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

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1answer
4k views

Cannot log in into Ubuntu after an upgrade to 12.04 [closed]

Today I cannot log into the GUI, but I can use the console (Ctrl+Alt+F1) to log in as a user or as root, and I can login via ssh. Under Natty, before the upgrade, I had set up Ubuntu to auto-login as ...
3
votes
1answer
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How can I get a manually created user to show up on the log in screen?

I need to create a user manually (need a specific uid and default group), but I would also like to be able to log in via the standard 12.04 login (lightdm). I cannot figure out a way to do both of ...
3
votes
1answer
2k views

Low graphics mode error on startup with NVIDIA graphics (12.04 LTS )

My problem is similar to two other posts concerning ATI cards and 12.04 LTS: Post1 & Post2. In my case I use a Dell Precision M4300 laptop which uses a NVidia Quadro FX 880M. Doing a lspci | grep ...
1
vote
0answers
466 views

How do I change the default session for all users? [duplicate]

Possible Duplicate: How do I change the default session for when using auto-logins? I'm trying to change the default session manager for all existing users and new users, from Unity to ...
2
votes
1answer
3k views

Screen connected to the 'mini-displayport' doesn't work anymore on an Apple Monitor

I am running Ubuntu on a Mac Pro with a Apple monitor. The machine has a GeForce GT 120 (aka GeForce 9500GT). The DVI output is still working, but the screen connected to the 'mini-displayport' ...
3
votes
6answers
18k views

Unable to login as root from the login screen even though I have a root account

I have installed 12.04 LTS but surprisingly not able to login as root. I have unlock and set the password for root but while login i can not see 'other' option in GUI login where i can put root id and ...
4
votes
3answers
4k views

Cannot pass the login screen after upgrade to 12.04 from 11.10

I just performed the upgrade from Ubuntu 11.10 to Ubuntu 12.04 LTS. The updater downloaded all packages but a few ones that the system said were already installed. When asked for it, I chose to ...
2
votes
1answer
5k views

Updated to 12.04, Xorg won't start, using onboard XGI display

Just updated one of my servers to 12.04 (from 10.04), and Xorg no longer starts, nor will lightdm or gdm. Looking in /var/log/lightdm/x-0.log: X.Org X Server 1.11.3 Release Date: 2011-12-16 X ...
3
votes
2answers
10k views

Restarting LightDM after running nvidia-xconfig results in unresponsive text-only display

So, for awhile I've been trying to get my external display to work. I'm running a Nvidia Geforce 305M graphics card in a Lenovo IdeaPad U460s. But when I open Nvidia X settings (Ubuntu 11.10 btw) a ...
1
vote
2answers
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After Nvidia driver install, LightDM won't start automatically

I did a clean install and after installing updates and drivers (Nvidia VGA) for a 460GTX, I'm shown a black screen with various Stopping/Starting messages. The last of these messages is different ...
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votes
7answers
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How do I add customized wallpapers so they appear in the dynamic unity greeter?

As the title above suggests I want to add some custom wallpapers (png images I have created myself) to the user/share/backgrounds folder in 12.04. I have completed this task. Issue : They do NOT ...
1
vote
0answers
36 views

Loign Screen (LightDM) Background is black in Ubuntu 11.10 [duplicate]

Possible Duplicate: How To Change Login Screen Background On 11.10 Hi I have installed Ubuntu tweak in ubuntu 11.10. I changed the login screen (lightdm) background using it. But as I ...
2
votes
0answers
24 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 ...
2
votes
4answers
17k 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: ...
12
votes
1answer
3k 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 ...
1
vote
2answers
3k views

How can I change my login screen resolution when connected to my monitor (12.04)

I have my laptop connected to a monitor via VGA. When I start the computer up, the login screen shows on both the monitor and laptop screens, and is not the correct resolution. I would like it to show ...
11
votes
3answers
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How do I enable the “Other” user for login with Active Directory?

So I work at a university using active directory, and in my office there are a few computers that I've set up, in Ubuntu 11.10, to log as an AD user. In order to log in a person just needs to use ...
14
votes
4answers
44k views

How to force Multiple Monitors correct resolutions for LightDM?

I am affected by the BUG: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/874241 Otherwise, if like me you have a laptop connected to a second monitor of higher resolution, LIGHTDM at the ...
9
votes
1answer
512 views

What keys can I use to navigate Unity Greeter with a keyboard?

I have a media center with a keyboard but no mouse. Is there a way I can navigate the Unity Greeter with a keyboard so I can change the session I log into, etc.?
2
votes
1answer
1k views

User-level script run by lightdm

I'd like to do key remapping that effects only my user, but everywhere within my window manager, not just in a terminal. In lightdm, I select awesome as my window manager and log in. Are there any ...
1
vote
1answer
225 views

Session is restarted continuously (Ubuntu 11.10)

This is my first question in Ask Ubuntu and sorry for my English (it is not my native language). I have installed Ubuntu 11.10 on my laptop and I have a problem that annoys me quite a lot. When I'm ...
2
votes
2answers
359 views

How can I login to a display-less machine via ethernet?

I have two Ubuntu systems. The first I'd like to use as a server. Hence I don't have a display or even keyboard for it. The other is my laptop and can connect to the network. Upon bootup, the ...
3
votes
2answers
686 views

How to return to the GUI?

