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

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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 ...
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1answer
48 views

How can I have my login screen use the same wallpaper as my desktop?

I use pcmanfm to display wallpapers on my desktop. The location of the conf file for pcmanfm is ~/.config/pcmanfm/lubuntu. In this file the wallpaper is simply set in this form: ...
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19 views

Ubuntu 14.04 - Lightdm and Unity optimal configuration

What I'm using: SonyVaio Vpcef2e1e (with 4GB RAM and Ati mobility radeon™ hd 4250) In the old days I never had issue with the graphics. I had to fight sometimes to add drivers to the graphic ...
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3answers
5k views

No screens found with usable configuration (Live-CD), boot-repair CLI

I have an MSi GE70 Laptop (Graphics: nvidia GeForce GT650M). At first I couldn't boot nor install. After adding 'nomodeset' in Grub I was able to start the installation. `Try Ubuntu`` just gave me a ...
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5answers
1k views

rotated monitor. login screen needs rotation

I rotated my screen, an once I login, it works fine. but, the greeter (login) screen hasn't got the message that things are rotated 90 degrees. How can i change the rotation of the login screen? ...
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16 views

Is restarting lightdm likely to cause any serious problems?

I frequently mess things up and I have to restart the computer. Recently, I started restarting lightdm / gdm, as it is quicker. Is that a sensible thing to do? I use the following command (in tty): ...
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2answers
357 views

LightDM not loading in 12.04 in VirtualBox

The boot process just stops here (below). I've tried stopping/starting lightdm but it doesn't even stop nor can I pkill it. I've already ensured that my bios has visualization enabled and have most ...
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2answers
42 views

Do logins by the gdm (or lightdm) user in auth.log mean my system is breached?

Please look at this auth.log (from Ubuntu 14.04) I have provided and tell me who this gdm user is and why there are all these unauthenticated logins? I am freaked out; please help! Here's the ...
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12 views

Theme lightdm-gtk-greeter

There are a couple of question that deals with changing the icon theme / desktop theme of the lightdm-greeter. I wonder if it is possible to change other parameters of the greeter in order to be ...
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2answers
5k views

Intel Haswell strange graphics and boot issue

I build a new system with a Core i5-4570S CPU and I use the internal graphics card. I can Install Ubuntu 13.04 without problem and everything seems to work fine, but during boot and when I turn the ...
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3answers
16k views

How to configure lightdm to allow manual logins in Ubuntu 14.04

I used to modify /etc/lightdm/lightdm.conf, adding the line greeter-show-manual-login=true, in order to allow login for hidden users and root. Now I've just installed the new Ubuntu 14.04 and the ...
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20 views

Ubuntu login screen

I have installed lxde desktop environment for my Ubuntu 14.04 and then afterwords I delete it. Then my old lightdm unity login screen changed to this one ...
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2answers
3k views

Type password into login screen, hit enter - nothing happens

I first install Ubuntu 13.10 a few weeks ago and its been going great. I'm still pretty new to Linux, so I haven't been doing a whole lot. The past couple days I've tried installing LAMP, then ...
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0answers
65 views

How to adjust DPI in 14.04

I asked about fixing DPI in 12.04. The 14.04 release notes list "Support for High-DPI screens and desktop scaling." Post upgrade, it seems that nothing has changed. Similar symptoms from my previous ...
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59 views

Lock screen does not display all users (ubuntu 14.04)

When I lock my screen using Ctrl+Alt+L, I am not able to see other users listed within the lock screen so I can switch instead. The lock screen shows only my name as an option for login, however I ...
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1answer
60 views

Ubuntu 14.04 update lightdm broken

I think the screenshot explains it better than I can. I'd like to post a helpful bug report on Launchpad, but how do I even explain this? This seems to have come on as a result of a failed update - ...
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3answers
4k views

Cannot pass the login screen after upgrade to 12.04 from 11.10

I just performed the upgrade from Ubuntu 11.10 to Ubuntu 12.04 LTS. The updater downloaded all packages but a few ones that the system said were already installed. When asked for it, I chose to ...
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4answers
19k views

How do I hide a particular user from the LightDM login screen?

