The greeter (login screen) application for Unity. It is implemented as a LightDM greeter.

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126
votes
37answers
365k 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 ...
47
votes
14answers
40k views

How do I change the wallpaper of the login screen?

I would like to set the wallpaper in the login screen (Unity Greeter), how do I do that?
26
votes
3answers
5k views

Can I run Steam as its own standalone session?

I would like to run Steam in a standalone mode so I don't have to load a desktop and then run Steam. I just want 100% of my resources dedicated to the game. Ideally it would just be a Steam session ...
18
votes
2answers
3k views

Is there a way to shut off showing the user's wallpaper in Lightdm?

I don't want to expose my wallpaper to other people who share my computer, is there a way I can disable this feature or work around it?
11
votes
2answers
6k views

How can I invoke a user switch from the command line?

In 11.10 I used 'gdmflexiserver -xnest' to switch users without logging out however I think gdm has now been completely removed. I'm trying to bind a keyboard shortcut to do the equivalent of 'Me ...
9
votes
2answers
2k views

How do I remove the shutdown button only on the login screen?

I don't want anyone to be able to shut down my computer from the login screen. Can I remove the shutdown button at the top right corner of the login screen in Ubuntu 12.04?
8
votes
1answer
2k views

How to change circular icon to indicate chosen session in unity-greeter?

In Precise (12.04), when I login to lightdm, using the unity-greeter, there's a white circle by my name. For the standard DEs like Unity or XFCE, the circle has a representative icon (Ubuntu symbol ...
8
votes
3answers
3k views

How to change the font in LightDM

I want to change the font in LightDM (Ubuntu 12.04 default login screen) but the unity-greeter.conf file is in blank. Thank you.
7
votes
1answer
10k views

How to use the new feature of remote login in ubuntu 12.10?

Recently i have upgraded ubuntu 12.04 to 12.10. I saw a new feature of remote login under the login page. How can i use that remote login? I have got the Ubuntu live account. Searched on internet but ...
6
votes
5answers
2k views

rotated monitor. login screen needs rotation

I rotated my screen, an once I login, it works fine. but, the greeter (login) screen hasn't got the message that things are rotated 90 degrees. How can i change the rotation of the login screen? ...
6
votes
2answers
2k views

Switching desktop environment from Unity?

Basicall I have installed a few desktop environments. And if you are familiar with Unity, you know that the way switching works, is you get this sort of drop-down with all the environments installed, ...
5
votes
5answers
15k views

How do I set the LightDM wallpaper in Ubuntu 14.04?

In previous versions of Ubuntu, picking one of the default wallpapers meant that you saw it on the login screen as well. I am now on a clean install of Ubuntu 14.04, the LightDM wallpaper appears to ...
5
votes
1answer
4k views

How Do I configure LightDM to run seamlessly?

My Unity Greeter/LightDM is working fine in Precise with one exception. When the greeter first displays the default system wallpaper /usr/share/backgrounds/warty-final-ubuntu.png is visible for 1 ...
5
votes
0answers
348 views

When will the Unity Greeter begin to look like the propositions from the Design Team? [closed]

The Canonical Design Team gave a rather beautiful login screen mockup for the unity greeter. These designs, in my opinion far exceed the current UI that we have for Quantal (which I think is worse, ...
5
votes
2answers
2k 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 ...
4
votes
4answers
2k views

12.04 desktop login loop

I installed 12.04 from CD in a partition where 8.?? had been working. The installation appeared fine but Ubuntu booted to a black screen. After updating packages and fighting with nvidia drivers for a ...
3
votes
1answer
229 views

lightdm: cannot type password on login screen

I am running 12.04 LTS, fully updated. My system is configured to automatically log me in into my account. Auto-login works fine. However, sometimes I need to access the unity-greeter/lightdm login ...
3
votes
2answers
1k views

