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

learn more… | top users | synonyms

2
votes
1answer
373 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 ...
2
votes
1answer
578 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 ...
10
votes
3answers
5k views

How do I change the font on the login screen?

I want to change the font in the login screen - where is the configuration for that?
1
vote
1answer
199 views

System resets to login screen spontaneously

Now I'm experiencing spontaneous resets of the desktop environment (when logged in and working normally), where the screen will go black, then reset to the login screen. The resets appear to be ...
0
votes
1answer
806 views

Ubuntu 12.04 login hangs on “Checking Battery” or “SANED,” then returns to login screen

Working earlier tonight, my mouse froze in the middle of the screen, and so I restarted my system. Upon trying to log back in, the screen flashes black, and something along the lines of saned: edit ...
-1
votes
0answers
61 views

How to disable autologin if the desktop is not functioning? [duplicate]

Possible Duplicate: How to disable automatic login? I have tried to login to a desktop that is not fully functioning. I want to get back to Ubuntu - I can do this if I could boot to the ...
7
votes
3answers
6k views

How can I require users to also enter their usernames upon login?

Good day, Does anyone know how to modify the login screen so that users are required to type their username along with their password? I'm running Ubuntu 12.04 with all default settings
2
votes
0answers
39 views

How to swap the language before login as per the old GDM login screen? [duplicate]

Possible Duplicate: How do I set the login manager to enable change languages at login? I used to run Ubuntu 10.04 on an computer. When upgarde to 12.04 I have got a totally new login ...
5
votes
1answer
4k views

Lightdm dumps to tty. Cannot start GUI interface when booting off harddrive, but can when booting off usb

When booting, lightdm dumps to tty. No GUI interface works- this is after a fresh install of Ubuntu 12.04 where the GUI interface works when running off the USB. I have an NVIDIA Corporation G98 ...
2
votes
0answers
361 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 ...
1
vote
2answers
5k views

No unity-greeter.conf file in /etc/lightdm/

I am running Ubuntu 12.04 with gnome-shell. I have two admin user accounts. Now, I used to know that in Precise we can set different different login wallpaper to different different user, so I tried ...
1
vote
1answer
455 views

User accounts missing on loginscreen after 11.10->12.04 upgrade, how to get them back?

I upgraded to 12.04 from 11.10. I thought that by upgrading I wouldn't lose the accounts (and the release notes make no reference to loosing it), yes, I carelessly hit the upgrade button but please ...
3
votes
1answer
1k views

Working around Active Directory Users

In my office system, Ubuntu is configured for Active Directory authentication with Windows using likewise open. I have three issues. Each time when I switch on my system and some times when I ...
20
votes
3answers
53k views

How do I switch from LightDM to GDM?

How do I switch from the default display manager (Lightdm) to the older display manager (GDM)?
4
votes
1answer
765 views

Run a script with user interaction on log out / shutdown?

I'd like to run a script on shut down, which interrupts the logout process and and pops up a window with zenity. My target is to get autofsck working with lightdm. It seems to work with 12.04 after ...
1
vote
0answers
671 views

Console mode oddities

Ubuntu 12.04 can be started in console mode (without GUI) by adding the file /etc/init/lightdm.override with the content manual: echo manual | sudo tee -a /etc/init/lightdm.override When I start ...
4
votes
1answer
1k views

How to show avatar and username (not only full name) on the login screen?

I used ubuntu tweak to change the login background, but I need these other things as well: Show username (not only full name) and avatar if possible, in the login screen Any ideas how to achieve ...
1
vote
1answer
880 views

Why don't I have ubuntu tweak setting to mute/enable ubuntu login sound?

Ever since I installed Ubuntu 12.04, I couldn't figure out a way to enable the login sound. I already have ubuntu tweak installed and I have been at this question, but on my ubuntu, there is not any ...
18
votes
1answer
35k views

How do I make GDM the default display manager?

I believe my question says what I am trying to achieve. Steps I tried to make gdm my default display manager: sudo dpkg-reconfigure than select gdm as my default. Edit ...
6
votes
1answer
20k views

How can I restart Unity/GDM when I get a blank screen after suspend?

Occasionally, with Ubuntu 12.04, I get a blank screen when I resume from suspend. I can see the mouse cursor, but that's all. I can get TTY terminals, so is there a way to restart the graphical ...
5
votes
3answers
3k views

setting up multiseat on 12.04

I'm using a single nvidia Quadro FX 3700 card on my system. This thread: How to set up a multiseat system? suggests that changes should be made to the lightdm.conf and xorg.conf files. When I made ...
51
votes
1answer
15k views

What happens under the covers to log me in and start up Unity or another Graphical User Interface?

When there's trouble, it might be good to understand what happens under the covers to sign a user into a GUI session and get a Unity (or other window manager) to bring up a desktop.
0
votes
1answer
252 views

loading splash screen takes priority over terminal or windows manager while running elsa

I recently installed e17 and was trying to set up defaults to use elsa and ecomorph over the standard compiz as it constantly crashes since updating to 12.04. If elsa is installed the loading screen ...
1
vote
0answers
40 views

Remove Lubuntu entries from login screen [duplicate]

Possible Duplicate: How to remove session entries from LightDM? After I uninstalled the Lubuntu Desktop package (lubuntu-desktop), the lubuntu entries on the login screen are still present. ...
4
votes
3answers
11k views

Laptop screen blank after login when external monitor is not connected

Ubuntu does not switch back automatically to only monitor present when booting after disconnecting external monitor. Here's a video showing what happens. I get to the login window and everything ...
0
votes
0answers
44 views

How can I make lock screen be like the login screen? [duplicate]

Possible Duplicate: How to make the lock screen look like the login screen? Is it possible to have the login screen displayed when locked instead of that ugly and horrible current lock ...
1
vote
1answer
2k views

Default login screen gone, how to revert?

i just installed 12.04 and was playing around, i dont remember what i did, now after one logout beautiful default login screen has changed into gray area, help needed
2
votes
1answer
2k views

User Accounts not listed in System Settings User Accounts

I'm running 12.04 on PPC (IMAC G5) - but have a problem with creating/editing user accounts with the System Preferences User Accounts tool. All updates have been downloaded and installed. When I ...
11
votes
2answers
15k views

How do I install KDE and retain LightDM as a login manager?

