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

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Unrecognized keyboard layout after login

Two of my computers running Ubuntu randomly ignore the configured keyboard layout and fall back to qwerty. On one computer the configured layout is "Français" (French), on the other it is a bépo ...
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1answer
171 views

Problem with LightDm on Ubuntu 14.04 server

I have a fresh install of Ubuntu 14.04 server and installed lightDM (apt-get install lightdm) , started lightdm (start lightdm) a login screen appears with an error "Failed to start session" as ...
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495 views

snd_hda_intel fails to load and black screen after delay

two days ago I modprobe -r snd_hda_intel and modprobe it back. Today I got a black screen after a certain delay when loading lightdm. Here's the message in dmesg: [...] [ 47.313515] snd_hda_intel ...
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0answers
118 views

Higher Resolution Xrandr 1400x1050 Legacy GPU

Dear Ubuntu Community, recently I (re)found my 10 year old Sony Vaio laptop, a PCG-GRT916V to be exact. I immediately had the idea to put this old laptop to good use. Over the course of two weeks I ...
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1answer
231 views

lightdm-gtk-greeter keeps loping into login screen

Since I had problems with unity-greeter I had installed lightdm-gtk-greeter and it keeps looping into the login screen. 14.04 ubuntu I have several solutions: removing .Xauthority file, reinstalling ...
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0answers
25 views

Is it possible to display a splash screen when you disable the GUI

On my system I have removed lightdm. When the system starts it attempts to load up tty7 but since it does not have lightdm it is unable to boot up the GUI. So tty7 is the initially loaded which ...
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0answers
104 views

lightdm-gtk-greeter session loading fails

I have installed lightdm-gtk-greeter. This worked fine for a while. When I tried to shift to unity-greeter (which I could not) and so reverting back to gtk-greeter it presents the login screen, where ...
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0answers
68 views

Lightdm greeters?Where can I find some?

Is there a place where I could find a list of lightdm greeters and where I could download them? I would very much like to see some custom made greeters so I can fully customise my Ubuntu :) I know ...
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1answer
2k views

The system is running in low-graphics mode in Ubuntu 14.04 and /etc/lightdm/lightdm.conf missing

I always see the low-graphics mode error and have tried several solutions (links below) but in vain. [intel graphics, Ubuntu 14.04 running on a dual boot with windows7] How to fix "The system is ...
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1answer
111 views

Unity Greeter starts with a black output Screen

The unity greeter in my Ubuntu 14.04 laptop starts with a black output screen. When I say this I mean every error and output of the greeter is printed on the screen but the GUI is not visible. What I ...
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24 views

X server boots on unconnected screens rather than on internal laptop screen

I usually use my laptop with 2 external monitors (Lenovo T520 with docking station supporting 2 DVI outputs) which generally works fine. I always keep my internal screen turned off. Unfortunately ...
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19 views

Display is broken after login [duplicate]

I have big problem with settings $DISPLAY and xorg. After login to my account screen is black for few seconds and back to login page again. It is only for one account on my computer and I think I need ...
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2answers
458 views

Problems loging in gnome-session after upgrade to 14.04

I just upgraded from ubuntu 12.02 LTS to 14.04 LTS. After a miriad of problems which i was able to solve one by one, the upgrade was successful. It was however impossible to log in the default gnome ...
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1answer
438 views

Where is “session sufficient pam_lsass.so” and the “/usr/share/lightdm/lightdm.conf.d/50-unity-greeter.conf”

I am new in Ubuntu, Ubuntu Server 14.04 LTS. I am setting up a Samba File Server and join it to our domain. I configured some of the configuration, but in the step 6 of this guide, I was unable to ...
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173 views

Auto-detect new monitors/TVs and resize screen resolution in Ubuntu 14.04 Server

I have an Ubuntu Server 14.04 LTS installed on Zotac ZBOX CI320 Nano which has two video sockets: HDMI and Display Port. The PC hosts my website, download torrents, runs XBMC media center software ...
2
votes
1answer
525 views

How can I make lightdm scale on a hidpi screen?

I have a laptop with a 3200x1800 screen. When I start up my laptop, lightdm doesn't scale to the resolution and looks tiny. When I lock the screen afterwards, lightdm scales and looks fine. I found ...
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0answers
21 views

exlude users from display manager [duplicate]

I just did a fresh installation of Ubuntu 14.04. To not break anything, I created the default user during install, but I neither need nor want it. I added my usual users (UIDs > 10000), which work ...
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1answer
3k views

How to set GNOME as my default desktop environment?

