user leads to black screen

I'm on the latest 14.04 with nvidia-331 drivers installed. Everything runs smoothly just when I try to switch user I get a black screen. Suspend and logout works with no problems. Somehow I managed ...
2
votes
0answers
61 views

How does LightDM treat PAM?

I use XFCE as my desktop, and I wanna know how LightDM works with PAM. when I use normal kernel arguments, LightDM starts and then XFCE is started by LightDM. When I add "text" to kernel parameter, ...
2
votes
0answers
552 views

/etc/X11/Xsession & LightDM

I'm running Lubuntu 14.10. It seems that LighDM invokes /etc/X11/Xsession only if directed to so by the user. In fact there is no shadow of it in lightdm-session wrapper. startx command line ...
2
votes
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147 views

lightdm: lock session after (only) auto-login

I'd like to be able to have my KDE session started with lightdm auto login but lock immediately. But if I logout and then back in, I don't want the lock. I found this bug: ...
2
votes
0answers
357 views

Ubuntu 14.04 Pantheon session not shown in LightDM

I installed elementary-desktop on my Ubuntu 14.04 x64 virtual machine following these steps, but I don't get the Pantheon session in LightDM. I only have KDE Plasma Workspace and Ubuntu(Default). Is ...
2
votes
0answers
124 views

How can I add a custom python indicator to the unity-greeter login screen?

I've installed a custom indicator called PRIME Indicator and it shows up in the top panel (next to date time etc) after I login. I would like to show the indicator before login on the unity-greeter ...
2
votes
0answers
181 views

Changes in /etc/lightdm.conf.d/*conf or /etc/lightdm.conf makes any difference

I am trying to make my lightdm use a correct setup of my displays both for login and session. I have most likely misunderstood something here, but by reading the wiki I did the following: I have ...
2
votes
0answers
52 views

When I turn my monitor on after it has been off, it does not display anything

I am running Xubuntu 14.10 on a desktop and use LightDM. As I said in the title after I turn off my monitor (with the computer already on) and then turn it back on again there is no input from my ...
2
votes
0answers
51 views

Can this error cause computer to reboot

There are 11 computers in my classroom. Yesterday they began to reboot randomly, all of them. I reinstalled Ubuntu and got this error everytime. Also, after reinstalling the rebooting continued. Can ...
2
votes
0answers
77 views

Lightdm greeters?Where can I find some?

Is there a place where I could find a list of lightdm greeters and where I could download them? I would very much like to see some custom made greeters so I can fully customise my Ubuntu :) I know ...
2
votes
0answers
116 views

Black screen on bootup

I've had a problem since loading ubuntu alongside my windows install now. I'm running 14.04 and using Gnome 3.12 shell and Lightdm. When booting up the Ubuntu splash screen looks normal and pushes me ...
2
votes
0answers
146 views

Xmonad keyboard not working (Macbook pro)

I've installed Ubuntu 14.04 on my Macbook Pro retina (11,1) and it all worked swimmingly. Then I tried installing Xmonad, selected it once from my lightdm manager and now it loads by default. (The ...
2
votes
0answers
3k views

Unable to reinstall unity-2d on Ubuntu 14.04 desktop LTS?

It is wiered that I'm not able to reinstall unity-2d on my system. I removed it as it was not ready to go into the 2D mode. I have XRDP install for which I need Unity-2D. after removing the unity-2d ...
2
votes
0answers
226 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 ...
2
votes
0answers
100 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
votes
0answers
484 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 ...
2
votes
0answers
114 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 ...
2
votes
0answers
197 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
1k 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 ...
2
votes
0answers
443 views

Logging out from Ubuntu takes too long

When I first had only Unity as a desktop manager, I didn't need to log out so I'm not sure if this issue has been around before. I'm say so because It's important to know that I currently have Xfce ...
2
votes
0answers
41 views