How do I hide a particular user from the login screen on a default install of 11.10 and higher? (ie. using LightDM)?
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1answer
101 views

How to get Pantheon Greeter on Ubuntu 14.04 instead of Lightdm

I'm running Ubuntu 14.04, how can I replace the lockscreen with the one on Elementary Luna (Pantheon-Greeter). Thank You!! Edit: Can anyone do it and confirm it works completely?
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2answers
873 views

GDM and Lightdm don't work after update; KDM is ok

After updating Ubuntu (apt-get update, apt-get upgrade and apt-get dist-upgrade) last Tuesday, GDM stopped working, and the startup hangs on the Ubuntu logo. Lightdm also don't work (same happens). If ...
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1answer
40 views

How to enable Lubuntu lightdm dinamic autologin (sorry for my english)

Hi I freshly installed Lubuntu 14.04 I disabled lightdm autostarting by editing /etc/default/grub Well.. I got some problems "sudo service lightdm start" is working but startx command always ...
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1answer
294 views

Can not login to Ubuntu 13.10 after reboot

For some reason on my System76 Bonobo, after a reboot, i try to login and I get a blinking cursor in the top left for a few seconds, than right back to the login screen. It SEEMS like lightdm crashes. ...
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1answer
28 views

Login screen freezed after resume

Today I came into strange problem. Yesterday, as always, I suspended my Ubuntu 14.04 (Unity) laptop for night. Today as I open it up it shows login screen (lightdm) but it is impossible to write ...
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2answers
53 views

Are desktop files stored in hard drive? [closed]

Hi I'm new to Ubuntu and I do not know much about this OS. The problem I am having is getting access to files on the desktop without booting the OS, I am currently running a 14.04_live according to ...
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2answers
108 views

Why do desktop / monitor screens fail after staying logged in overnight?

I am currently running Ubuntu 13.10. I experienced this same issue with Ubuntu 12.04, so I dont believe the following issue is tied to a specific release. I am using Ubuntu for work, by choice. Id ...
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27 views

How can I make my display work again in Xubuntu?

I'm running Xubuntu 14.04 and I was testing some stuff because I have a dual display setup, and one display never wakes up from suspend. So I tried this, to see if the display would wake up: sudo ...
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10 views

Xhost disabled in Ubuntu 12.04 LTS

Trying to fix some issues with my graphic chip (intel HD4000) and lightdm about very frequent system hangs a while ago (several months), I somehow disabled xhost program, so everytime I log in my user ...
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26 views

Ubuntu 14.04 login goes back to login screen

When I login it again come back to login screen. I tried tty1 terminal to reconfigure lightdm but it does not connect to Internet. While connecting to Internet it shows the error message path ...
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2answers
2k views

Ubuntu 12.04.3 Graphics Issues: Broken Pipes, Reinstalled Xorg and Bumblebee

It seems I have a problem, and am only making it worse by following what I find online. I have a new Asus N550JV-D71 (not sure about the part after the dash, though I definitely know it includes 71). ...
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1answer
452 views

12.04 After HWE upgrade and running Ubuntu Tweak to clean cruft, can't start lightdm

I did the HWE upgrade and that worked fine. System started fine. But I ran Ubuntu Tweak and it reported massive amounts of cruft. So I did the Janitor and uh-oh...system boots to command line ...
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17 views

Login Loop after fsck to Fix Not Booting (common fixes not working)

In the last month my Thinkpad X201 running 14.04 hasn't booted multiple times and drops into initramfs. Each time I had to use a live usb and fsck to fix errors, so it would run again. This usually ...
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8 views

Graphics and input settings load delay on boot

Whenever I boot my system, after loging in, it takes half a minute for my display settings and my input settings to load. This means that for the first 30 seconds I have the default resolution ...
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38 views

Black screen on bootup

I've had a problem since loading ubuntu alongside my windows install now. I'm running 14.04 and using Gnome 3.12 shell and Lightdm. When booting up the Ubuntu splash screen looks normal and pushes me ...
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0answers
44 views

How do I use lightdm for login instead of light-locker?