I just downloaded GNOME-Shell. And at login screen it's give me to choose to set desktop environment, But I want to set GNOME as my default desktop environment. Although I tried the possible ...
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0answers
123 views

Ubuntu 14.04 Guest Account - Disable CTRL ALT DEL

I'm setting up a Ubuntu Linux install as a base for VMWare View. I have it set to auto login using the guest account. The guest account is perfect for this because when the machine restarts it ...
2
votes
1answer
126 views

Remove LDAP users from Lightdm greeter user list

I have default user accounts which are local to my system and I want to show them in a user selection list. This is working. Recently, I've enabled logins with LDAP. The flow is selecting "Other..." ...
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2answers
1k views

How to fix Ubuntu 14.04 LTS login screen hangs with “logging in…”

Anyone have suggestions for this: I upgraded my Ubuntu system to 14.04, and the upgrade failed miserably. I was forced to restart the system in order to get to a login. After following several ...
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1answer
53 views

Can't Login using GUI [closed]

I can't login to my standard or guest session using the Ubuntu GUI.I think its a problem of the greeter because I can login to my standard account in console mode.However there is no problem in login ...
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1answer
200 views

Error while login in Ubuntu using Fingerprint GUI

When I am trying to login in Ubuntu using Fingerprint GUI I receive the following error : ERROR: FOUND ENCRYPTED HOMEDIR BUT NO PASSWORD I have installed my fingerprint for both sudo and su ...
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57 views

Freezing, Errors and Display Manager PRoblems

I'm running ubuntu 14.04 I think thats the version, I recently had problems with what I'm thinking is the display managers. first my laptop(with ubuntu on it) was having problems with freezing, it ...
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1answer
432 views

UBUNTU 14.04 LTS Date and time is not displaying in the menu bar after login

At the time of login, it displaying date and time in menu bar, once I logged in It disapears from the menu bar. I have tried these mentioned below: First approach: sudo apt-get install ...
2
votes
1answer
308 views

Meaning of files under /etc/lightdm/lightdm.conf.d/?

I installed Xubuntu from an .iso image. Then I installed ubuntu-desktop package from the repositories and removed xubuntu. However, the only file under /etc/lightdm/lightdm.conf.d is 10-xubuntu.conf. ...
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79 views

Disable unity-greeter dynamic switching (12.04)

Ubuntu 12.04 Unity greeter has introduced selected user dynamic background, that means that when selecting a user from the available users list the background will change to reflect the selected ...
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0answers
42 views

why can't i resume after using lock/hibernate mode?

First of all, hibernate has been very iffy for me. And then when I open my computer back up it goes to the Light Display Manager login. I usually can "Ctrl-Alt-F7" to get to the regular login, but ...
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2answers
101 views

Disable touchpad at login screen

EDIT (revision 4) According to this ubuntuforums.org post, upstart cookbook and CameronNemo's answer, I tried to change the first line with start on login-session-start and I moved the conf file ...
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2answers
124 views

lock screen has turned to an old design

It's been two weeks since I installed Ubuntu 14.04 and today I found out my lock screen has turned to a very old design. like this image: I am new to Linux and I tried to fix the problem but I got ...
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0answers
175 views

Screen flicker, ubuntu 14.04 freeze when changing resolution/display settings

If I login into Ubuntu 14.04 (not with 12.04), and I try to change either the resolution or plug into an external monitor via the HDMI port, everything freezes and: either everything goes dark/black, ...
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93 views

Ubuntu wont boot, stuck at logo screen

I recently removed my win7 and installed ubuntu 14.04. Everything was fine until i tried to install newer nvidia drivers. I followed the guide, and it said to stop light, so i typed it in the ...
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0answers
203 views

no GUI after installing amd catalyst driver

I'm running a DELL inspiron 3537 with 64 Ubuntu 14.04. After asking around I've decided to install the drivers for the computer. Here's what I did: install the intel driver from here reboot ...
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2answers
71 views

Screwed up lightdm file and am now in login loop

Upgraded from 12.04 to 14.04...upgrade worked but ran into permission problems mounting usb stick and launching applications. Attempting to fix this I edited and saved lightdm....am now stuck in login ...
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1answer
146 views

