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

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Everything except GUI is black

Since I installed Ubuntu 14.04 on my laptop, I have many problems on it (that I don't have on Debian 8) Indeed, when I switch to TTY with CTRL + ALT + F(1-6), I get a black screen, same problem when ...
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3answers
27 views

Ubuntu 14.04.2 Server - fresh install - Id like a desktop please, no sugar or milk with that either

I am running a freshly installed Ubuntu 14.04.02 Server on my laptop, mainly used for programming etc. I want as light as possible setup without any bloat (hence the server install). I'm not a fan of ...
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21 views

Messed up Lightdm , Help

I was playing with lightdm customization and i think i have completely messed it up. I added a few themes and tried switching themes by editing the webkit conf file and after a restart lightdm won't ...
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0answers
15 views

Logging in to Ubuntu without a Display manager

So I want to login to my system without a display manager(lightDM). How would I go about doing this? or Could removing lightDM break the system? My current WM is i3. so i3 specific instructions would ...
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13 views

Lightdm\Pantheon-greeter conf and packages

I've been reading the other questions and none explains it simple enough. Must I have lightdm installed with pantheon-greeter? Which file am I to use if I wish to use pantheon-greeter? ...
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1answer
26 views

Restoring lightdm conf files after some mods can leave remnants that alter behaviour?

I observed a strange behaviour on my new XUbuntu installation. ==== Background: I had the intention of experimenting two different remote desktop solutions (one at a time); the local computer ...
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1answer
69 views
+50

Apply display settings to all user accounts?

I spent some time getting my settings correct for multiple monitors, and that is working fine when I am logged in, but is not right at the login screen or for other users. How do I set the display ...
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2answers
46 views

Minimal Display Manager sought

After getting a 3G modem for my laptop, I've started using Network Manager to manage my connections, and I quite like it. However, it is slightly annoying to have to be root to make any changes, ...
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60 views

Ubuntu 15.04 boot hangs on “Starting light display manager” after updates

I have recently taken the plunge to Ubuntu, and purchased the Dell XPS 13 Developer Edition. My first order of business was to wipe the "Dellbuntu" that came pre-installed and do a fresh install of ...
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27 views

VPS install xfce and teamviewer

Hi guys I am playing around with some VPS's but I am not getting xfce with teavmviewer to work. I installed xfce with apt-get install xfce4 an installed teamviewer from ther website. Thats the ...
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1answer
38 views

Lightdm won't start after upgrade from 14.10 to 15.04

After upgrading from 14.10 to 15.04, lightdm won't start. Failed to start lightdm.service: Unit lightdm.service failed to load: No such file or directory. I have a HP Spectre x360 with Intel Core ...
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19 views

Xserver problems

using ubuntu 14.04 and want to configure xserver manually. I stopped lightdm and then executed X -configure It created an xorg.conf.new and i just movd it to /etc/X11/xorg.conf (created a new file, ...
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Problem After Upgrading to Ubuntu 15.04 ( deal with any system changes..P link was shut down )

I have laptop Sony VAIO with ubuntu 14.04 i upgrade it to 14.10 then after that i upgrade it to 15.04 .Upon the upgrading complete and the laptop restart ,A blank screen appears and at the end of it ...
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1answer
27 views

Stuck on splash screen, does not progress to login manager

My login manager stopped loading, for no apparent reason, instead tty7 was a black screen I could type into but with no effect. I tried several variations of service lightdm restart service sddm ...
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2answers
42 views

Numpad disables after logging into unity

I just setup Ubuntu 15.04 on my Asus G74Sx laptop. This laptop does not have a physical NumLock key. My Numpad works fine in Windows 8.1, the SSTYs, as well as lightdm (I can enter numbers via the ...
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1answer
31 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.
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4answers
106 views

14.04 unity does not start after login screen

In Ubuntu 14.04, after arriving at the lightdm login screen and entering my password, the screen briefly disappears, but then comes back to the login screen. When going to terminal with ALT-CTR-F1 and ...
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1answer
26 views

