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

learn more… | top users | synonyms

0
votes
0answers
9 views

How to disable ATI discreet 16.04 LTS

I'd like to save battery by disabling the ATI discreet graphics in 16.04 LTS, and use only my default power-saving onboard Intel. Could someone guide me step by step accurately through the process? ...
0
votes
0answers
13 views

Boot process stopped after installing gdm

I have installed gdm to replace lightdm, but after rebooting, I am greeted by a black screen. Switching to another TTY, shows me the following message: A start job is running for Hold until boot ...
0
votes
2answers
54 views
1
vote
1answer
37 views

Running a bash script from an xsession to toggle startup programs

So I've got an interesting challenge in front of me, running Ubuntu 16.04. I originally created a .xsession file that ran Exec=google-chrome --kiosk http://some-url.com to boot as a kiosk device. ...
0
votes
1answer
20 views

Question about Kodibuntu auto-login default session location? [on hold]

My apologies for mistakes in terminology. I only know enough to be dangerous. OK so I'm running live USB Kodibuntu. I have a casper-rw which keeps data from session to session. The OS automatically ...
1
vote
1answer
31 views

Upgrade from 15.10 to 16.04 now Simple Desktop Display Manager (SDDM) won't start

After upgrading from Ubuntu 15.10 to 16.04 via do-release-upgrade I can now only boot into TTY mode. The boot log shows: [FAILED] Failed to start Simple Desktop Display Manager. See 'systemctl status ...
0
votes
0answers
20 views

Plymouth to LightDM smooth transition

I have set the grub background, plymouth splash background and desktop wallpaper all to the same image just to give a more uniform boot process. The only issue I have now is the transition from ...
1
vote
0answers
17 views

Ubuntu virtual terminal exits too quickly for me to type

I've been having a nightmare trying to install an NVIDIA GPU on my desktop computer (Ubuntu 14.04). I inserted the card and tried following various instructions online, but that did not work and I got ...
2
votes
1answer
31 views

How do you use the TTY (without X server) on one screen, and X on the other?

While playing around with Ubuntu, I turned off the window manager. Unable to operate the terminal in xserver, I jumped over to a bash command line (Ctrl-Alt-F1), and relaunched lightdm. After having ...
1
vote
1answer
48 views

How to make Greeter/Login Wallpaper Match Desktop Wallpaper

So the default behavior of the Ubuntu login screen was that it would match match my Desktop wallpaper. So for example, if I was on the login screen and I clicked between my username and the Guest ...
0
votes
0answers
23 views

How to add Unity option to Kubuntu login screen?

I have installed Kubuntu on a machine, and decided to install a few desktops so I can change depending on my mood. However, when I ran sudo apt-get install unity, it installed fine, but when it ...
0
votes
0answers
24 views

How to boot desktop into text mode [duplicate]

Is it possible to have a DE which only opens the terminal, like the way it is on an ubuntu server distro?
1
vote
0answers
38 views

lightdm and gdm not working in Ubuntu 14.04

I have a problem with Ubuntu 14.04, the graphical mode can't started in the log screen : starting LightDM display manager [fail] then I tried to use gdm, starting gnome display manager fail, i don't ...
0
votes
1answer
72 views

What file or setting controls user backgrounds in unity-greeter?

Ubuntu 16.04 LTS Xenial The unity-greeter background image for my user stopped inheriting my Unity desktop background. Whatever image I use, it is still stuck on Flora... Selecting guest user changes ...
0
votes
0answers
88 views

Need script to logout after 20 minute idle time and then auto login

I have a public internet terminal at my workplace. Often, users will simply walk away from the machine without logging out (of email, facebook, etc.) -- I want to make the end-user experience more ...
1
vote
0answers
32 views

Cannot login after suspend with multiple monitors

Since I attached an external monitor to my laptop I'm no longer able to login when resuming from suspend. LightDM appears on both screens and shows my name in the login box, but the password field is ...
0
votes
1answer
14 views

fixing things from a LiveBoot session

I switched from LightDM to something else when I was messing with my system late at night. When I rebooted, the screen went black. I'm currently booted from Bhodi Linux on a flash drive, and am ...
1
vote
0answers
40 views

Scripting dconf changes

I've written a simple script for our Ubuntu machines at college which sets some dconf overrides to set the theme, background etc. However I cannot seem to get it to correctly set the login screen ...
0
votes
1answer
25 views