How to restrict an user to a specific desktop environment

I'm running a more or less standard installation of Ubuntu Precise 12.04 and I am quite satisfied with doing everydays task with Unity desktop environment. When it comes to playing, however, I feel ...
3
votes
4answers
963 views

Restore Unity Greeter

I've installed XFCE to test this desktop environment, but when I decide to switch back to Unity, uninstalling the XFCE packages, the LightDM keeps equal like XFCE, and I want to restore the Unity one. ...
3
votes
0answers
116 views

Unity Greeter looking weird

Yesterday I looked my notebook to clean the keyboard. Needless to say I pressed quite some random buttons. The result was like this: (except for the blue bar). The display's like it's selected and ...
3
votes
1answer
499 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 ...
2
votes
2answers
6k views

Unity greeter does not display custom wallpaper

I am using Ubuntu 14.04 LTS 64 bit . I know this question has popped up many times but I want to make it very clear that none of the posts helped me a bit. my Problem: I am unable to get my custom ...
2
votes
4answers
16k views

/etc/lightdm/unity-greeter.conf file missing

I have no /etc/lightdm/unity-greeter.conf file. but there is /etc/lightdm/lightdm.conf and /etc/lightdm/users.conf but there isn't a background=path/to/image line in either of those files. Related: ...
2
votes
2answers
116 views

Where is Ubuntu's drum roll sound located?

Where is Ubuntu's logon sound (Triple Drum Roll) located? It plays right when you see the Unity Greeter? When I searched up for the startup/login sound, which is what I thought it was, I got results ...
2
votes
2answers
2k views

why am i not getting my ubuntu 12.10 login screen back after uninstalling xubuntu 12.10?

I installed xubuntu, then uninstalled it completely, but I am not getting my original log-in screen back. It's a simple log-in screen with the computer's icon, user name, password and session details ...
2
votes
0answers
58 views

Why is Lubuntu default desktop environment

So I just wanted to try things out on 14.04, so I did sudo apt-get install lxde sudo apt-get install lubuntu-desktop When I get to the greeter, it reads Lubuntu (Default) Lubuntu Netbook LXDE ...
2
votes
1answer
337 views

Only a purple background displayed during the login screen. No wallpaper

I get only a purple screen for the background during login. Not even the default warty background. Its been like that since I installed Ubuntu. Ever since I came to know about the background of the ...
2
votes
1answer
6k views

Xubuntu 12.04: Use unity-greeter and set user background automatically

on a fresh Xubuntu 12.04 Installation i have set greeter-session=unity-greeter in /etc/lightdm/lightdm.conf. Also I have installed unity-greeter gnome-settings-daemon. Now I want to change the ...
2
votes
0answers
21 views

How to change the badges for the xsessions in LightDM? [duplicate]

Possible Duplicate: Change circular icon to indicate chosen session in unity-greeter (lightdm) In LightDM, the sessions now display a "badge" with a logo for the xsessions, but badges ...
1
vote
2answers
1k views

Why I get “No Vala Compiler Found” while compiling?

I tried to install Unity Greeter (unity-greeter_0.2.8.orig.tar.gz) to my Ubuntu 12.04 system from source. But after enter ./configure in terminal, following error appeared:
1
vote
2answers
2k views

How to change the default Desktop environment (That appears in the greeter) in 14.04

Previously I navigated to /etc/lightdm/lightdm.conf and changed user-session=ubuntu. lightdm.conf doesn't exist in Ubuntu 14.04 at that location, so how do I change user-session=ubuntu to something ...
1
vote
4answers
2k views

Unity-greeter black screen on 13.10

I've recently installed ubuntu 13.10 64bit on a desktop (UEFI mode). After the plymouth splash i get a black screen. After some experiments I found a temporary solution: switch back to tty1 and ...
1
vote
2answers
2k views

How to change font size of the login screen?

