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

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109
votes
36answers
277k 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 ...
24
votes
3answers
3k 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 ...
17
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?
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
2answers
5k 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 ...
8
votes
3answers
2k 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
9k 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
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 ...
6
votes
2answers
1k 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
3answers
213 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? ...
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
336 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
3answers
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
770 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
1answer
429 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
4answers
15k 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
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
89 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 ...
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
19 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
585 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
4answers
761 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
1k 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
212 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
738 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
256 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
374 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
4k 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
56 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
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
0answers
72 views

Authentication Failure after Update - New Kernel bug?

I logged in normally this morning. Then they was a software update with a new linux kernel. After install of the updates, I restarted, and now when I reach to the login screen, before I even type ...
1
vote
0answers
257 views

How to use LightDM Greeter Menu Bar as Standard Menu Bar within a User Session

I'm running Ubuntu 12.04 LTS on my Acer Chromebook. I have a greeter installed by default. This thing looks sweet. Transparency on the menu bar. Nice visual effects. My question is: Can I use the ...
1
vote
0answers
125 views

Cannot usermod -L in LightDM scripts

I'm running Xubuntu 12.04 and use the LightDM. I want to restrict access to the machine as a kind of parental control. This is how it should work I hook in a script that executes just before the ...
1
vote
0answers
565 views

Multiple monitor resolution LightDM

I use different displays connected to my HDMI ports and the laptop display. In order to resolve LightDM login resolution bug I've developed a script beginning from what written in How to force ...
1
vote
0answers
231 views

Multiseat problems after 11.10 -> 12.04 upgrade

I have a multiseat configuration with 2 Nvidia cards. Everything was working under 11.10 but since the upgrade I'm having trouble with ligtdm/unity-greeter. Either lightdm or the unity-greeter now ...
1
vote
2answers
710 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
651 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
62 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
157 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
365 views

How do I get unity-greeter to run?

I want to be able to access alternatives to Unity as it really slows things down with only 2GB of memory. I thought that if I could get unity-greeter to run that I'd have a choice.
0
votes
1answer
391 views

How can i recover “Ubuntu” or “Ubuntu 2D” sessions?

I'm using Ubuntu 12.04 lts. When I upgrade from 11.04 i've got some Errors with nautilus. Yesterday I uninstall nautilus and reinstall it. I made the last system update (with a unity-greeter update). ...
0
votes
1answer
518 views

Unity greeter login screen has a garbled white dot grid?

I am running 12.04 on three machines. On one of the machines I am running an Intel 82G33/G31 Express Integrated Graphics Controller as a display adapter. On this particular machine the grid of white ...
0
votes
2answers
2k views

How To Change Login Screen Background On 11.10 [duplicate]

Possible Duplicate: How do I change the wallpaper in LightDM? How do i change the background of the login screen on 11.10 i have tried Simple-lightDM-Manager and now all i get is a black ...
0
votes
1answer
49 views

ubuntu 13.10 - not prompted for login at start up

Mostly - oddly not every time - when I reboot, or start up my laptop, I am not prompted for a password; it goes straight into my desktop. I don't like this one bit. There are other users on my laptop, ...
0
votes
1answer
1k views

lightdm/unity-greeter wallpaper will not set

I am trying to set the wallpaper on my login screen, but i cant seem to get anything to stick. I have used gsettings set com.canonical.unity-greeter background '/path/to/pic.jpg' as user 'lightdm'. ...
0
votes
1answer
255 views

How to get rid of light desktop manager entry in Ubuntu greeter [duplicate]

I've got a "light desktop manager" entry in Ubuntu greeter for some strange reason, and I can't get rid of it. As the current OS is Ubuntu 13.10 the way to configure the lightdm greeter is rather ...
0
votes
1answer
1k views

xubuntu lightdm unity-greeter bad looking theme

I'm using xubuntu 12.10 and wanted to use the unity-greeter for the login screen (lightdm). The thing is that I installed the package unity-greeter (and gnome-settings-daemon), changed to ...
0
votes
0answers
44 views

Installing unity-greeter on 13.10

While installing unity-greeter-14.04.6 from Launchpad.. when run ./configure it shows some error and does not produce makefile configure: error: Package requirements ( gtk+-3.0 gdk-x11-3.0 ...