Not asking for password in GUI for login even when there is a password set in Ubuntu 14.04

I have a user which has no sudo rights. I have set the password for the user using cli. But when I logout and try to login again, the user is not asked for a passord and logs in as soon as the ...
0
votes
1answer
176 views

x11vnc and lightdm on headless 16.04

I need to access a remote xenial machine with x11vnc sudo apt-get install lightdm x11vnc installed the necessary parts. Then, I created a password with sudo x11vnc -storepasswd yourVNCpasswordHERE ...
0
votes
0answers
18 views

Can't find session 'default' for desktop log in

I have a puzzling issue on a newly installed 14.04.4 LTS. I configured it for nis and it works when I ssh into the machine. But if a user tries to log in on the desktop it fails with the "Can't start ...
0
votes
0answers
16 views

How can i set xscreensaver to work directly from lightdm login screen?

Trying here to enable xscreensaver to work directly from lightdm login screen. It's currently work only from a logged session, when it is on login screen when time pass, it blanks out the screen, ...
1
vote
1answer
74 views

Login Loop for Guest Account only on 16.04

I have some 40 Dell Latitude E6410s I maintain in my classroom for student use. I have successfully setup and used special 'guest' accounts so the directories are wiped between uses. This scheme ...
1
vote
0answers
26 views

Using lightdm webkit greeter in 14.04

All guides indicate I need to change a setting in /etc/lightdm/lightdm.conf, and that's how I did it last time, but there seems to have been some changes since that was written. lightdm.conf doesn't ...
1
vote
0answers
163 views

Cannot switch to Gnome on 16.04

I just installed Ubuntu 16.04. I have it already on my laptop with Gnome 3.20 working. My desktop pc has an i7 4790 and AMD HD 7950 installed the Gnome 3.20 and rebooted. Now I have the icon to switch ...
0
votes
0answers
40 views

Two graphics drivers at the same time?

I have an Intel integrated graphics card "Intel cooperation skylake integrated graphics (rev 06)" and an Nvidia GTX 960m on my laptop. I wanted to use the skylake integrated graphics card for my ...
0
votes
0answers
31 views

Can not login .XAuthority seems broken

I know that this is a common error and I have read many threads in this regard. I get to the logon screen and type in my pw and it hangs for 20 seconds or so and then displays the log screen again. ...
0
votes
0answers
38 views

Login problem after Hibernate with Dell E7440

Yesterday I installed Xubuntu 16.04. It uses the lightdm display manager to log in. This works. The issue: I use a Dell Latitude E7440 with Docking station. Most of the time, the screen of the ...
0
votes
0answers
53 views

Ubuntu 14.04 login loop Unity terminated with status 1

I have ubuntu 14.04 and am stuck in a login loop problem despite trying the common answers to the multitude of questions on the site ,none have worked. I can't figure out what's wrong and would be ...
0
votes
0answers
100 views

Ubuntu 15.10 to 16.04 and lightdm display-setup-script: can't connect x server

After upgrading from 15.10 to 16.04 my lightdm.conf command has caused black screen on boot, never reaching the login screen: display-setup-script=xrandr --output DP2 --auto --primary --output HDMI3 ...
0
votes
1answer
82 views

Takes a very long time to log in to gnome 3.18.4 in Ubuntu 16.04

I just installed Ubuntu 16.04 via update from 14.04. I'm using gnome-shell 3.18.4. When I want to log to my gnome shell session the login is very slow, it takes more than 1 minute where the the only ...
0
votes
0answers
280 views

Ubuntu 16.04 Xorg / lightdm crashes on boot with GTX 970

When I boot my Ubuntu 16.04 liveUSB on my desktop (GTX 970, i5 4440) I get to LightDM and then everything falls apart. My mouse freezes and my main monitor (connected to the GTX 970) starts blinking ...
0
votes
1answer
531 views

Ubuntu 16 Stuck in Login Loop after Installing Nvidia 364 Drivers

This didn't start out as a problem with the login loop. I was attempting a clean install of Ubuntu 16 and using the new feature that allows it to detect proprietary drivers for me. I started off ...
0
votes
1answer
358 views

