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

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1answer
474 views

How can I get the computer to sleep while at the login screen? (No users logged in.)

I have my computer set to "Suspend when inactive for 30 minutes" in system settings. This function works fine if a user is logged in and does not do anything for 30 minutes. However, if all users are ...
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votes
2answers
1k views

User login cycles [duplicate]

Just install 12.04-64bit and while I can login using the guest login, I cannot with my user login: it just cycles back to the login screen. I have performed the sequence of apt-get update/upgrade and ...
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 ...
3
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 ...
3
votes
0answers
962 views

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 ?
3
votes
1answer
478 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 ...
3
votes
0answers
326 views

After upgrading from 11.04 to 11.10, gnome-shell entry in Lightdm actually launched Unity [closed]

I had Ubuntu 11.04 installed running gnome 2. I upgraded to 11.10 and everything went very smoothly. I installed GNOME Shell via: sudo aptitude install gnome-shell Logging into the Gnome session ...
3
votes
1answer
1k views

How to remove the old gdm [duplicate]

Possible Duplicate: How can I make LightDM the default display manager? I have installed Ubuntu 11.10 beta and all of its changes are now working and let me testing them, but the only ...
2
votes
2answers
749 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.
2
votes
2answers
711 views

How to return the login screen of the original unity ubuntu?

I've installed the LightDM GTK+ Greeter 1.7.0 as below sudo add-apt-repository ppa:lightdm-gtk-greeter-team/stable sudo apt-get update sudo apt-get install lightdm-gtk-greeter ...
2
votes
4answers
6k views

12.04: LightDM freezes while “Logging in…” - maybe due to deactivated login sound [closed]

good morning, lightdm freezes often after I entered my passwort. It hangs exactly saying "logging in...". It's no total system breakdown though. I found out that there is already an existing bug ...
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votes
2answers
2k views

How to edit lightdm to show “other user”?

I am an IT student aide at a college and we have a very small test computer that we started messing around on with 12.04 and used likewise to join it into the Windows network that we have. However, ...
2
votes
2answers
269 views

Why are the login boxes on the left and how can I easily move them to the center?

I wonder why Ubuntu chose to put the login forms at LightDM in the left instead of centering it. I find it totally ugly and a mental effort when I boot up and try to find the login with my eyes ...
2
votes
2answers
345 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 ...
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
1answer
957 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 ...
2
votes
3answers
2k 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: ...
2
votes
3answers
2k views

How to run greeter/login script with lightdm

Is there a workaround to run a lightdm script? The one in the docs doesn't work. Anything placed there will prevent X from working. The script I would like to use is my KVM utility synergy. I ...
2
votes
1answer
1k views

How to let screen time out on sign in screen [closed]

I have Ubuntu 13.10 set up on an older PC. If I am logged in as a user, then the screen timeout and power saving mode works as expected. However, if nobody is logged in, the screen never times out, ...
2
votes
1answer
45 views

How can I list the WM manager sessions available from the command line?

How can I list the WM manager sessions available from the command line? I want to know what sessions are available to pass to thr lightdm-set-defaults utility.
2
votes
1answer
2k views

How to install pantheon-greeter in 13.04 Raring?

Refer here: QUESTION Those are the exact step I did in my install - a raring x64 server install + all needed xorg packages to run a GUI + MATE 1.6. Basic lightdm + unity-greeter is flawless, as well ...
2
votes
2answers
424 views

How can I use custom wallpapers for the login screen?

I recently Installed 12.10 version and I loved it! But the there's something weird with Wallpapers. As long as I use a wallpaper from the /usr/share/backgrounds folder (I use the "appearance" dialog ...
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
1answer
230 views

unity greeter not showing selector

i have installed gnome3.7 from gnome3 ppa and i have removed evolution using sudo apt-get remove evolution* and accidentally it removed gnome, gnome-shell and bunch of other things and now when i ...
2
votes
4answers
19k views

“the system is running in low graphics mode” I get this message when I boot my ubuntu

I had got into a serious problem while solving my the system is running in low graphics mode using this link. This guy and I have almost same Nvidia card. Mine is just bit more newer, so when I was ...
2
votes
1answer
159 views

Launch a program when X starts

I want to launch a program when X (not unity/gnome/etc) starts. In particular, I want to launch xset r 105 when lightdm starts. Is there a way to do it? I tried writing this into ~/.xsessionrc: ...
2
votes
1answer
209 views

How could I customize LightDM to load some Custom code I made?

I've written a code in C++ for a bio-metric lock which I want to add to the log in screen beside the password. Any idea from where should I start?
2
votes
1answer
288 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
1k 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 ...
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 ...
2
votes
2answers
11k views

Monitor not detected - low resolution only

I just installed Ubuntu 11.1 on my desktop pc. It was a clean install, no upgrading. I have a Samsung Syncmaster BX2450 connected to the PC. My problem is that I cannot make Ubuntu recognize my ...
2
votes
1answer
340 views

Is “gdmflexiserver” part of the default installation?

