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

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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 ...
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148 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 ...
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27 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 ...
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23 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 ...
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121 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, ...
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64 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 ...
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141 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 ...
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3answers
592 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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33 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. ...
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236 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] ...
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2answers
81 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) ...
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1answer
3k 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 ...
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105 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".
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1answer
859 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 ...
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26 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 ...
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1answer
67 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 | ...
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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 ...
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806 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 ...
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1answer
44 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 ...
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1answer
63 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 ...
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1answer
450 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 ...
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1answer
4k 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 ...
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142 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 ...
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1answer
535 views

lightdm - Job failed to start (xorg problem?!) / bumblebee/cuda related?

Please work through my wall of text, need help!! Thank you! Booting up my laptop this morning, I encountered the following problem: Boot to black screen with no responsiveness, couldn't even get to ...
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21 views

Desktop logins are broken on 15.04

My system has been running fine for several weeks with 15.4; I turned it on last week and saw a yellow message scroll past too fast to read and I cann't login to the desktop anymore. There is no ...
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26 views

pam_mount, pam_ldap and screen unlocking

I am having trouble getting these three components to work in an ldap environment: authenticate the ldap user mount a folder (type cifs) on login using pam_mount be able to unlock the screen once it ...
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1answer
33 views

how to kill a lightdm window without losing the session?

My laptop was locked (showing lightdm unlock screen), and the battery went off overnight. When I charged it up again there is the lightdm or gnome window asking me the session-end question "user, you ...
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1answer
79 views

Install ligthdm after autoremove lightdm

I think I did a big mistake and autoremove through sudo apt-get autoremove lightdm instead of remove lightdm. So in my little knowledge about Linux I think I removed more than lightdm. I ...
2
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1answer
87 views

another login loop problem

Since last week I'm also faced with the endless-loop problem using ubuntu 14.04.3 (installed in dual-boot on HP 840 EliteBook). Upon login the screen turns black and returns to the login interface.I ...
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43 views

Starting Version 219 after ati proprietary driver install 3.19.0-30

I have seen the other help items regarding the "Version 219" errors. Here is my issue: 1. Install ATI Proprietary drivers (because everything else I tried to do to speed up Unity and system response ...
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51 views

lightdm stop fails after software update

The recent update for Ubuntu 14.04 broke my manually installed Cuda driver. To reinstall, I dropped to a terminal with the intention of reinstalling via: ./cuda_7.5.18_linux.run --no-opengl-libs In ...
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1answer
18 views

Building custom live Ubuntu Gnome 3.12.2 based, only for GDM: authentication failure

I'm building a custom live Ubuntu Gnome 3.12.2 based, Only if I create a new user, set password and add him to sudo group, setting by dpkg-reconfigure GDM ad default greeter, obtain a black screen ...
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26 views

Cannot log in to GNOME with XMonad sessions

I'm running ubuntu 14.04.3LTS. I recently installed xmonad via apt. When I log in, I have three options: GNOME with Xmonad Ubuntu (Default) Xmonad Ubuntu works fine, as does Xmonad. However, when ...
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1answer
27 views

Using ONLY Pamusb as authentication

Is it possible to only use pamusb to login (into xfce/lightdm) and not have a password at all? When I try to change pamusb to required in /etc/pam.d/common-auth and comment out the password thingie I ...
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1answer
378 views

I can't install Pantheon Greeter in Ubuntu 14.04

I want to install pantheon Greeter from Elementary OS in Ubuntu 14.04. When I follow every tutorial on the web I get it in the Terminal: Some packages could not be installed. This may mean that you ...
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1answer
25 views

GDM fails to launch xfwm4, but lightdm succeeds?

I use GDM and usually run an XFCE4 session. Suddenyl, if I attempt to boot in using GDM, the following symptoms appear> 1) the GDM background does not go away 2) windows from two applications (remains ...
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1answer
149 views

Lightdm Login Loop - Ubuntu 15.04

Recently, my Nvidia video card failed (Hardware Failure) on me. I uninstalled the drivers and updated mesa-utils (after proper Nvidia cleanup) , added linux-generic and tried to login. No matter what ...
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149 views

Synergy + LightDM = no autostart?

I've installed Synergy v1.3.8 on my Ubuntu machine at work (latest one in repo although I know that the latest stable is 1.7.4). I have read the instrunctions on how to make this thing auto-start ...
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2answers
162 views

Desktop froze, rebooted, now login loop

First firefox froze, so I started System processes and ended firefox. Then it happened again but when I ended firefox in System processes the whole desktop froze. So I pressed the restart button on ...
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0answers
35 views

Thinkpad W540 internal input devices not detected in Ubuntu 15.04

The touchpad, trackpoint, and keyboard aren't detected after boot. I know that the keyboard still works because I can use it to navigate the BIOS. Looking at my X server's log, I can see that my ...
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0answers
34 views

Ubuntu Guest Session Works, Regular Session Not (LightDM Relog / GDM Black)

I tried all sorts of stuff posted on forums and nothing works e.g. removing fglrx or reinstalling ubuntu-session and other packages. All done to no avail => I log into regular user "mashup", get ...
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1answer
123 views

xsession-errors

when I logged in to my desktop and listed the contents of the .xsession-errors file in my home directory, the following is found . kindly let me know what to do to correct the errors mktemp: failed ...
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2answers
402 views

Ubuntu 15.04 Hangs on “Starting Light Display Manager”

I was using my computer earlier today and after having problems with Steam, I rebooted my computer to have it hang on "Starting Light Display Manager". I believe I have seen every relevant question, ...
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0answers
90 views

Unity GUI won't start, compiz crash?

I upgraded and rebooted today and now I can't get Unity / X Window to start. I used to have it auto log-in since I was using the computer for kodi (xbmc). Now I get a purple screen with dots, which ...
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0answers
289 views

Changing default resolution system-wide in Ubuntu 15.10

Ubuntu 15.10 uses the native resolution of the screen by default. The native resolution on my laptop (3200*1800) is too big for the size of the screen (13"), leading to a very high pixel density, it ...
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1answer
219 views

CUDA install causing login loop

I have configured & installed CUDA twice already, both from completely fresh installs of 14.04.3 LTS (worth noting the machine dual-boots Windows 10 [separate drives though]). Both times, after a ...
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0answers
31 views

Installed Nvidia driver, can't get back to unity

so i updated my video driver on my pc with the latest from the nvida website. I disabled the lightdm service and went to init 3. but after the install I cant get back to the unity desktop. it loads ...
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0answers
22 views

Login screen doesn't hold

My login screen appears for 2 seconds only, falling back to a black screen with the booting "verbose" text. I can still log in by simply typing my password and pressing enter. This issue only ...
3
votes
1answer
384 views

Can't start LightDM after recent kernel update

Whenever I boot, it show Plymouth then goes to a screen full of boot log, I -think- the only relevant part is Starting Wait for Plymouth Boot Screen to Quit...es.ileged Tasks.s..p link was shut ...
2
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1answer
55 views

No password required for user login [duplicate]

I am running Ubuntu 15.04, but I have had the problem since 14.04. When i start the computer, the login screen shows up but i don't need to enter my password to login. I also cannot lock the computer, ...