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

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Console login redisplays login screen after entering password

I attempted to login the console using 'ubuntu default' and after a very brief moment of displaying the desktop background I am returned to the login screen. It was working flawlessly until a few ...
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5answers
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How to restore LightDM settings?

I've been playing with some of the settings on simple LightDM manager, and I'm not really sure I like what I've done. I've uninstalled LightDM manager but settings remains. How can I restore LightDM ...
0
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1answer
38 views

lightdm crash back to login Ubuntu 15.10

I tried the solution posted in Ubuntu 15.10 random lightdm crash but when I got to the step of reinstalling lightdm* a couple errors came up (I didn't write down what they were). Now I'm stuck in ...
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2answers
5k views

How to fix Ubuntu 14.04 LTS login screen hangs with “logging in…”

Anyone have suggestions for this: I upgraded my Ubuntu system to 14.04, and the upgrade failed miserably. I was forced to restart the system in order to get to a login. After following several ...
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1answer
25 views

How to log in automatically in Xubuntu 15.10?

I'm struggling in my Xubuntu 15.10 installation to let my user automatically log in each time. I've found two interesting threads so far, but the are referring to older versions of Xubuntu, the ...
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0answers
29 views

Lightdm is giving me “The system is running in low-graphics mode”

I was trying macbuntu on Ubuntu 15.10 and due to some bug in it, i wasn't able to login into the system as login screen was coming again and again even after feeding in the right password. So, i ...
3
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3answers
8k views

Type password into login screen, hit enter - nothing happens

I first install Ubuntu 13.10 a few weeks ago and its been going great. I'm still pretty new to Linux, so I haven't been doing a whole lot. The past couple days I've tried installing LAMP, then ...
0
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1answer
25 views

Ubuntu Login Loop After Google Authenticator installation

My Ubuntu 14.04 LTS Desktop was working fine until I decided to play around with Google Two Factor Authentication for Linux. I followed instructions and setup the google-authenticator. When I ...
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2answers
5k views

Login as domain user Ubuntu 14.04

I have installed PowerBroker aka Likewise-open on my Ubuntu 14.04 desktop. I successfully added the desktop to the domain but I am unable to login as a domain user at login screen. I found some ...
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0answers
12 views

Numix-circle icons not effective in Unity-greeter

I'm using Ubuntu 14.04 and using the Numix theme with the Numix-circle icons. I like very much the unity-greeter as a login environment, is elegant and I think it goes really well with the Numix theme ...
3
votes
1answer
123 views

Installing Brasero removes 100+ packages and impairs internet and display manager

I was thinking to have solved one problem with Paraview but have come across a bigger one with Brasero. A few days ago I wanted to install Paraview (amd64) in my computer (x68_64, Ubuntu 12.04 LTS) ...
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31answers
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Ubuntu gets stuck in a login loop

My Ubuntu is stuck in a login loop when trying to enter my desktop. When I login, the screen gets black and soon after that the login screen comes back. I've read that the problem might be caused by ...
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7answers
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ubuntu 14.04 login loop problem

My Ubuntu 14.04 is stuck when trying to login my desktop. The screen goes black and soon after that the login screen comes back. I followed all steps in Ubuntu gets stuck in a login loop but the ...
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0answers
12 views

Changing Wallpaper crashes desktop

Recently (might have something to do with lightdm), when trying to change my wallpaper (either manually or through an automated one like Variety) my desktop seems to crash to where I can't click on ...
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votes
2answers
5k views

Why is the evolution-calendar-factory process running?

Why is the evolution-calendar-factory process running? Here are some of the running processes (created with ps aux --forest) lightdm \_ /usr/bin/X -core :0 -auth /var/run/lightdm/root/:0 -nolisten ...
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0answers
31 views

Login loops back to login after upgrade from 12.04 to 14.04

After upgrading from 12.04 to 14.04 I encountered the login loop, I tried the soloutions posted here http://askubuntu.com/a/223634/499207 to no avail. The last one, dpkg-reconfigure lightdm made ...
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0answers
19 views

Why GNOME as default in Login Screen even after lightdm as Default?

