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

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2
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1answer
168 views

Two different login/lock screens

I have Ubuntu 15.10 installed and when I first start my computer it gives me the really nice looking ubuntu lightdm login screen but anytime I lock the computer I get the really nasty looking gnome ...
6
votes
1answer
69 views

Lightdm greeter - theming of option-button

I try to theme the unity lightdm greeter and I've succeeded in doing so by looking at the source code and the Ambiance .css files. One thing I'm not able to theme however is shown in this short video, ...
0
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0answers
132 views

Ubuntu 14.04 LTS login loop both in unity and gnome

after uninstalling a not-working Chinese input method, I have been experiencing a login session loop problem. After I type the correct password for the login, the screen blinks and comes back to the ...
0
votes
0answers
167 views

How to get back Unity Greeter? Replace MATE Greeter?

So I installed Ubuntu Mate desktop environment for my 14.04 LTS (Trusty) and I am really liking it but Mate also replaced the Unity greeter which I want back... I searched about how to get back the ...
0
votes
1answer
37 views

Lightdm freezes on startup if wait for GRUB

I am on Ubuntu 14.04 on this hardware (with no external/proprietary driver needed). These are the enabled official repositories (all but proposed) and these are the external ones (Google Chrome, ...
0
votes
1answer
560 views

NVidia GTX960M in Optimus: Intel driver extremely laggy, NVIDIA driver results in login loop [closed]

I have a Dell Inspiron i7559 laptop (GTX960M + Intel) for which I am trying to install Ubuntu, but I am having a lot of issues with the NVidia graphics. Because of the dependencies of some software I ...
0
votes
0answers
66 views

GNOME desktop environment not starting

I recently moved from Unity to the Ubuntu MATE desktop environment. I was trying to install the GNOME desktop environment. I followed the following steps: sudo apt-get install gnome-shell sudo ...
0
votes
0answers
12 views

How to get back Unity Greeter? [duplicate]

So I installed Ubuntu Mate desktop environment for my 14.04 LTS (Trusty) and I am really liking it but Mate also replaced the Unity greeter which I want back... I searched about how to get back the ...
0
votes
1answer
71 views

Some desktop environments don't work anymore after system changes (reusing `/home` in new install)

After some reinstallation/configuration/partition resizing work (I really can't say where the point of failure was, but see below for details), I ended up with unity not working anymore, a situation ...
1
vote
1answer
312 views

Ubuntu 15.10 login loop for all users

On a previously working install of Ubuntu 15.10, I rebooted and am now unable to log in to Unity with any users (main account or guest). I can log into my shell in another tty. I've tried all the ...
0
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0answers
106 views

Ubuntu 14.04 login loop, onboard and update manager does not start as well

.Xsession errors has the following etc/X11/Xsession.d/20desktop-profiles_activateDesktopProfiles: line 31: $ERRFILE: ambiguous redirect Script for ibus started at run_im. Script for auto started at ...
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0answers
34 views

Guest login support in lightdm webkit greeter

I'm having trouble getting the guest login option to work in the Webkit LightDM greeter, which is a shame as it's otherwise a superb tool for developing custom greeters. Looking through the source on ...
1
vote
1answer
80 views

Lightdm fails to login and redirects

After running a routine update and rebooting, my computer running Ubuntu 14.04 is now completely unusable. The lightdm screen comes up and accept my password, but it immediately redirects to itself. ...
0
votes
0answers
56 views

Can I connect to a new wireless connection before login?

I am wondering whether it is possible to connect to a new (not saved) wireless connection before login in as a user. I have some lab PCs and the idea is that the students will use their credentials ...
0
votes
2answers
143 views

Why is my mouse invisible on ubuntu 14.04?