Add entry to login user menu to directly execute command

I want to add an entry to my login menu to execute and run a program with whatever parameter I specify. I'm vaguely aware it is possible, but not quite sure how. As a side note, I want to ...
2
votes
0answers
821 views

Ubuntu Opens in Black Screen Using Lightdm But Working When Using GDM

Last time I installed lm-sensor (a package to know CPU Temperature) and restarted my system. $ sudo apt-get install lm-sensors $ sudo sensors-detect $ sudo service module-init-tools ...
2
votes
0answers
962 views

cannot click in some windows, ubuntu 13.04 64bit

EDIT: I tryed both, lightdm and gdm. ''sudo restart lightdm'' helps temporarly. I cannot click in firefox until I start something else e.g. shell. But than the mouse cannot click anything outside ...
2
votes
0answers
253 views

Getting a blue wallpaper screen with no desktop bars

I just got a linus VPS after like 6-7 months. I installed a clean copy of 11.10, and then used this tutorial to install ubuntu-desktop and get a VNC connection going: ...
2
votes
0answers
209 views

lightdm - enable 3 and then 4 monitors

I've just completed a Ubuntu 12.10 server build on a HP XW8400 desktop with 2 x GeForce dual head DVI gphx cards. On the build bench I had 1 monitor connected & worked perfectly. 1920x1200 ...
2
votes
0answers
328 views

How do I speed up initial login?

The initial login on my Ubuntu 12.04 machine can take anywhere from 45 seconds to two minutes. If I log out, then log back in again, the login time takes between 4 and 7 seconds. How can I find out ...
2
votes
0answers
673 views

Is there a way to use LightDM and Unity but get a lock screen like GDM in 12.10?

I like the GDM locked screen theme a lot! But even if i set GDM as the Display Manager but log in to Unity session,the lock screen remains that oh LightDM... I want to use LightDM as my login Display ...
2
votes
0answers
346 views

lxdm won't login to Ubuntu 2d or Gnome classic

I installed Ubuntu 11.10 on an old Dell Centrino/512mb machine that was running too slow with Windows to be useful. I am completely new to Linux and muddling my way through as well as I can. The ...
2
votes
0answers
561 views

Problems with both LightDM and GDM using DisplayLink USB monitor

When I use LightDM, it will auto-login to desktop just fine. The only problem is Compiz doesn't work, and menus don't work. I can't right-click the desktop, and I can't select program menus in the top ...
2
votes
0answers
80 views

LightDM and introductory screen

How can I set original introductory screen and LightDM, they changed after installing the system administrator KDE.
2
votes
0answers
340 views

How do I configure LightDM so user could choose session type only

I need to configure LightDM, so user could only choose session type which will then start automatically without password. And when he had choosen 'kiosk' session, it should start as quest. When he had ...
2
votes
0answers
427 views

Sluggish switching of desktop environments in Ubuntu 12.04

Whenever I switch from Unity to Gnome Shell or Classic Gnome, it sometimes takes what seems to be an awful long time to get to the new desktop. If I remember correctly, one time it took over 2 mins. ...
2
votes
0answers
1k views

Login screen restarts while entering password

I am having a problem that only occurred after installing the fglrx proprietary driver through the additional drivers app. The exact same issue is described in this question, however it's closed. ...
2
votes
0answers
398 views

What does “error reading login count from pmvarrun” mean?

I have the above mentioned error in my /var/log/auth.log file and just try to figure out if this is a harmelss statement. As far as I understand does pmvarrun tells the system how many active ...
1
vote
0answers
11 views

Unity greeter wallpaper change every minute

I have script that changes Unity Greeter wallpaper location every minut, but problem is that it doesn't show new wallpaper unless i login in to any user account and switch back to Login screen ...
1
vote
0answers
24 views

Xubuntu. Suddenly black

This is what my desktop looks like now. It's completely useless, will not do anything. Nothing to right click won't even minimize a program when it's clicked on. I've had this problem before and ...