After running sudo dpkg-reconfigure lightdm it has successfully set Unity as DE but there is an annoying text called (default) in Gnome's row when selecting DE at login screen. Is it normal ? ...
3
votes
2answers
3k 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 ...
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0answers
19 views

ubuntu is loading forever

My 15.10 ubuntu laptop is not starting... (normaly) is just loading and loading not my picture but is the same if i go into the bootmenu and use safeboot and then go to comand line log in and ...
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3answers
581 views

Change the background of the login screen

I installed Ubuntu Studio 15.10 and upon that: sudo apt-get install ubuntu-desktop Now on the login screen, I have the default brownish Ubuntu default background. I tried this as root: sudo ...
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1answer
17 views

Error while attempt to change login screen background picture

Open a terminal and get root sudo -i (Type sudo password) Allow the user lightdm to create a connection to the X server xhost +SI:localuser:lightdm Switch user to lightdm su lightdm -s ...
3
votes
0answers
333 views

How do I rotate the login screen?

So I am trying out the 14.04 and I keep both of my monitors in portrait mode. But the login splash is in landscape. But I can't seem to figure out how to rotate my login splash or where the config is ...
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0answers
114 views

Why does my thinkpad log in automatically if I lock my screen, shut my lid and then reopen it?

I've noticed some strange behaviour while working today. If I lock my screen with ctrl+alt+l it takes me to the login screen. If I then decide to shut my laptop it suspends correctly. But when I ...
7
votes
1answer
28k 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 ...
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0answers
24 views

Kubuntu 14.04 not loading lightdm after update

After updating my Kubuntu 14.04 setup yesterday, the computer now stops booting before the login manager pops up. Pressing the Esc key reveals that the lightdm manager is failing to load for some ...
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0answers
14 views

lightdm greeter complains Failed to open /dev/null

While upgrading from Ubuntu 12.04 to 14.04 something went sideways. I picked at it and got through. My system's very functional now. However, Lightdm is screwed up. If I manually run X and activate ...
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0answers
13 views

Unity-greeter or lightdm-greeter-gtk change password on login screen

I'll install and configure Ubuntu 14.04.3 with ActiveDirectory and All ok, but I can not configure the change password on login screen. Message with warning about expaire password display, but ...
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0answers
18 views

Lock screen automatically in lightdm

I have a custom install of Ubuntu with lightdm and openbox. I want to automatically lock my screen when it is inactive for a set period of time. I can lock my screen with dm-tool lock But I don't ...
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2answers
157 views

Ubuntu 15.10 random lightdm crash

Recently upgraded to 15.10 (from 14.04 I had to wipe everything to upgrade because of an interrupted initial upgrade from 14.04 to 14.10), and after working out the kinks and getting my settings back ...
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0answers
103 views

Lightdm won't start anymore - Intel i915

I gave a try to nvidia-prime. Worked at first had my desktop running on nvidia card, but after reboot, it stopped working so I purged the nvidia packages and I am now stuck with a lightdm not running ...
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votes
0answers
29 views

How to set default desktop enviroment 15.10

Things appear to have changed from 14.04. Then, my last desktop environment was remembered and I did not have to select one each time from the greeter login. One user defaulted to cinnamon, another to ...
0
votes
1answer
31 views

Lightdm doesn't show wallpaper/background and colors are wrong

The symptoms of the problem are that only default Ubuntu wallpaper is shown in the login screen, the password field, host name (in the top left corner) and menu (in the top right corner) have an ugly ...
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votes
2answers
5k views

Can I set a default user in lightdm?

I've been playing with Ubuntu Oneiric on my netbook (where breakage isn't really a concern); I like the new lightdm login screen, but it has one minor annoyance: in addition to my own user account, ...
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0answers
26 views

Crash X manually

I'm working on a the famous freezing of X server. I've already created a question about frozen X server detection As I don't have relevant answer yet, I'm wondering if anyone knows a way to ...
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votes
2answers
6k views

Which command locks screen with lightDM?