I'm running a clean installation of 64-bit Ubuntu 14.04 with dual monitors. When I start up the mouse is invisible on the login screen and after logging in. Relogging in does not work. I've googled ...
0
votes
1answer
160 views

“Stopping CPU interrupts balancing daemon” after uninstalling LightDM

I'm a rather new Linux user and tried making my virtual server login automatic and while doing so I installed lightdm. I noticed that I got the graphical UI on boot but couldn't log in, so I deleted ...
0
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0answers
75 views

How to change greeter ubuntu

i have installed kubuntu-desktop in my Ubuntu 14.04 and its awesome im liking the new look. i can switch between unity and kde in lightdm unity-greeter screen , but how to replace lightdm with kde ...
1
vote
2answers
401 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 ...
2
votes
0answers
247 views

Must manually restart lightdm to have it appear

I recently did an Ubuntu command-line install on my work laptop, then install Mate (core) and lightdm. I have an Intel graphics driver. When I turn on my computer, it boots to a black screen. Pressing ...
0
votes
0answers
15 views

Set Theme for Session

I'm looking into setting up a OSX theme on Ubuntu 14.04, but I do not want to modify the default Ubuntu session. I found this and this on how to add a custom session to lightDM. But I cold not find ...
0
votes
0answers
144 views

chown: cannot access '/var/lib/lightdm/.gvfs' permission denied

For I can't login to the desktop, I searched for a solution and find a way that reinstall lightdm, so I tried to reinstall lightdm, but returned a message: chown: cannot access ...
0
votes
0answers
11 views

Black screen when open session [duplicate]

I try to open my session on Ubuntu 14.04 LTS. I write my password and press enter, then the screen becomes black and returns to the login screen. When I read the auth.log file, I obtain this: Dec 2 ...
0
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0answers
38 views

LightDM doesn't display topbar and toolbar for user

I had my laptop running some rsync stuff over night. Unfortunatelly, I somehow forgot to plug it. When I started the laptop today every thing seamed fine. It booted, there was the loginscreen and I ...
0
votes
0answers
57 views

lightdm.conf command not echoing to file

# LightDM - light Display Manager # # The display manager service manages the X servers running on the # system, providing login and auto-login services # # based on gdm upstart script description ...
1
vote
1answer
72 views

Wrong permissions of /dev/null (XUbuntu 15.10)

After running update today and rebooting the OS lightdm would not start. After some debugging I noticed that /dev/null (and some other /dev files) do not have adequate permissions (compared to another ...
0
votes
1answer
193 views

samba4 nslcd lightdm and pam_mount

I'm stuck with my setup and hoping for some help. I've setup an AD with Samba4 and nslcd as nss both on the server and the clients. I'm aware that Samba does not recommend running the AD and ...
1
vote
0answers
122 views

Back to the login screen immediately after login

After login the the default gnome desktop, there is nothing but only a background picture. Then after a flash of a black screen, it returns back to the login interface. I changed to tty1 by ...
0
votes
2answers
213 views

How to restart X server? [duplicate]

First of all I should say that I have very limited computer knowledge so go easy on me. I have Ubuntu 15.10 installed on my laptop and I was trying to to install the driver for the Nvidia video card ...
1
vote
1answer
52 views

Disabling Guest account bash script

Hey I'm working on this all purpose script to tighten a ubuntu computers security and one of the things in it is to disable guest account through lightdm.conf. The way my script is setup or at least I ...
1
vote
0answers
1k views

How to configure login screen resolution in Ubuntu 15.10

i'm using ubuntu 15.10 64bit. I have a problem with the login screen. I can't see the login screen because login screen's resolution setting is big for my monitor. My gpu card can't read my monitor's ...
0
votes
0answers
41 views

My Ubuntu Machine 15.04 is very slow at startup. Please help

Following output in dmesg seems suspicious: [ 5.343655] systemd-sysv-generator[197]: Overwriting existing symlink /run/systemd/generator.late/vboxdrv.service with real service [ 13.087620] wmi: ...
0
votes
1answer
52 views

Ubuntu runs in Low Graphics mode after modifying Lightdm.conf

I wanted to disable the guest login in my Ubuntu 14.04, so I opened the lightdm configuration file using: sudo gedit etc/lightdm/lightdm.conf But the file was Empty (There were NO lines like ...
0
votes
0answers
28 views

Change defualt login session ubuntu 14.04.3

I downloaded steam-login (a nother desktop session for steam) but I want ubuntu to automaticly choose steam-login on the login page (after I turn on my pc).I tried editing the lightdm.conf.d and so on ...
0
votes
0answers
63 views