Missing Login screen (kdm missing? plasma5) [closed]

I installed plasma5 on 14.10 and had bunch of problems. I was in a hurry to fix, so removed/reinstalled blah blah blah bunch of packages, including probably lightdm and kdm. Now I want Plasma5 back, ...
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1answer
153 views

LightDM won't start after Grub - Cannot Access TTY unless closing and re-opening lid

I am running Ubuntu 14.04 on an hp envy 17 3D. New installation + ATI Drivers I would appreciate some help troubleshooting what I think is a LightDM issue which I have not been able to solve. When I ...
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1answer
271 views

Kubuntu 14.04 login fails after lightdm/ xdm/ lightdm swap [duplicate]

I am running kubuntu 14.04. Recently as part of a python development project changed the DM to xdm. Since then I have not been able to get the system to let me back past the login page. To be ...
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0answers
65 views

Why Light locker unmounts encfs mount points when screen is unlocked

... and how to prevent this behaviour or work around that? I have the following mount point: encfs on /home/me/Private type fuse.encfs (rw,nosuid,nodev,default_permissions,user=me) I lock the screen ...
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131 views

screen doesn't load after login ubuntu 14.04

when I try to login at first it seems normal but then it crash and the screen is black. I tried to restart lightdm but it shows thi error Failed to use bus name org.freedesktop.DisplayManager, ...
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0answers
31 views

Unity / Grub Problem

When Ubuntu 12.04 load, it does not show graphical interface, only a cursor. And then goes to tty1. When I go to Ctrl+Alt+F8 I can see some text infos (starting apache2..etc). I tried: restart ...
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0answers
106 views

How can I install Unity 8 and lightdm on Ubuntu Server?

I would like to use the new Unity 8 which uses Mir without having to install Xorg. If it's possible, I'd like to use LightDM as my display manager. I first tried installing the ...
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1answer
797 views

How can I change the KDE lockscreen?

I want gdm, lightdm, something--anything--other than the default one in KDE. I'm not talking about the login manager or anything, that I have set to gdm. I'm talking about the lock screen with the ...
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1answer
1k views

Ubuntu 14.04 hangs on boot after starting CUPS

As I was trying to install an alternative keyboard layout I ended up deleting my /usr/share/X11/xkb/* folders. I tried to reinstall them with apt-get remove xkb-data && apt-get install ...
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2answers
208 views

Change screen resolution in login screen and text console

I know I can change the screen resolution for: Desktop (I know I can change it using Settings > Display or xrandr) Grub (I know I can change it in /etc/default/grub GRUB_GFXLOAD variable) But, how ...
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0answers
145 views

How do I get lightdm on suspend from awesome/gnome session?

I am using awesomewm as my windows manager on ubuntu 14.04 and use the gnome settings daemons for power, wifi, etc. When I close the lid, my computer suspends. When I open it back up, it does not ...
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0answers
153 views

No log in screen in ubuntu 14.04

I am using ubuntu 14.04 64bit (up to date). I have installed kubuntu-desktop and used for 1 day without any problem. On next day found that kde restart randomly and log out automatically. So I remove ...
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0answers
74 views

Cannot Login and Connect Internet Via Proxy after upgrade from 12.04.05 to 14.04.01

I got two problems after upgrade from 12.04 to 14.01, Cannot connect internet via proxy although I set it in /etc/apt/apt.conf Cannot login into lightdm, it asked password and looping. I change the ...
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votes
0answers
134 views

Ubuntu Touch: kill Windows Manager and start xterm in GUI Mode

I installed xterm and I would want it to be the Only GUI application running. so I killed the lighdm using: sudo service lighdm stop. and try to run xterm using: sudo xterm through a SSH ...
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0answers
122 views

How to assign one X Screen to one LightDM seat?

I'm trying to configure a multiseat setup on a desktop PC with two keyboards two mice two monitors attached to the same graphics card (Nvidia NVS 310) Using these instructions I managed to make ...
0
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1answer
121 views

Lightdm is broken when used ubuntu tweak to change the default background!

I have ubuntu 14.04 and I used the "change login screen background" and now, when I change my wallpaper, The wallpaper on the login screen dose not change and if I change it via ubuntu tweak, The ...