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

learn more… | top users | synonyms

1
vote
0answers
110 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
197 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
49 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 ...
0
votes
0answers
840 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
40 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
49 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
26 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
54 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
22 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
185 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
90 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
29 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
141 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
2answers
1k 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
59 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
194 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
124 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
42 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
23 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
45 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
57 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 ...
0
votes
0answers
261 views

Unbind GPU from Radeon drivers without restarting lightdm

I use a bash script to rebind my GPU for KVM PCI passthrough, but it requires me to stop lightdm to unbind/bind it from the radeon drivers. If I do not stop lightdm, the entire system hangs after a ...
1
vote
0answers
43 views

set gamma when lightdm starts

I want to set the following when booting lightdm: xrandr --output eDP1 --gamma 0.8:0.8:0.65. I have tried: Creating a startup application (works, but only after loggin in. setting ...
0
votes
3answers
88 views

Changing my desktop enviroment to Gnome 3 [duplicate]

I recently installed Ubuntu 14.04 on my computer and now I want to change my desktop environment to Gnome 3. I have seen many methods to install Gnome 3 but now I am confused which method should I ...
0
votes
0answers
34 views

Ubuntu 14.04 sidebar gone and so is console (attempted all previous methods)

Okay before you vote me down i must start by saying that ALL methods found on ask ubuntu did not work for me. Right now im logged in as guest where everything works just fine. However sadly my main ...
0
votes
1answer
258 views

lightdm won't start after bumblebee install

On an Asus rog with GT960M graphic card running Lubuntu 15.10, I installed bumblebee (https://wiki.ubuntu.com/Bumblebee) which rebooted fine. Then I updated the nvidia driver by sudo apt-get ...
0
votes
0answers
33 views

Autologin not working, associated with fonts folder

Ubuntu 14.04.3, autologin worked fine. But I created some font collections (~500 fonts) by font-manager (from ppa:font-manager/staging). Font-manager copy all added fonts to ~/.local/share/fonts/. And ...
0
votes
0answers
40 views

How can I use LXC to create a working copy of the Ubuntu Development Branch on my system?

What I mean is that the unity8-lxc package allows one to log into a working Unity Next distribution (rather than the unity8 package from Trusty) from LightDM. Is there a way of using LXC to do this ...
3
votes
0answers
166 views

A few problems after upgrading to 15.10 [closed]

First off, let me say, I don't believe this to be a duplicate as I've tried everything I can find. Last week, I started the upgrade process to Ubuntu 15.10 from 14.04. I did the upgrade to 15.04, ...
0
votes
0answers
91 views

Ubuntu is terribly slow at logging in and initializing the greeter

I installed ubuntu and it takes a long time until I'm able to type my password; the login-screen/greeter takes a high amount of time to let me type in something. The thing I see before is the greeter ...
0
votes
0answers
235 views

Boot loop when installing 14.04 under Hyper-V (Windows 10)

Similar to issues described here: Ubuntu gets stuck in a login loop and here: Ubuntu 32bit on Hyper-V Keeps Asking Me Password I am getting into a boot loop when trying to run Ubuntu 14.04.3 (fresh ...
1
vote
3answers
1k 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 ...
1
vote
0answers
40 views

Login loop revisited

I'm using 14.04 LTS Desktop on a Lenovo laptop and it's been working great until this morning. After a reboot I encountered the login loop, where you log in and immediately return to the login screen. ...
0
votes
0answers
673 views

Select xfce4 desktop environment with autologin in Ubuntu 14.04.03 LTS

I am trying to select xfce desktop environment upon boot up with autologin enabled. I created a config file in /etc/lightdm/lightdm.conf.d/50-myconfig.conf with the settings as below: [SeatDefaults] ...
4
votes
2answers
110 views

Documentation for theming of unity-greeter

There are a lot of great gtk-themes out there for unity/gtk. However very few of them do have support for the unity-greeter. I want to work on them however I were not able to find an (official) ...
1
vote
1answer
6k views

Ubuntu 15.10 boot hangs when starting Lightdm

I failed to read the release notes before upgrading to 15.10, I still had fglrx drivers installed. When rebooting after the upgrade it would hang indefinitely in the splash screen, I couldn't open a ...
0
votes
0answers
127 views

Kubuntu 15.10 stuck on boot logo

Since today Kubuntu 15.10 won't boot automatically any more. When I enter tty1, I get to the root console and can start the Plasma desktop manually by entering "startx".
0
votes
2answers
2k views

Ubuntu hangs on Starting light display manager on bootup

I've been going at this for about 10 hours, and I can't find a solution to this problem. I recently updated to 15.10, and now when I boot up, It gets stuck on "Starting light display manager" part ...
0
votes
0answers
30 views

Login loop with new install of 14.04.03 (twice) on Acer Inspire 5742ZG with AMD Radeon HD6370M graphics

Enter correct password, takes it, screen goes blank then the console messages appear : Starting LightDM display manager Stopping Send an event to display plymouth is up Then it goes back to the ...
0
votes
1answer
82 views

Lightdm broke, have to manual login via bash

I had a problem with Lightdm, each time I put my pc to sleep and wake up, it showed up no user, but asked for password and none worked. And I don't know if it's dumb, but I also ran locate lightdm | ...
1
vote
0answers
28 views

How do I completely uninstall default Unity Greeter and use text mode login instead? [duplicate]

If I would like to completely uninstall the default Unity Greeter and use text mode login instead, how should I go about it? I am using Ubuntu 14.04 LTS - the regular flavor; with Unity. I prefer a ...
0
votes
0answers
2k views

Starting Light Display Manager hanging

I just installed Ubuntu 15.10 on a pretty old laptop. Everything went well, installed proprietary amd drivers and did my first reboot. Aaaand ... it's stuck. Here is a picture of what I get at ...
1
vote
0answers
60 views

Ubuntu 14.04 Trying to Set Login Screen and Gsettings Fails with Error

Following instructions in other posts that involve dconf-editor or using su lightdm -s /bin/bash, I hit a big hurdle with the following error: olefoxx@Don-L355n2:~$ sudo -i [sudo] password for ...
0
votes
1answer
85 views

trying to figure out what happened with lightdm and Xorg

thank you for trying to help me with this issue! :) So I installed bumblebee and then my screen got a low resolution after my pc crashed (not related, cat pulled electric cable ;) ). To fix this issue ...
1
vote
1answer
661 views

No login screen after upgrade to 15.10

The system is up and running, I can login with Ctrl-Alt-F1 or ssh -X from another computer. I can run graphical applications over ssh. The problem is that the login screen is gone. It's just a black ...
2
votes
1answer
8k views

gdm not working with Ubuntu 15.10

I just upgraded to 15.10, and everything went smoothly. One of the first things I did was install gnome-shell, and switch from lightdm to gdm. However, when I restarted, after an initial purple Ubuntu ...
0
votes
0answers
172 views

After Nvidia driver installation System Running on Low-Graphics

After I have installed the NVIDIA Driver I am unable to login to the Ubuntu 15.10. When I log in I get the error SYstem Running on Low Graphics Mode and from there I am unable to reconfigure the ...