Ubuntu lightdm login issue in 12.04

We recently installed Ubuntu 12.04 LTS 64bit Desktop OS on Dell PC. After installing certain packages on it, we restarted the PC. We are unable to login in GUI but able to login via console. You may ...
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1answer
37 views

open fvwm desktop in ubuntu14.04

could somebody explain how to set the unity-greeter select fvwm on ubuntu 14.04? In 12.04 it was easy, you just installed fvwm and it magically showed up as one of the options on the greeter screen. ...
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1answer
57 views

14.04 login loop after cuda installation

I've installed cuda 7 on my 64bit ubuntu 14.04 using this guide. After disabling nouveau drivers following this and rebooting, I needed to disable graphics with Ctrl+Alt+F1, login, and then stop ...
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0answers
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14.04 Trusty Tahr who command output

I have a question that arose in my mind after upgrading to 14.04 TrustyTahr from 12.04 PrecisePangolin. The question pertains to the 'who' command, and its output. On previous editions of Ubuntu the ...
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1answer
31 views

Lock Screen from root shell

I try to set up a script to lock my screen when I unplug my Yubikey. At the moment I am stuck with the correct way to send the command to lightdm. That were my tries: smiddy@3000-N200:~$ sudo su - ...
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2answers
69 views

ubuntu 14.04 login keyboard stuck on english. I want french keyboard

I installed Ubuntu 14.04LTS on a french computer (AZERTY keyboard, see below) but I selected english keyboard while installing Ubuntu. Then change my keyboard parameter like this: and here is my ...
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3answers
30 views

Uninstalling xubuntu-desktop help login

i installed xubuntu-desktop via the code below : Sudo apt-get update && sudo apt-get install xubuntu-desktop But after installing, a few functions did not work such as the system properties ...
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0answers
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How to start a new X windows system in other display in Ubuntu desktop 12.04

As we know, in ubunut desktop, When you power on the system, it will start a Unity Desktop using lightdm in display :0. And you can operate the system in tty7. If I want another Unity Desktop in ...
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3answers
428 views

Cannot Log In to Gnome 3.16 Dekstop

I have installed Gnome 3.16 on my Ubuntu 15.04 (previously updated from 14.04) via: sudo add-apt-repository ppa:gnome3-team/gnome3 sudo add-apt-repository ppa:gnome3-team/gnome3-staging sudo apt-get ...
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1answer
28 views

Remove KDE greeter and install lightdm

So I had installed multiple desktop environments, later removing them, however the greater was still there, in attempt to remove the greeter (KDE), I have actually removed lightdm. So how would I ...
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0answers
31 views

Login Loop on lightdm but not gdm

One of my user accounts is getting a login loop on lightdm but not on gdm. Does anyone know why this might happen and what I may be able to do to log on to the account using the lightdm display ...
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1answer
13 views

Black Screen with Cursor on boot

I've only installed Ubuntu today.. I have booted into it many times but now it's showing up with a Black screen and a cursor. This happened after I tried to change my login screen to the LightDM ...
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1answer
64 views

Blank screen with blinking cursor after running xdiagnose

I have had this problem twice in a row trying to follow these instructions: Solution for low screen resolution in Ubuntu 14.04, Ubuntu I have installed Ubuntu 15.04, and had everything running okay ...
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2answers
54 views

Why has lightdm-remote-session been removed from Ubuntu 15.04?

Straightforward question, really. I must admit I haven't used it much, but just recently had started doing. Now it's not in the repositories. What's the thinking behind that?
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2answers
86 views

How to start Pantheon from the command line

Long story as to why I've chosen to go this route, but I've installed Ubuntu Trusty without a desktop, and then installed pantheon, pantheon-shell, pantheon-greeter and elementary-desktop packages. ...
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2answers
162 views

How can i set different wallpapers for Ubuntu 15.04 login and Desktop

This has been bothering me very much. i have memory that Ubuntu 12.04 had this configuration? am i wrong? finally, is it possible for the login screen to have different wallpaper from the desktop? is ...
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62 views