Ubuntu 16.04 stuck at LightDM login screen

So I just installed Ubuntu 16.04 yesterday. Today I wanted to login to the computer and suddenly it doesn't log me in anymore. I can enter my password, but when I hit return to log in the screen goes ...
0
votes
0answers
18 views

How to make user automatically log in in Lubuntu 16.04? [duplicate]

How do I make a user automatically log in in Lubuntu 16.04?
1
vote
0answers
21 views

shutdown or reboot after entering wrong password x times

My laptop is configured with a bios password to unlock the encrypted ssd. Most times I don't shut it down and use just suspend/resume - this of course leaves the ssd accessible. To increase security ...
1
vote
1answer
219 views

login loop after upgrade to 16.04

I encountered a login loop after updating xenial beta to the latest updates. I tried a lot of things: xauthority or /tmp privileges change Reinstalling nvidia drivers, removing them. reinstalling ...
1
vote
2answers
362 views

16.04: lightdm(lockscreen) can't connect to wifi. (1) Insufficient privileges

After upgrading to 16.04 (clean install) from 14.04, (so not really upgrading, but you get the point) I notice that lightdm with unity-greeter can't connect to WiFi with network-manager. I get the ...
0
votes
1answer
2k views

How can I set up Ubuntu Server 16.04 to load a GUI on demand?

I would like my server to boot to command line by default but load a GUI when I need one. I have a virtual machine set up just for testing and I got the standard UNITY GUI installed on it no problem. ...
9
votes
6answers
5k views

Can't get nVidia drivers working with 16.04, logs out right after login

I have installed Ubuntu 16.04 beta 2 on Monday, Apr 18th. When I try to install nvidia-current, nvidia-361 or the version that jockey installs, either lightdm fails to start entirely or I can't get ...
0
votes
0answers
15 views

Ubuntu custom theme doesn't work on boot

My ubuntu custom theme doesn't want to load until i restart the lightdm service. That's the only solution that has worked so far. If i don't restart the service, i get the default system theme. How ...
0
votes
0answers
29 views

Is it ok to kill lightdm and related processes in lubuntu to reduce load as I use terminal? [duplicate]

I'm running Lubuntu 14 in my old PC. I have connected it to my router via ethernet and access it with putty, it has no dedicated monitor. I think the GUI is not needed any more, can I kill the ...
1
vote
4answers
170 views

How to boot to a terminal from a black screen and flashing cursor after updating the NVIDA graphics driver

I'm running Ubuntu 14.04 LTS and updated my graphics card to Nvidia Quadro K4200 in order to get stereo capability. It worked with the recommended Ubuntu driver (nvidia-352), although I struggled to ...
0
votes
0answers
42 views

Can't login to my account with neither gdm nor lightdm

What I've tried: I am able to login as myself via tty I can login as guest (graphical) Installing gdm and using that instead of lightdm (see title) ~/.Xauthority is empty and owned by me. ...
0
votes
0answers
28 views

14.04 boots into black screen even after a fresh install

So, this started after I took out the hard drive (after turning it off, and unplugging the power source). It would just boot to a black screen. It would show the purple ubuntu screen, but no log in ...
0
votes
0answers
16 views

port 6000 X11 opened out of nowhere, cant close it

Just noticed that my port 6000 is open. netstat -anup output: Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:6000 ...
0
votes
0answers
53 views

Span Wallpaper Across Displays in Lockscreen

In the Appearance tool, we have the option to span a wallpaper across multiple displays. On the Desktop it works fine: However, on the lock screen I see the same image repeated three times: ...
0
votes
2answers
39 views

Error while installing lightdm-webkit-greeter

I can't install the package lightdm-webkit-greeter on Ubuntu 14.04 sudo apt-get install lightdm-webkit-greeter Reading package lists... Done Building dependency tree Reading state ...
0
votes
1answer
33 views

GUI doesn't have escalated permissions, Ubuntu 14.04 lightdm

Relatively new user here. So I am having some permission issues with the desktop. The sysadmin before me set up Ubuntu 12.04 on the other machines, and it seems to work OK. I set a new machine up ...
0
votes
0answers
22 views

Xubuntu lightdm screen fliks

So on Xubuntu I have a lightdm by default. When system is booted or one is logging out and lightdm starts it blinks after 2-4 seconds. If I do logout form XFCE4 session for a mentioned period I can ...