I had installed Ubuntu 12.04 on my netbook with maximum resolution of 1024x600, I upgraded to ubuntu 12.10. occasionally I use other GUI because it is more comfortable to me for certain tasks. since I ...
1
vote
1answer
542 views

Edit the Unity-Greeter theme

I am trying to get rid of some of the indicator icons on the Lightdm login screen (or maybe just get rid of everything). No luck so far. The file I am editing is @ ...
1
vote
1answer
950 views

Ubuntu 12.04 is stuck in lightdm login (Unity Greeter)

The login and Unity Greeter is working. However, if I try to log-in - in a matter of seconds, it would return to the login screen. This happened when I tried to install a package and I restarted my ...
1
vote
1answer
288 views

Unity Greeter login screen cuts off login options

I have a pretty newly installed Ubuntu 12.04, using Unity. My external monitor is 1920x1080 max resolution. In the Unity desktop itself everything looks great. I have an NVidia graphics card. When I ...
1
vote
1answer
422 views

How do I log in with a user that is not included on the list in Ubuntu 12.04? [duplicate]

I am using Ubuntu 12.04 64 bit. I have created a system user so as to keep it out of the login screen with sudo adduser --group --system markpaskal, but I cannot login from the greeter because there ...
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
0answers
74 views

Suspend causes login screen corruption or system freeze

At work, I often set my computer to "Suspend" rather than turning it off at the end of the day. Often when I turn it back on in the morning, I find my login screen to look like this: Note that, ...
1
vote
0answers
116 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 ...
1
vote
0answers
548 views

Ubuntu 14.04 start error

After a few days in a fresh XPSP3/Ubuntu 14.04 dual boot intallation I started to get this error: Executable Path /USR/SBIN/UNITY-GREETER . This happens every time I start ubuntu and sending a error ...
1
vote
0answers
58 views

How do I change the appearance of the Unity greeter? [duplicate]

Is there any way to change the appearance of the Lock Screen on Ubuntu 13.10 (unity)? At current its simply a black screen with a tiny clock on the upper right corner. I would like to change this to ...
1
vote
0answers
146 views

lightdm login screen disable mirroring

By default, on a dual monitor setup lightdm seems to mirror the monitors on login. Is it possible to configure the lightdm so that it enables both monitors but only shows the login screen on one of ...
1
vote
0answers
1k views

Ubuntu 12.04 login screen: go directly to user background, not via default

I know I'm being rather picky here, but is there a way to configure lightdm so that when the login screen shows after boot it directly shows the selected user's background, instead of first loading ...
1
vote
2answers
816 views

12.04 login loop

As the title says, I have problem with login. When I enter correctly password and confirm, black screen with log appears for like 0,5 seconds and then it goes back to login screen. Unlike the others, ...
1
vote
0answers
725 views

How to fix Unity greeter login/splash screen? [closed]

I've upgraded Ubuntu 11.10 to 12.04 and after upgrade I see a broken LightDM login screen (strange dots around the screen). When changing login name, the screen's back to normal. How to fix that ...
1
vote
2answers
4k views

How do I change the purple dotted background in unity-greeter before the default background image?

How do I change the default purple dotted background that appears right before the background image in unity greeter in 12.04 precise? To be clear, this is in the brief moment right before the ...
1
vote
0answers
63 views

How to take a screenshot of login screen? [duplicate]

Possible Duplicate: How can I take a screenshot of the login screen? I want to make a screenshot of my Login Screen on Ubuntu 11.10. So far, no method I read here has worked out for me. So ...
0
votes
1answer
203 views

Can't compile unity-greeter-13.04.1 on Ubuntu 12.04

I downloaded the unity-greeter-13.04.1 from https://launchpad.net/unity-greeter. Now I want to compile it to able to install it on my Ubuntu 12.04. But I face below problems while compiling: ...
0
votes
1answer
75 views

How to go back to default ubuntu greeter?

I setup my PC from a Xubuntu iso file. After a while, I decided to install the ubuntu-desktop package to switch to Ubuntu. When I turn on my PC, the greeter I get is the same that came with Xubuntu. ...