Shutdown just logging out

I have an older hp pavilion all in one pc and after upgrading to 15.04 whenever I tell the computer to shutdown while in unity (haven't tried other DEs) it goes to the login screen as if I'd only ...
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0answers
5 views

Ubuntu 12.04 freezes and does not always let me switch to text-based to restart lightdm

I switched to an old laptop after my two main ones stopped working and this one frequently freezes. At times it will allow me to switch to text-based (CTRL+ALT+F1) and restart lightdm (which is ...
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0answers
13 views

Xorg and issues

Today I've tried to install the SixAxis controller using the official wiki page. It succeeded until I removed the harddrive and this happened ...
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2answers
376 views

“Starting version 219” after kernel upgrade to 3.19.0-18

Today after kernel upgrade from 3.19.0-16 to 3.19.0-18 lightdm fails to start. GPU driver is fglrx installed from "Additional drivers" tab of "Software & updates". Try to enable service by ...
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26 views

How can I remove a specific user from the Ubuntu login screen? [duplicate]

I am using Ubuntu 14.04LTS. When I login, there is an extra user called 'Oracle' present. How can I hide this?
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2answers
75 views

Can't get rid of Lubuntu's Login Greeter

If I lock my computer or logout, when I log back in, I want to see unity-greeter. But I can't seem to get rid of Lubuntu's greeter upon logging in. I once installed Lubuntu but have since uninstalled ...
2
votes
1answer
60 views

How to edit (CSS) LightDM GTK+ Greeter

Is there a manual or does anyone know how to edit the (CSS) files for the LightDM GTK+ Greeter? I'm already using LightDM Greeter Settings, but I want more customization. Somehow the webkit greeter ...
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0answers
35 views

Graphics changed after relogin on Ubuntu 15.04

So, a little background. While trying to fix the issue with chrome and other video player freezing when waking up from suspend, I think I accidentally changed some settings. And from my history I'm ...
4
votes
1answer
165 views

How to start lightdm services at startup

My system is running Ubuntu 15.04 and I've changed default boot to "text" instead of "quiet splash" by going through answer by @Bruno Pereira How do I disable X at boot time so that the system boots ...
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1answer
53 views

FS mounted as RO on boot after upgrade to 15.04

Just upgraded from 14.10 to 15.04. Couldn't get the system to boot ok. I could boot using (upstart) option - not using default systemd. When in default mode the lightdm terminal was stuck before login ...
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1answer
61 views

lightdm black screen after installing plasma5 in Ubuntu

I have both ubuntu-desktop and kubuntu-destop installed on my laptop. While sddm works perfectly fine during login, if I choose lightdm as the default login screen, after a reboot, I get a black ...
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1answer
56 views

Problem to stop lightdm

I'm trying to stop LightDM, but I receive the following error message (translated from German): root@robert-desktop:/home/robert/Downloads# stop lightdm stop: Connection to Upstart not possible: ...
0
votes
1answer
33 views

Black screen after uninstalling lightdm

i use 14.04 and have uninstalled Lighdm, because it runned jackd uppon starting the computer. Now when i start it goes into a black terminal, and i have no access anymore to the normal GUI display. ...
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0answers
8 views

LightDM 14.10: Desktop showing but status bar and quick launch bar not showing [duplicate]

When I boot into my main account the status bar and the quick launch bar are not showing (the desktop with the icons work correctly though). When I boot with the guest account everything works as ...
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0answers
26 views

Unity keep changing windows manager/template i don't relly now [screenshots]

After ugrading from lts 14.04 to last release 15, Unity keeps constansly changing windows manager or gtk theme don't really know which, also, gnome 3 doesn't work, i also had mate and xfce installed, ...
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0answers
19 views

Boot in text mode break X

this is my first question and i hope not be breaking any rules. I was trying to boot at text mode and followed these articles How do I boot into true text mode? Disable automatic unity launching? ...
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0answers
51 views

Crossfire Resets When Lightdm Restarts Ubuntu 15.04

So I had Crossfire running on 14.04, but I decided to update to 15.04 and now it's acting strange. I've gone through the typical steps of commenting out everything in /etc/init/gpu-manager.conf, and ...