I used to lock screen with this command, but it stopped working recently, probably after update. I'm running VERSION="13.10, Saucy Salamander". How can I restore this function? $ gdmflexiserver ...
0
votes
1answer
27 views

Quit LightDM & launch a new x-session with an alternative xorg.conf

I'm using Ubuntu 15.10 with the following configuration: LightDM, XFCE, set to one screen across two physical monitors running from two outputs on a single NVIDIA card. This is my normal environment ...
18
votes
3answers
46k 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)?
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0answers
62 views

Cannot make it to login (gdm/lightdm bugs) after Nvidia driver update tentative

I used my girlfriend's computer which runs on Ubuntu 15.10 (wily) and wanted to update the Nvidia GPU. I did install the last driver released on the Nvidia website corresponding to this Geforce GT720. ...
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votes
2answers
79 views

mdmsetup returns exit status 1

I'd like to install and use mdm over lightdm with Cinnamon. I've installed mdm, but gksudo mdmsetup just opens a dialogue requesting authentication, then immediately exits with code 1. There's ...
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votes
1answer
84 views

Ubuntu 14.04 LTS 64 bit login loop

I have Ubuntu 14.04 LTS 64 bit. So I changed my password through recovery mode, and now it is in log-in loop. Whenever I put Xauthority it says "No such file or directory" When I put in my actual ...
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0answers
40 views

Ubuntu 14.04 Login Loop - need to create new user after every reboot?

I'm running ubuntu 14.04 on a virtual box within a windows 8 host machine. I've had the misfortune of stumbling upon the dreaded ubuntu 14.04 login loop after a sudo apt-get upgrade command, and have ...
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2answers
66 views

Ubuntu 14.04 stuck in login loop after update, nothing seems to help

I updated my ubuntu 14.04 after it was being unused for 4 months. The updating took enormously longer time than usual, and after that the computer was very slow. I rebooted the computer and now I ...
0
votes
2answers
59 views

can't start lightdm without systemctl

i'm running ubuntu 15.04, nvidia card 970gtx, drivers installed manually using nvidias script. i have fake raid 0 to dual boot windows 7 and ubuntu. i also have 4 drives using mdadm for raid 5. ...
0
votes
3answers
5k views

How to get Pantheon Greeter on Ubuntu 14.04 instead of Unity Greeter

I'm running Ubuntu 14.04, how can I replace the lockscreen with the one on Elementary Luna (Pantheon-Greeter). Thank You!! Edit: Can anyone do it and confirm it works completely?
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vote
0answers
64 views

Fully encrypted system boots to Terminal login instead of GUI

When I switch on computer, because I have it encrypted, it always first asks for my passphrase in the GUI. I enter the phrase, then still in the GUI it normally asks for my password, and goes to the ...
0
votes
1answer
8k views

No desktop appears after loged in using XDMCP

I just installed a test machine with Ubuntu LTS 14.04 and I went to configure the XDMCP access and found that the file /etc/lightdm/lightdm.conf is not there anymore. In Google I found that now it is ...
4
votes
2answers
464 views

Use of Yubikey Neo for login 2FA and lock screen

I want to use my Yubikey Neo to login to Ubuntu 14.04. In addition, it would be convinient if the screen is locked automatically everytime I unplug the Yubikey.
0
votes
1answer
46 views

15.10 lightdm broken - gdm works

After some updates to my system lightdm seems to be broken (can't get a session with lightdm to work, always ending up in low graphics mode at boot). If I chose gdm it however works. But I would like ...
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0answers
33 views

How do I restrict a user to a specific thin client?

I am using 10 thin clients on Ubuntu 14.04 LTS with an xdmcp server. All thin clients display all user names and allow any client login with any user account. Even two or more thin clients login with ...
0
votes
0answers
21 views

Lightdm Webkit Greeter, can't use it

I have Ubuntu 14.04, and ATI HD 7870, using fglrx-updates driver. I just installed lightdm-webkit-greeter to use some themes. However, to activated all the guides I saw said; change the: ...