Why is Xnest not listening on 6001

I cant work out why when I run Xnest -ac :1 it does not listen on port 6001. I need this specific scenario so that on other machines I can throw an xterm screen back. I have my configuration so that ...
0
votes
0answers
23 views

Lightdm will not install, whole system broken

I installed Lubuntu the other day and all was great until I exited i3 and the screen was black with a little white line (like a terminal but typing commands didn't work). All that happens now is the ...
0
votes
0answers
193 views

Ubuntu 15.10 Blinking cursor problem after qemu installation

I have been using 64-bit Ubuntu 15.10 along with Windows 10 since it was released. 2 days ago I wanted to install qemu. At the beginning it needed an external library (glib 2.22). I downloaded glib ...
1
vote
0answers
46 views

Limit a user to a single app that starts on login (14.04) [duplicate]

I have a system that I would like to limit a specific user to a single app that will autostart when he logs in. I don't see any way to do this with the toolbar/launcher active but I have seen ...
0
votes
0answers
91 views

Lightdm not working properly in Ubuntu 14.04.3

Recently I installed ubuntu-gnome desktop and then purged the same after trying and I have chosen my default desktop manager as lightdm and there is nothing like gdm as I have purged it also.The ...
0
votes
0answers
49 views

I cannot login to ubuntu14.04. GUI

While attempting to install ubuntu server on VMware and login on terminal; I did not face any issue. but I did not have a GUI interface there... hence, I did the following... installing lightdm ...
2
votes
0answers
30 views

Early adbd on ubuntu touch device

I need to run adbd at early boot stage (before lightdm has started) on Ubuntu touch device (Nexus 10). As far as i know, adbd is launched after login screen password is entered. In upstart scripts i ...
0
votes
0answers
154 views

Lightdm won't start after installing CUDA 7 drivers

I recently installed CUDA 7 on ubuntu using a downloaded .run file. After the installation, I found that not only was lightdm not starting, I also couldn't start lightdm usingsudo start lightdm. ...
2
votes
1answer
2k views

Black screen after 15.10 upgrade, not even getting into tty1 anymore

I'm using Ubuntu 15.04 and upgraded to 15.10 tonight. After restarting I'm getting a black screen with a flickering message from my window manager. First I was able to get into tty1, so I ...
0
votes
0answers
60 views

Starting Light Display Manager after Upgrade

My problem is the same as the one in this and I've tried the fix, but after going into the virtual console, I can't log in. I keep getting "Login incorrect." I've tried fixing any packages through ...
1
vote
0answers
213 views

due to lightdm-gtk-greeter's broken permissions, user wallpaper is not shown

I am on Ubuntu 14.04.03 32 bit platform. The day before while installing udev from source it messed up permissions in my system. I fixed some of the permissions and I managed to login. I noticed that ...
0
votes
0answers
151 views

LightDM doesn't want to start in test mode

I have a problem where LightDM doesn't start when run in test mode lightdm --test-mode. After I ran the same thing in debug, this was the output: [+0.00s] DEBUG: Logging to ...
0
votes
0answers
44 views

I can not login to gnome-cairodock session after manually installed udev (systemd-218)

I am on Ubuntu 14.04.3 32 bit platform. Last night I wanted compile and install an application called qtcam according to this guide https://github.com/econsysqtcam/qtcam/blob/master/INSTALL I thought ...
0
votes
0answers
27 views

Custom XSession script fails

I made a custom Xsession script in ~/.xinitrc using the following tutorial and here is my .xinitrc file : #!/usr/env bash mate-panel & plank & exec gala I have also made a lightDM launcher ...
0
votes
1answer
2k views

LightDM & SDDM fight on greeter screen

I had installed Kubuntu 15.04 sometime ago. I upgraded to 15.10, things were going fine till I added ubuntu-desktop to use Unity DE. When booting with systemd, on startup or login, I get black or ...
0
votes
1answer
48 views

Turn off workspace switch-over display

Using LightDM and wmctrl to set up workspaces and switch between them. How can I deactivate the screen which is very briefly shown when switching between workspaces?
0
votes
0answers
61 views

ubuntu 14.04 ldap client gnome-session hangs

I'm trying to configure ldap client login on ubuntu 14.04. I followed these steps and I can login using tty. Homes are correctly mounted. When I try to login via graphical interface the screen hangs ...