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

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8 views

Smart lock like on Android?

Is it possible to configure either LightDM or GDM to automatically log in when my laptop is connected to a certain WiFi? Or even better, to check my location regardless of what WiFi I use?
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12 views

Themes & Icons not loading after logging in quickly

So this is a funny one, I guess. What am I running? Ubuntu 15.04 / Kernel 3.19 On what am I running? ASUS Zenbook ux303ln As the title says, the theme and icon style, specified in the unity tweak ...
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0answers
16 views

Problem on boot: Starting Version 219

After installing Ubuntu 15.04 when I start the system appears the message, which carries with it takes longer to boot. If anyone can help would be grateful. complement: Already tested the command: ...
0
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1answer
29 views

LXDM and Ubuntu 15.04

Currently, the lightdm is burning up too much CPU resource on my computer and from the searches I've done, it's a heavy display manager. Example, just having wunderlist web page open in firefox, the ...
2
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0answers
30 views

Unknown xubuntu screen locker / password

I have a regular ubuntu installation which I then installed xubuntu desktop over. I am occasionally confounded though by an unknown "screen locker" that occasionally appears instead of my normal ...
1
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0answers
25 views

Login loop on ubuntu 14.04. Other user can log in. Checked Xauthority, and ~/.profile.

When logging in to ubuntu 14.04 I am encountering a login loop on my main account. Upon entering my password, the login box disappears to leave the wallpaper displaying alone. Then after maybe 1-2 ...
0
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0answers
13 views

How can I set up Ubuntu to execute a command as root when a user without root privileger logs in? [duplicate]

I currently have Ubuntu (15.04) set up to boot to tty, and want to make it so that sudo service lightdm start is executed whenever a specific user (without root privileges) logs in. Is there a way to ...
1
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0answers
21 views

After installing QtCreator, lightdm not turn on xubuntu 14.02

I just simply wrote sudo apt-get install qtcreator in terminal and saw how he removing xserver and some graphical packages in installation process. At the end, he install them again, but after reboot, ...
2
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1answer
31 views

How to change the Desktop Manager

When I installed KDE Plasma in Ubuntu 15.04, I set the LightDM as the default manager, But I want to set KDM as the default, how can I change this?
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34 views

The system is running in low-graphics mode?

First off, I've searched and tried every method I could find the last ~6 hours. Nvidia 750 TI graphics card. Running in VMWare. The system ran fine for a few days and out of nowhere I received a ...
1
vote
1answer
28 views

Laptop does not like external monitor

Recently, I installed Ubuntu 15.04 on my machine and got everything running about as it should, except for one thing: my external monitor can not be set as default. Every time I plug in my external ...
0
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0answers
42 views

Minimal Gnome install on Ubuntu Mini

I am trying to get a very minimal Gnome installation on 64bit Ubuntu mini. I don't want the bloatware of a regular install of Gnome. I tried this: sudo apt-get install lightdm gnome-terminal synaptic, ...
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0answers
14 views

Window manager (?) or anything similar is broken [duplicate]

When I booted today, I had a normal login screen but as soon as I logged into my account (admin), the mess began. My system: Ubuntu 15.04 with Unity, kernel 3.19.0-22 My symptoms: No panel No ...
0
votes
1answer
68 views

Ubuntu 14.04.2 login screen loop back

I have a login screen loop back problem, when I punch my password I get back to the login screen again. I have tried to login with LightDM CI screen by Ctrl+Alt+F3 but there when i put in the username ...
1
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1answer
66 views

How to configure ubuntu 14.04 to run Icewm as default desktop display Manager

How to configure ubuntu 14.04 to run Icewm as default desktop display Manager. which files to Configure to do this
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0answers
12 views

lightdm-webkit-greeter issue

I am using Gnome Ubuntu 14.04 LTS. I used this command; sudo apt-get install lightdm lightdm-webkit-greeter xserver-xephyr I install LightDM and LightDM-webkit-greeter and bevel (lightdm theme), I ...
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votes
1answer
50 views

Gdm with nvidia-331 and nvidia-prime causes a black screen at boot

I'm on an Asus UX51vz laptop, which has RAID0 SSD's and an nvidia 650M graphics card. I installed lubuntu instead of ubuntu-gnome because lubuntu still has a RAID0 compatible alternate install ISO. ...
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0answers
19 views

side effect between isc-dhcp-client, network speed and lightdm

I have 300 computers on running on 14.04 64bits Ubuntu, i use isc-dhcp-client to get ip and name from my dhcp server. I encounter the classic problem with lightdm "your system is running in ...
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votes
1answer
112 views

Install nvidia geforce gt 845m driver on ubuntu 14.04.02 lts

I am trying to install the driver on my asus n551jq, under ubuntu 14.04.02 lts. My steps are: sudo add-apt-repository ppa:xorg-edgers/ppa sudo apt-get update sudo apt-get install nvidia-337 ...
0
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0answers
83 views

how to change ubuntu 15.04 lightdm greeter wallpaper size?

i was wondering if i can change the size of the background i have selected in lightdm.conf after installing lightdm-gtk-greeter sudo apt-get install lightdm-gtk-greeter then editing the ...
0
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0answers
17 views

Can't auto-login with Lubuntu

I have tried to make autologin work with Lubuntu but for some reason the thing is not working. Just to be cautious I used both procedures described here (for LXDM and LightDM), but neither work. I am ...
1
vote
2answers
48 views

Drop to a console after boot, and then start the GUI when required

I am running Ubuntu 14.04 with Gnome as the Desktop Environment. When I boot, I want it to be quick, and drop into a shell. I'll enter my username and password, and if I require, I will start the ...
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2answers
39 views

lightdm doesn't show up

whenever I reboot the lightdm display the mouse cursor but it doesn't show the login form. However if I type my password I login into my account. This hapens since I've moved to kubuntu 15.04 (upgrade ...
0
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1answer
32 views

Stuck at loading screen after removing LightDM

I removed unity and installed cinnamon on my Ubuntu 14.04 LTS, everything was working fine. I recently removed LightDM in favour to the lock screen of cinnamon using this method How to uninstall ...
0
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0answers
27 views

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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0answers
28 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
22 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 ...
0
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0answers
42 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? ...
0
votes
1answer
35 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 ...
5
votes
3answers
161 views

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 ...
1
vote
2answers
59 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, ...
3
votes
0answers
343 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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0answers
63 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 ...
0
votes
1answer
92 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 ...
0
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0answers
21 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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0answers
295 views

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 ...
2
votes
1answer
52 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 ...
0
votes
2answers
50 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 ...
3
votes
1answer
76 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.
2
votes
4answers
132 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 ...
0
votes
1answer
27 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 ...
0
votes
1answer
60 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. ...
0
votes
1answer
87 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
37 views

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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vote
1answer
44 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 - ...
0
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2answers
77 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 ...
2
votes
3answers
34 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 ...
0
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0answers
23 views

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 ...
0
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3answers
627 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
36 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 ...