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

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3
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2answers
30 views

Change Icon for Window Manager at login

is there any way to change the icons for a Window Manager at the login screen? This one: The files are in /usr/share/unity-greeter/ that I know, but can I change the Icon for a WM if it has none? ...
0
votes
1answer
19 views

Make lightdm login on the correct monitor?

Is there a way to get lightdm to display on the correct monitor? It defaults to my DVI monitor on the right, but I want it on the DP monitor on the left.
0
votes
0answers
19 views

Wrong language at login screen

Kubuntu 15.10 with all (or almost all) updates. LightDM is used. HW is HP EliteBook 8530p. I'm using three languages: English, Russian, Georgian (in this sequence as I've listed them). Switching ...
3
votes
0answers
85 views

15.10 Unity stuck after login, even as guest, background image permission denied despite 644

Yesterday I ran the last Ubuntu security updates, and now my desktop does not open anymore. Only the purple login wallpaper is visible (my user wallpaper is different and does not appear) and I can ...
1
vote
1answer
218 views

How to change lock screen background Ubuntu Mate

I would like to change the lock screen background in Ubuntu Mate 16.04. I have found out how to change the background for unity by changing the com.canonical.unity-greeter setting but I can not find ...
1
vote
0answers
53 views

How to set new user (and guest) default theme settings

I recently installed gnome shell to try it out. I want to be able to switch between the 2 environments. (unity + gnome shell) The problem is that after installing gnome shell, all new users ...
1
vote
0answers
12 views

Is there a way to add a splash screen while lightdm is switching users

I share a laptop with my 10 year old daughter. We're using Ubuntu 14.04lts and when she switches to her own account LightDM blanks the screen for a 10 to 20 seconds, sometimes longer. For a 10 year ...
0
votes
0answers
81 views

14.04 Login Loop

I know there are already several questions about this problem. However, I did not find a solution using the answer already provided. I just installed Ubuntu 14.04 LTS dual-boot alongside Windows 8. ...
0
votes
0answers
15 views

Cannot login with Xserver on Ubuntu 12.04

I cannot login on my account using the X Window System. However I can login from a different machine using ssh and locally using text terminal. I tried to restart the X server with sudo restart ...
0
votes
1answer
27 views

thor27's steam-login without entering Big Picture

I've installed steam-login, which allows me to start Steam as a standalone session directly from the lightdm login. By default, it starts Steam on Big Picture mode, but I would like it to start on ...
0
votes
0answers
10 views

Lightdm - Login using two passwords?

I was thinking of an extra security layer by using two passwords for login. Is it possible to configure lightdm in such a way that it will ask you for two correct passphrases? I thought of including ...
0
votes
1answer
36 views

Unable to log in after graphics driver change

After switching from the proprietary to the open source AMD GPU driver via the "additional drivers" menu, my display was not recognised properly after rebooting. It was automatically set to 93Hz (60Hz ...
1
vote
1answer
74 views

Ubuntu blank purple screen on startup

I have Ubuntu 14.04 32bit LTS installed along with Windows 8 (dual boot). I do not have any graphics card(nvidia ,amd ,etc). I have Intel hd graphics driver. It worked fine for many days, but now, on ...
0
votes
0answers
52 views

Problems getting Synergy to autostart at boot time

I've got a windows PC, and an Ubuntu 14.04 LTS machine. I have a keyboard and mouse connected to PC, and Synergy to remote on to the 14.04. I have to unplug the mouse and keyboard and sign in to ...
1
vote
0answers
57 views

External monitors have no signal after boot if laptop lid is closed

I have a Lenovo Thinkpad t440s with the intel graphics card running Ubuntu Desktop Trusty 14.04.4 LTS. This issue occurs with the ThinkPad Ultra Dock with two external monitors attached to it. After ...
1
vote
0answers
71 views

Start Ampps, with root permissions, once desktop loads

Been hacking my way through getting Ampps to work on Ubuntu. Ampps will be used to use host a local Web app for my families business, and I need Ampps to start when Ubuntu starts, always. I figure I ...
0
votes
0answers
17 views

Updated: lightdm doesn't work after installing NIS

I know this has been discussed, but none of the answers I've seen seem to help. My apologies if I'm beating a dead horse. (Please tell me) When I install NIS with autofs on top of a vanilla Ubuntu ...
0
votes
1answer
143 views

Ubuntu 14.04 Infinite log in after installing nvidia drivers

I just installed ubuntu and I'm trying to get the drivers for GTX 960m. I followed the instructions given here: ...
0
votes
0answers
35 views

LightDm fail - I can't get the login screen - Some packages can not be installed Depends libcheese7 and libcheese-gtk23

I can not get the login screen. I have tried the suggestions given in the forums, such as uninstall lightDm or gdm and install again, but it does not work. I get the following message when I try to ...
0
votes
1answer
88 views

How to make Lubuntu login automatically?