I am very new to Linux and Ubuntu. I use Ubuntu 11.10. I was trying to exit the X server (in order to install some Nvidia drivers) and I typed in the terminal: sudo service lightdm stop How can I ...
3
votes
0answers
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How can I make the LightDM lock screen my gnome-shell lock screen in 12.04 [closed]

In Unity, LightDM is the default lock screen. Is it possible to make LightDM my default lock screen in gnome-shell ?
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vote
0answers
384 views

How can a run a login/logout script as root? [duplicate]

Possible Duplicate: Where do I place a logout script for Lightdm? How can I make login/logout scripts? Something like /etc/gdm/PostSession/Default and /etc/gdm/PreSession/Default.
6
votes
1answer
3k views

Custom LightDM sessions to launch an application

I'm trying to set up Ubuntu to act as a kiosk running a custom application, and am trying to get a LightDM session built to automatically start it. Ideally, I'd like to have two sessions available ...
3
votes
1answer
404 views

If I fill my harddrive, why can't I log in?

I was stupid, I kept ignoring the warnings that my harddrive space was running low and left a download running in the background. When I logged out, I wasn't taken back to the login screen (LightDM), ...
4
votes
4answers
5k views

xhost setting at boot

I am able to set xhost at boot in Fedora by editing /etc/gdm/Init/Default and for example add: /usr/bin/xhost +local: How can similar be done in Ubuntu? I want that the /usr/bin/xhost +local: ...
3
votes
3answers
2k views

How can I make a Multiseat with Xephyr?

I'm trying to use multiseat with Ubuntu, but I can't make this work. I've read a lot of "how to", and the most of them are about doing a multiseat with some distro with GDM2, or KDM. But, I'm using ...
4
votes
1answer
2k views

How-To limit user-names in LightDM login-screen when AccountsService is used

I have several "user" names in passwd that don't represent real people, and that should not appear on the LightDM login-screen. The lightdm-gtk-greeter configuration file clearly says that if ...
2
votes
1answer
2k views

Change LightDM session name entries for Desktop Environments?

When using LightDM, sessions, (not usernames) are named in a way I would like to change, for example, Ubuntu is Unity 3D, and I would like to name it that way, the following to: Ubuntu 2d to Unity ...
3
votes
1answer
796 views

No login screen after logout

this is my first question about Ubuntu :) Since this morning when I log out (top right icon, log out) I don't get the usual GUI login screen but I get this instead: If I log in with the Ubuntu 2D ...
1
vote
0answers
65 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
0answers
55 views

How does one disable the display of certain users by LightDM? [duplicate]

Possible Duplicate: How do I hide a particular user from the 11.10 login screen? In Ubuntu 11.10, the /etc/lightdm/users.conf file states: NOTE: If you have AccountsService installed on ...
27
votes
13answers
66k views

How to disable automatic login in LightDM?

I was playing around with "User accounts" and somehow set automatic login. Now, when I start my PC, it just has one button named as "login". Clicking that button, directly logs me in to my PC. There ...
0
votes
1answer
672 views

Is LightDM is broken? Autologin works

I recently upgraded my Mythbuntu box to 11.10. LightDM worked for a while and then I configured autologin on my user account. After some time, I've removed some packages to lean down the system. Now ...
2
votes
1answer
1k views

Why am I unable to restart or shutdown my computer from the LightDM login screen? [closed]

I'm not sure whether this is a bug (in which case I'll submit a report) or I'm doing something silly! My problem is that I cannot restart or shutdown my computer from the LightDM login screen, this ...
1
vote
1answer
3k views

Can't get NVIDIA drivers to work on Dell Latitude E6520, Unity on Oneiric [duplicate]

Possible Duplicate: How well do laptops with Nvidia Optimus work? My external monitor works fine when connected to my laptop's dock using a VGA cable. However, with a DVI cable, I can't ...
3
votes
1answer
521 views

Login screen is rotated [closed]

When I turn on the computer, the login screen is rotated. But when I log in to my account, the screen is normal. I have an ATI graphics card on an AMD laptop. The settings is normal for two user ...
0
votes
0answers
496 views

How do I automatically enable Num Lock at the login screen? [duplicate]

Possible Duplicate: Force numlock to be on on boot at login screen I want to automatically enable num lock (i.e. light is on), and use LightDM as my desktop manager. How can I do that?
21
votes
2answers
4k views

Is there a way to shut off showing the user's wallpaper at the login screen?

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?
3
votes
1answer
244 views

No Unity session after update

After I updated Ubuntu 11.10, LightDM won't show the Unity entry anymore. What can I do, to get the Unity (3D) entry back? NV drivers are fully working. I installed Gnome 3 weeks before.
2
votes
2answers
2k views

Ubuntu Wont Login

I have Ubuntu 11.10 installed... for some unknown reason it wont log me in. entering the password returns me to the login screen immediately i googled for solution and applied the following and yet ...
10
votes
3answers
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No password asked at login screen just start session button with LightDM

When I first installed Ubuntu I choose NOT to ask me for a password at login. That was ok for that moment cause it didn't ask me any password at login. But now I want to be asked for a login password. ...
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 ...
1
vote
2answers
2k views

lightdm and gdm broken after upgrade to 11.10

I upgraded to oneiric. When my machine boots, I get a black console with text messages listing the services that are starting up, and then my machine sits there in that state and lightdm never comes ...
4
votes
2answers
8k views

How does “Accounts Service” work with lightdm?

I have added two users using the command useradd but they do no show up in the lightdm/unity-greeter login screen. So there is no way to graphically login for them. It seems Accounts Service ...
2
votes
0answers
427 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 ...
2
votes
0answers
1k views

Ubuntu 11.10 Crashing (maybe “gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server”) [closed]

MY Ubuntu 11.10 crashed the 2nd time in few hours recently, I looked at the syslog and pasted it below. I think the cause might be the either of the following lines? gnome-session: Fatal IO error 11 ...
5
votes
3answers
3k views

Where is the login screen wallpaper located?

I want to know this because I like the picture used and I'd like to use it elsewhere. Where is the LightDM login screen wallpaper located in Ubuntu 11.10?