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

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+50

SLOW Boot and Login times Ubuntu 16.04

Ubuntu 16.04 64 bit taking around 20 sec from Login screen to desktop and around 20 seconds from grub to login screen, tell me which services i can safely disable, i do not use virtualbox and ...
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228 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 ...
4
votes
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374 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
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98 views

15.10 Unity stuck after login, even as guest, background image permission denied despite 644

Yesterday I ran the last Ubuntu security updates, and now my desktop does not open anymore. Only the purple login wallpaper is visible (my user wallpaper is different and does not appear) and I can ...
3
votes
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113 views

Multiseat on one video card

I'm trying to set up a multiseat configuration on a single video card (Nvidia GTX 680) under Kubuntu 14.04. I can run two x-screens for one user, what nvidia-settings natively supports. So I think ...
3
votes
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379 views

Changing default resolution system-wide in Ubuntu 15.10

Ubuntu 15.10 uses the native resolution of the screen by default. The native resolution on my laptop (3200*1800) is too big for the size of the screen (13"), leading to a very high pixel density, it ...
3
votes
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2k 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 (...
3
votes
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257 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 ...
3
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98 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 ...
3
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422 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 ...
3
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250 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
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422 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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526 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
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454 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
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10 views

login error in Ubuntu 16.04 with X authority problem

I've Installed Android Studio and wpscan metasploit and LAMP Stack server on my system. The next day when I've tried to login to my system I got that black loop page and backed to my login page. I'...
2
votes
0answers
91 views

Dual monitor setup: one screen works, the other is a blank backlit screen

I have a dual monitor setup, on Ubuntu 15.10, with LightDM. Both monitors connected by HDMI, one connected to my NVidia GPU, and the other connected to my integrated graphics card. I recently ran into ...
2
votes
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310 views

Must manually restart lightdm to have it appear

I recently did an Ubuntu command-line install on my work laptop, then install Mate (core) and lightdm. I have an Intel graphics driver. When I turn on my computer, it boots to a black screen. Pressing ...
2
votes
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31 views

Early adbd on ubuntu touch device

I need to run adbd at early boot stage (before lightdm has started) on Ubuntu touch device (Nexus 10). As far as i know, adbd is launched after login screen password is entered. In upstart scripts i ...
2
votes
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42 views

Cannot log in to GNOME with XMonad sessions

I'm running ubuntu 14.04.3LTS. I recently installed xmonad via apt. When I log in, I have three options: GNOME with Xmonad Ubuntu (Default) Xmonad Ubuntu works fine, as does Xmonad. However, when ...
2
votes
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97 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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37 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
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0answers
413 views

how to change ubuntu 15.04 lightdm greeter wallpaper size?

i was wondering if i can change the size of the background i have selected in lightdm.conf after installing lightdm-gtk-greeter sudo apt-get install lightdm-gtk-greeter then editing the ...
2
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138 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
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432 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
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237 views

Ubuntu 14.10 - Wrong greeter screen resolution

I'm currently running Ubuntu 14.10 set to a resolution of 1920 x 1080, but on start up of the system, the resolution is incorrectly set to 3840 x 2160 (with no scaling) at the greeter screen. On ...
2
votes
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107 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
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337 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: https://bugs.kde.org/...
2
votes
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558 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
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270 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
344 views

Remove LDAP users from Lightdm greeter user list

I have default user accounts which are local to my system and I want to show them in a user selection list. This is working. Recently, I've enabled logins with LDAP. The flow is selecting "Other..." ...
2
votes
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134 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
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187 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
241 views

unity-greeter login background won't change according to the user that is highlighted

I use Ubuntu 12.04. Recently, I change to use another Accounts Service which could remove certain users from the graphic login screen of unity-greeter. I downloaded source code from a branch of ...
2
votes
0answers
225 views

14.04_x64 / Nvidia GT 240 , HUGE font notificaton at greeter and in naulitus after log-in

I've been using 12.04 for a long time - excellent version indeed, I decided to try 14.04 today. Installing without any problems. My VGA is Nvidia GT240 (legacy one), Nouveau display driver is fine, ...
2
votes
0answers
127 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
650 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
121 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
206 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
2k 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
553 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 4....
2
votes
0answers
50 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
2k views

Invisible mouse

When I boot Ubuntu I can see the mouse cursor at the login screen but once I put my password is see this error could not acquire name on session bus I tried to Google the error but all I find is stuff ...
2
votes
0answers
916 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
1k 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
348 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: http://www.webhostingtalk.com/...
2
votes
0answers
212 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
397 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
752 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
370 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
611 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 ...