I installed xubuntu on my laptop and recently removed nearly all of the xfce4 packages in favor of a kde desktop. However, light-locker is still used for the login screen. How can i remove it and ...
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1answer
38 views

Unable to login after deleting Guest User Account

I was trying to tweak Ubuntu after fresh installation and following various links on web stating "Things to do after installing Ubuntu 14.04" I was trying to remove Guest User Account from the start ...
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0answers
133 views

Enable numlock at login screen - with thin client?

I want to enable numlock at the login screen. numlockx is already installed. I've tried adding "greeter-setup-script=/usr/bin/numlockx on" to etc/lightdm/lightdm.conf, which by the way only works if ...
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2answers
481 views

black screen / low graphics mode on logout

If log out from session, get black screen and the "low graphics mode" dialog, sometimes with cursor, sometimes without. 14.04 with latest fglrx. Dual head Pavillion dv6-6051er. ONLY when log out. ...
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73 views

How to configure a password for LightDM VNC connection

I have ubuntu 14.04, and am using lightdm. I want to login to the machine from another (windows) computer using VNC. By using the following /etc/lightdm/lightdm.conf I get a VNC server, but when I try ...
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1answer
146 views

When watching video full screen online, screen goes grey

When I have watched a video online (usualy with YouTube video's), be it with Firefox or Chrome and press the button to exit full-screen mode, my laptop screen turns grey and there seems to be nothing ...
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0answers
31 views

Ubuntu 12.04 freezes when switching to lightdm

I was changing the theme in my Ubuntu 12.04 to Mac OS theme, constantly installing, logging in and out, rebooting when trying to fix things along the way. While I was doing a reboot, it froze, for the ...
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0answers
21 views

How to enable second x session on tty8 in 14.04

how can I enable a second x session on tty8 in ubuntu 14.04? /etc/lightdm/lightdm.conf and [LightDM] seats=Seat:0, Seat:1 ... [Seat:0] user-session=ubuntu autologin-user= [Seat:1] ...
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2answers
252 views

Ubuntu release upgrade from 13.10 to 14.04 fails - log-in fails

Upgrading Ubuntu To upgrade from Ubuntu 13.10. to 14.04. I ran sudo do-release-upgrade. The first attempt failed and I found the following message in the error log: ...
4
votes
1answer
5k views

Lightdm: Select Window Manager (disappeared?)

Cant select with what window manager want to start X. I think its for unity-greeter. The icon that appears next to your username and let you start X with unity-2d, gnome, unity, kde, etc have gone ...
0
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1answer
81 views

LightDM login fails for LDAP users

When trying to log onto a Kubuntu 14.04 LTS system. I noticed that all users would pass, when logging in via ssh, but graphical login (i.e. LightDM with the KDE greeter) would just be possible for ...
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1answer
343 views

How do I get my Unity login screen back after installing Lubuntu Desktop on 14.04?

I have installed lubuntu-desktop and xfce4 on a Ubuntu 14.04 installation. After doing so, my login screen changed. I have tried resetting my LightDM and attempted to modify the lightdm file, where ...
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4answers
10k views

Unable to start lightdm but can startx

I am trying to make my own Live USB and I have successfully generated an ISO file with a newly installed, configured and customized Xubuntu 12.04 LTS installation. My problem is that, no matter I ...
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3answers
3k views

How can I require users to also enter their usernames upon login?

Good day, Does anyone know how to modify the login screen so that users are required to type their username along with their password? I'm running Ubuntu 12.04 with all default settings
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0answers
22 views

GNU-screen not working after startx

I recently uninstalled lightdm in favour of starting X from the command line, so that I could jump between different window managers without having to configure lightdm. Now I just type startx and the ...
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1answer
60 views

No desktop after login?

So I just installed Ubuntu Minimal 64bit and when I login it just leaves me on what looks like a command page that says jerric@Jerric-HP:~$. I don't have Windows anymore, I think. What do I do? ...
2
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1answer
3k views

Unity greeter does not display custom wallpaper

I am using Ubuntu 14.04 LTS 64 bit . I know this question has popped up many times but I want to make it very clear that none of the posts helped me a bit. my Problem: I am unable to get my custom ...