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

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GUI login problems in Ubuntu 14.04LTS

my problem is very similar to that presented here: Ubuntu gets stuck in a Login Loop I am using Ubuntu 14.04 LTS. I can enter my account in GUI just for 1-2 seconds after that I am returned back to ...
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84 views

Chrubuntu 12.04 Desktop Won't Load

I'm on a Lenovo X131e Chromebook. Upon start up I am able to move the mouse pointer around a black screen with a blinking text cursor in the top corner. If I switch to a terminal and then try to ...
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2answers
623 views

How to change Ubuntu login screen background without dconf-editor?

I am trying to change the Ubuntu login background which should be the same as the wallpaper, without installing dconf-editor or additional software. Is is possible?
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1answer
210 views

Ubuntu 12.04 in login loop as lightdm-session says upstart not found

I tried to install a package systemd (this replaces upstart in Utopic 14.10 and up). See my yesterday question How to Re Generate All Gnome Schemas for Ubuntu 12.04. The result was that it didn't ...
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1answer
90 views

error opening display after lightdm stop

I'm trying to install CUDA and following these instructions. Eventually I get to a point where I need to run: sudo service lightdm stop At that point the GUI shuts down but instead of a terminal ...
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0answers
1k views

Xubuntu and Ubuntu's display managers coexisting

I'm running Ubuntu 14.04. I installed Xfce via the 'xubuntu-desktop' package to try it out. After a couple days I decided to get back to Unity so I removed it and several other packages it came with. ...
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1answer
183 views

LightDM does not ask for login password

I have an auto-logged in non-sudo user called "screen". I have a passwordless sudo but login-protected user called "support". I'm pretty sure this was working fine before, somehow maybe the latest ...
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0answers
84 views

When I turn my monitor on after it has been off, it does not display anything

I am running Xubuntu 14.10 on a desktop and use LightDM. As I said in the title after I turn off my monitor (with the computer already on) and then turn it back on again there is no input from my ...
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1answer
373 views

Xubuntu 12.04 desktop won't start

My computer started hanging on the greeter screen. I cannot start a local X session, but can still select rescue from GRUB and boot to a tty. In addition sshd and the xrdp server seem to work normally ...
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2answers
379 views

Configure and run indicator-sysmonitor on boot at login prompt

I want to use indicator-sysmonitor to display an indicator showing that the network connection is up amongst other things immediately at boot on the lightdm login screen. I followed these steps to ...
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1answer
380 views

Lightdm-gtk-greeter centre image

I use lightdm with lightdm-gtk-greeter. Is it possible to modify the greeter so the login screen will centre a wallpaper image that is smaller than the screen? The image I use gets stretched to fill ...
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1answer
219 views

Cannot change GTK and icon after changing LightDM greeter

I changed my LightDM greeter and suddenly I cannot change my gtk or icon theme. The dconf settings are there, but the system is not responding to changes, nor are the themes being used by all ...
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1answer
458 views

Unity has disappeared from lightdm after updating gnome-shell

This morning I ran sudo apt-get upgrade and it prompted me to update gnome-shell. I never really use the gnome desktop environment, but I figured I might as well keep it up-to-date. After restarting ...
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1answer
235 views

nvidia and intel low-graphics mode error

I have ubuntu 14.04.1 64bit installed with intel and nvidia video cards . I'm using xorg-edgers ppa to graphics drivers . Today i got an update for the drivers (i think it was the mesa drivers) . when ...
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1answer
6k views

What to do when nothing seems to fix Ubuntu 14.10 stuck after log in?

So I run Ubuntu 14.10 on HP Pavilion g6, i5 and with Radeon HD6500. Yesterday Ubuntu crashed and since then I can't get anyfurther than the log in screen. Ubuntu simply stucks with only the background ...
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1answer
342 views

Wake from suspend, password field missing?

Ubuntu 14.04. Brightness & Lock settings are to turn off screen after 10 minutes and lock screen after 30 minutes. 50% of the time, when I wake my computer from suspend, the login field to enter ...
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1answer
86 views

X11 doesn't show windows edges, task bar nor anything

I've got a problem with X11 as when I turn on my computer, after the system has launched, I see only my desktop. I don't see the upper nor left bar. When I doubleclick a file on my desktop, a new ...
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1answer
2k views

How to change Ubuntu's default login screen for gnome ubuntu login screen?

I'm using 14.04 LTS with unity, but i removed the ubuntu desktop and installed the gnome ubuntu desktop instead, since unity has given me some errors... The thing is, im happy with gnome, but the ...
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1answer
480 views

nVidia on Ubuntu 14.04 black login screen (not freeze)

Recently I installed STEAM on my Lenovo IdeaPad Y510p (core i7 + nVidia 755m) laptop running Ubuntu 14.04. I want to use nVidia for sessions when I play games and Intel for everything else. Therefore ...
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1answer
199 views

Handling laptops with docking stations on XFCE

Anyone here running a setup in which they use a laptop + docking station setup for XFCE? At work, I plug/unplug from multi-monitor setups all the time and on unity I didnt have an issue (Radeon ...
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0answers
426 views

Ubuntu 14.10 Lightdm greeter resolution before login

There are various answers for changing the resolution of the Lightdm greeter before login by adding a root executable script to /etc/lightdm/lightdm.conf like this: [SeatDefaults] ...
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1answer
31 views

Strange Driver Corruption

So I have a "portable" install of 14.04 (I installed the full distro on a USB3 stick) and I'm having the strangest driver corruption/bug: As you can see, anything that uses it's own renderer (I ...
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2answers
88 views

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
710 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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0answers
912 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
291 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
435 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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1answer
197 views

Where can I find alternative greeters for LightDM?

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
5k 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
247 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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2answers
1k 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
1k 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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1answer
2k 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 ...
3
votes
1answer
10k 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 ...
2
votes
1answer
315 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..." ...
4
votes
2answers
7k 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
77 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 ...
0
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1answer
428 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 ...
2
votes
1answer
1k 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
716 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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0answers
68 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 ...
2
votes
2answers
199 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 ...
1
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2answers
194 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 ...
1
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0answers
381 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
289 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 ...
0
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1answer
212 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, ...
0
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1answer
261 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
429 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 ...
1
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1answer
1k 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 ...