I want to install KDE in my Ubuntu 12.04 . I am using LightDM. So how can I fully install KDE? I do not want to remove LightDM. I want KDE but without any confliction with it.
7
votes
2answers
7k views

Programmaticaly change lightdm autologin session type

I have problem with lightdm setting autologin session type (using my config tool). Lightdm logs into previously selected session. I see that autologin-session is UNIMPLEMENTED in version 1.2.1. Maybe ...
3
votes
1answer
593 views

Lost gtk theme style in login screen after Compiz crashed

Normally, all controls in login screen (button, textbox, etc..) have the current gtk-theme style. But after Compiz crashed (always happen when I enable or disable a plugin), the style has gone (no ...
5
votes
2answers
3k views

Unity greeter background on Xubuntu 12.04

I'm running Xubuntu 12.04 and using the Unity greeter with LightDM. Everything works well except for I can never change the background. I've tried editing the .conf file, editing the gsettings as the ...
1
vote
1answer
3k views

Login crash loop

After about the second/third batch of updates on a fresh install of Ubuntu 12.04, I end up getting stuck in an infinite login loop: I enter my password, screen goes black and shows me the end of the ...
2
votes
2answers
961 views

Is it possible to run ChromiumOS as a session?

Is it possible to install ChromiumOS within Ubuntu? I am NOT looking for dual boot. I want to use as a session like unity or gnome-shell. Please let me know if anyone has tried it.
8
votes
2answers
18k views

How can I replace LightDM with MDM?

Linux Mint Cinnamon 1.4 released with "MDM display manager". It is based on the code of GDM2.20. It provides: Graphical configuration tools Themeability Remote, automatic and timed login Event ...
0
votes
2answers
1k views

How to restore lightdm guest's wallpaper?

Recently I played a bit on changing lightdm wallpaper... Actually LightDM shows the user wallpaper but not the default guest wallpaper (instead it shows a uniform purple background for guest account). ...
8
votes
2answers
11k views

Why doesn't right-click work on my desktop?

I installed elementary OS and e17 on my Ubuntu 12.04 from ppas. After logout and login, right click on desktop is not working in gnome and unity but working in file manger.When I login into Pantheon ...
0
votes
3answers
562 views

Wallpapers of only some users being dynamically loaded in LightDM

As this answer explains: Ubuntu 12.04 Unity greeter has introduced selected user dynamic background, that means that when selecting a user from the available users list the background will change ...
185
votes
40answers
541k views

How to fix “The system is running in low-graphics mode” error?

Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong ...
6
votes
1answer
27k views

How to enable the “Other User” login in ubuntu 12.04 if the userid I want to use isn't listed on the login screen?

How can I enable the "Other User" option for the login manager in ubuntu 12.04? This was available in older versions of Ubuntu for use in logging in with a user-id other than those listed on the login ...
6
votes
3answers
9k views

Unity greeter background not changing for users automatically after upgrade

I have recently upgraded from 11.10 to 12.04. Normal upgrade, no new installation. In 11.10 I was using Simple LightDM Manager tool to set a custom wallpaper on the login screen. This tool ...
2
votes
1answer
818 views

Login Manager does not have a selection for other user

I have a problem with the login manager of ubuntu 12.04, it does not have a selection to login another user; instead it only allows administrator and guest. Can you help me with this problem?
9
votes
3answers
13k views

Is there a list of all the possible configuration options for lightdm?

Every time I want to customise lightdm I find it frustrating that there is no obvious list of configuration options I could use in /etc/lightdm/lightdm.conf. Perhaps someone here knows where there is ...
2
votes
0answers
428 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. ...
3
votes
3answers
7k views

How do I switch users?

How does one switch users in Unity? (i.e., in the GUI, not sudo.) I really want to launch another X session using a different WM, without abandoning the current one.
0
votes
5answers
5k views

Login screen ubuntu 12.04 not showing user's desktop

I installed Ubuntu 12.04 (x64) and was really enjoying it, but it was a little too slow on my machine, so I've reinstalled with the x32 version (hopefully that terminology's correct). The only thing I ...
1
vote
1answer
817 views

How can I get LightDM to work on Ubuntu 12.04 LTS 64-bit?

Is there a permanent fix for the looping login problem in LightDM? I recently installed Ubuntu 12.04 64-bit. LightDM won't work even though I haven't changed any options (background, etc.). It just ...
9
votes
1answer
33k views

How to change from GDM to LightDM?

I've upgraded to 12.04. My upgrade didn't go as expected; X crashed at the middle of the upgrade. I had to install many packages manually. This left me with a GDM login screen. How do I change from ...
2
votes
2answers
6k views

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 ...
3
votes
3answers
6k views

enabling a user (created with adduser command) for lightdm graphical login

I just installed Ubuntu 12.04 AMD64 on a new (empty) hard disk (because the previous crashed) Since I am quite familiar with Debian, I created two accounts with the adduser command. Since I am also ...