While playing around, I discovered a folder in my $PATH that I did not recognize: $ echo $PATH /usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games $ ls ...
2
votes
2answers
748 views

Black screen on login maybe lightdm problem

Hi after I entered this command in terminal: sudo sh -c 'echo "greeter-show-manual-login=true" >> /etc/lightdm/lightdm.conf' and I reboot my PC i cannot login to ubuntu. After i select the os ...
2
votes
1answer
919 views

LightDM is missing Gnome Shell icon

the Icon of Gnome shell is missing from lightDM.. I had to manually add Gnome Shell to lightDM because it didn't install properly on my machine. now I don't now how to add the Icon to lightDM. Im on ...
2
votes
2answers
209 views

Not able to login with LightDM

I am using Ubuntu 13.10 with Unity desktop. Unfortunately I am not able to log into my desktop. After entering correct password it keeps looping back to login. Could you please help me to sort out ...
2
votes
1answer
176 views

Switching between console and GUI in ubuntu

When in GUI mode, is there a CLI commands that kills the GUI and drops me into the console? When in CLI mode, is there a CLI command that drops me into the GUI? I found startx, but this drop me into ...
2
votes
2answers
151 views

How do I restore Boot GUI and Login of Ubuntu 13.10 to the original?

Okay, so I installed a few extra desktop environments, one of which was the Xubuntu pack, and it replaced my login screen and Boot GUI as mentioned. I made the mistake of trying to purge Lightdm and ...
2
votes
2answers
6k views

mei_me unexpected reset

Yesterday I experienced some troubles with my ubuntu installation. After reset, my system didn't start lightDM, all I saw was a black screen. I then logged in via ctrl + alt + F1 to terminal and saw ...
2
votes
1answer
781 views

Default login screen missing, how to revert?

I installed some KDE stuff by mistake. After removing it, my login screen now is quite different; has a white background and the user icons+input appear in the centre. [note that I have tried sudo ...
2
votes
1answer
335 views

Ubuntu 12.04 boots to login screen but (I think) X.org crashes on login. Help Appreciated! [duplicate]

I've been running Ubuntu 12.04 since it's debut in 2012 without a single problem. Today I just ran sudo apt-key update && sudo apt-get update and then I rebooted my computer. After rebooting ...
2
votes
4answers
5k views

Ubuntu 13.04 - can't login to Unity, keep going back to login screen with all users

today I've updated openssl and libssl (automatic update). After reboot I can't login with any user (even with Guest or new one) into X. I've tried with installing gdm, gnome-session-fallback - no ...
2
votes
2answers
3k views

Login Screen/Background Change? (kubuntu)

I have Kubuntu 13.04 (last version) and lightdm I want to change my login screen background (not my wallpaper after I type my password. I'm talking for the image you see WHEN you type your password). ...
2
votes
1answer
160 views

Background missing in loginscreen and in guest session.

Yesterday I followed this answer on "How do I add customized wallpapers so they appear in the dynamic unity greeter?" to make my wallpaper appear in the login screen. But instead of only changing the ...
2
votes
1answer
193 views

Startup applications can be run on the login screen stack without logging in?

I'm going to set up my computer to be turned on at night and it will automatically start downloading. For security reasons, I do not want to set up Ubuntu to automatically login! the problem is login ...
2
votes
2answers
620 views

switcheroo to discrete turns off backlight on laptop screen

AMD cedar/ Intel ironlake hybrid graphics. Custom kernel 3.8.3. Free radeon xorg drivers. When I switch from integrated to discrete, I do a killall lightdm and X doesn't automatically respawn like it ...
2
votes
1answer
3k views

LightDM: “Failed during authentication”

After entering login info in lightdm, screen blacks out for a second and returns back to the login screen again. However, I'm able to login through TTY and gdm without any problem. As the log file at ...
2
votes
1answer
151 views

lightdm execute script as user

At our computer department we need to run a script with user rights wenn the user logs in. Adding the script to .config/autostart is not an option since the script must not be disabled by the user. ...
2
votes
1answer
138 views

Should switching users switch TTY as well?

In trying to troubleshoot user switching hangs and irregularity's I noticed if I log in as user A then switch to user B, and then press, (TTY7) will take me directly back to the unlock prompt for ...
2
votes
2answers
1k views

how do I remove the last connected users from the lightdm greeter list

With gdm3, I was able to remove the last connected users from the list by removing the file '/var/log/ConsoleKit/history' With lightdm, the last users appears even when : removing ...
2
votes
2answers
3k views

lightdm.conf content erased, now stuck in low graphics mode [closed]

This evening I was attempting to disable the guest account and something went awry. Currently on boot Ubuntu enters low graphics mode. No specific error report. What did I do? Before this error ...