I want to know how to make Lubuntu 14.04 restart every two hours, login, and open a program. I am currently stuck on the first part which is to make it login automatically. I have tried changing ...
0
votes
0answers
45 views

desktop freezes frequently when working on high performance mode (nvidia graphics card) : ubuntu 14.04

I am using a Lenovo Z40 laptop with hybrid graphics Indtel HD + Nvidia 820M and ubuntu 14.04 with a kernel 3.13.0-79-generic. My desktop keeps freezing on me very frequently but only the keyboard ...
0
votes
0answers
12 views

logout isnt working [duplicate]

What is the command to log out using the terminal? my logout button isnt working. Im sure I can exit using sudo pkill lightdm is that the command, or is there something else? I’m using Ubuntu mate ...
0
votes
0answers
87 views

Desktop login fails/loops , “Could not get UID of name …”

With Ubuntu 14.04.4, I cannot login with the unity desktop. No answer from Desktop login fails, terminal works helped. After latest update for 14.04, cannot log in to any user account did not help ...
1
vote
3answers
76 views

Xubuntu 14.04 - Strange “Log Out” button behavior

I'm currently using Xubuntu 14.04. Today, February 19th, I got home and was presented with some upgrades (which updated Xubuntu to the 14.04.4 point release). But I don't know if these upgrades are ...
0
votes
1answer
49 views

How can I fix lightdm login black border?

There is a black border around my login screen every time I boot up. I have a second monitor connected and noticed that the background of the first monitor shrinks so that it matches the background of ...
0
votes
0answers
91 views

xubuntu 15.10 & lightdm setup issues

I've installed xubuntu 15.10 with a minimal installation of xfce (from mini iso). So let me explain my setup and needs. I have created 3 users : maintainer : for administration task, hidden from ...
0
votes
0answers
126 views

Login Loop after install nvidia driver on Ubuntu 15.10

I tried to install Ubuntu 15.10 but I always get an login loop after I install the nvidia driver I'm using an dell inspiron 15 7559. First of all I upgraded the kernel to v4.3 for the skylake ...
0
votes
0answers
44 views

unable to login, issue with graphic drivers/lightdm

While trying to solve one issue with my monitor I created one much worst! Now, I cannot login with my user account, when I type the password, it shows a black screen (less than 1 second) and then the ...
1
vote
1answer
46 views

How to purge lightdm users list?

The computer is configured with FreeIPA (ipa-client). After a user has logged in for the first time, it is listed on the logon screen. However even when the user has been deleted on the FreeIPA server ...
3
votes
0answers
80 views

Multiseat on one video card

I'm trying to set up a multiseat configuration on a single video card (Nvidia GTX 680) under Kubuntu 14.04. I can run two x-screens for one user, what nvidia-settings natively supports. So I think ...
0
votes
1answer
58 views

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

In my Ubuntu 14.04 /etc/lightdm/unity-greeter.conf and /etc/lightdm/lightdm.conf files are missing. Only /etc/lightdm/users.conf file is there in /etc/lightdm/ directory. And login screen is not ...
0
votes
0answers
63 views

Unable to login to GUI 14.04

I am unable to login to the GUI after an upgrade: Feb 15 09:32:07 dl-maa-00391506 lightdm: pam_unix(lightdm-greeter:session): session closed for user lightdm Feb 15 09:32:07 dl-maa-00391506 lightdm: ...
0
votes
0answers
49 views

How to load policykit privileges with X on Ubuntu 14.04

In Ubuntu 10-12 I was able to boot in text mode and run startx. However, from a fresh install of 14.04, if I disable lightdm and use startx, startx will load the desktop environment without any ...
1
vote
1answer
32 views

Authorization problems after VNC uninstalling on Xubuntu 12.04

I had setup vnc through vncserver script http://manpages.ubuntu.com/manpages/hardy/man1/vnc4server.1.html .This script were launched under the root. After that i decide to use xrdp instead vnc and ...
-1
votes
1answer
103 views

run startup script which requires a xserver session

I have a python3-script which uses the Gtk-module (imported from gi.repository, for recent-manager functionality), requiring a link to the current xserver session (lightdm service in Ubuntu). Running ...
0
votes
0answers
70 views

Whenever I press the power button in the login screen, my computer shuts down immediately

I sometimes leave my computer for long periods of time, and after a while, my computer will require a password to re-enter the live session. However, when I come back, since the screen has already ...
0
votes
0answers
20 views

can't change from gdm and monitor swaps after login

I ran updates yesterday. This morning, the login screen had changed from lightdm to gdm (i think) and three seconds later the screen went blank. I couldn't even get to ctrl alt f1 terminal. I did a ...
0
votes
0answers
62 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 ...
0
votes
1answer
50 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 ...
0
votes
1answer
59 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 ...
0
votes
2answers
119 views

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 ...
1
vote
1answer
169 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 ...
0
votes
0answers
44 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 ...
0
votes
0answers
23 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 ? ...
0
votes
0answers
62 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 ...
0
votes
0answers
151 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 ...
0
votes
1answer
32 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 ...
0
votes
0answers
50 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 ...
1
vote
0answers
123 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 ...
0
votes
0answers
31 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 ...