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

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1answer
2k views

I have to restart lightdm after run

After starting the system, i've a black screen (without any screen backlight), then i have to switch to tty6 (ctrl+alt+f6), login and restart the lightdm: sudo service lightdm restart I'm using ...
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31 views

Ubuntu deleted from lightdm!

Compiz messed up the other day and erased my status bar. This was not uncommon, but this time it wouldnt let me open up the terminial to fix it. After a long time, i found out how to uninstall compiz ...
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0answers
143 views

Screen always on when on Lightdm login [duplicate]

Since updating from 13.04 to 13.10 my monitor when on login screen (Lightdm) is always on and the blank screensaver never works. Gnome Screensaver is activated and is working find when logged in. ...
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0answers
82 views

(How) Can X11 Know My Screen Orientation Pre-Login? (Ubuntu 12.10)

Problem: a laptop usually plugged into 2 external monitors, both rotated 90 degrees. At login time, the 3 displays are mirrored, and only the laptop itself is appropriately oriented. I'd prefer to ...
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0answers
17 views

Shift ket displays dots in lightdm

I have my first xubuntu 1204 installed. On login my shift keys show dot in the password field. When released, everything is ok, I can use it as usual. I only have to clean the field to enter my ...
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0answers
230 views

How to change default wallpaper presentation?

I'm running the official release of 13.10. Upon adding wallpaper from my pictures folder, the default presentation rendering is automatically switched to zoom. I can then manually change it back to ...
0
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2answers
2k views

login problem for 13.10, my username does not appear

After upgrading my Ubuntu to the newest version 13.10, in the login interface, my account does not appear. I can login the guest session. There is also a remote login. I have no place to input my ...
3
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0answers
548 views

How do I disable the guest session in Ubuntu 13.10? [duplicate]

With Ubuntu 13.10 this question on how to disable the guest session no longer works because I think the lightdm config files have changed in Ubuntu 13.10. I know you used to have to add the line ...
0
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1answer
137 views

Lightdm active user indication removed

Just updated to 13.10 and I notice the Lightdm sign in screen on a multi-user system no longer indicates which users are already logged in. Previously active users were listed in bold text.
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1answer
1k views

Replace LightDM with MDM on Ubuntu 13.10

I'm trying to replace LighDM with MDM on Ubuntu 13.10, but there already is package in Ubuntu sources called mdm. It's not display manager, but "The Middleman System"... So the PPA install doesn't ...
6
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1answer
2k views

Personalize monitor position before login

I'm using multiple monitors. When logged in everything I fine. Left monitor is positioned left and right monitor is positioned right, but before I login the login screen positions them the other way ...
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0answers
75 views

Loading of live USB hangs on old PC

I'm brand new to Linux. I created a live USB of Ubuntu 12.04 32-bit with Universal USB Installer. It hangs partway through when it is loading. The last two things seen are: [74.920653] init: ...
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1answer
2k views

How to fix Ubuntu 12.04.3 boot to black screen full of errors in white text, after upgrading on dell inspiron 1501

I am running a Dell Inspiron 1501 I use Linux only. No Microsoft or Apple operating systems (or really anything closed-source). I've only been using Linux for a little over a year but I'm starting to ...
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0answers
200 views

How can I change Unity Greeter sound theme?

I can't say I'm a fan of Canonical's taste in sounds and wallpapers... (but I am a fan of clean methods for tweaking - as opposed to overwriting the original files) Thankfully, as of 13.04, custom ...
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0answers
179 views

Remote login lightdm with virtualbox vrdp

I recently came across vagrant, and would like to set it up to use as a throw away dev environment. I was hoping to be able to use the lightdm remote login freerdp to login to the desktop but have so ...
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585 views

Issues changing lightdm unity-greeter background Ubuntu 12.04:

Following the guide at: How do I change the wallpaper in LightDM? I attempted to modify the background for the unity greeter. However, whenever I attempt to turn off dynamic switching: ...
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2answers
311 views

error to install lightdm because of plymouth

When I use this command sudo apt-get update , the output is as follows: Hit http://security.ubuntu.com raring-security Release.gpg Hit http://us.archive.ubuntu.com raring Release.gpg Hit ...
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59 views

Ubuntu screen freezes on Startup but can here login sound?

so I just installed Ubuntu on my Laptop and the installation went reletively okay. But when I bought Ubuntu from Grub I get the usual Ubuntu startup splash screen and it then just stays on that ...
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3answers
1k views

Ubuntu is in command mode how to turn on the GUI mode again?

I have HP Probook 4540s with Radeon graphic card, I downloaded drivers from This site and installed those after reboot I couldnt see my launcher and toolbar but yes i could use few shortkeys, I looked ...
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0answers
1k views

What is the “Light Display Manager” user account? [closed]

I installed Ubuntu 13.10 and suddenly I see a new user account to log in to (besides mine), called "Light display manager". Could someone explain why this account appears?
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162 views

After logging into Guest Account, my user's desktop customizations are gone

This is a weird one. Out of curiosity I had clicked on the Guest Session option at login, to see what it was like. Now, when I log into my original user, all of my desktop customizations are gone and ...
0
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1answer
1k views

low-graphics mode error in 13.04 with no graphics card [duplicate]

When I try to boot my computer, I get this error: "The system is running in low-graphics mode Your screen, graphics cards, and input device settings could not be detected correctly. You will need to ...
0
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0answers
25 views

LightDM login problem [duplicate]

Suddenly I am not able to login as usual, I just get kicked back to the login screen all the time. I haven't made any configuration changes, but there were some automatic updates installed before this ...
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0answers
46 views

xorg, jetty, and lightdm all crash my system when run

Whenever I start xorg my computer crashes. I am brought out to a black screen much like the one that it shows when I shut down my computer. After displaying this screen for awhile it kicks me out to ...
0
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1answer
255 views

Screen glitches or freezes after screen lock with Intel Video Driver

I'm running 13.04, and have an Intel HD 5200 display, using the Intel drivers. When the screen times-out and locks, most of the time one of two things happens: Either the current windows are still ...
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0answers
2k views

Invisible mouse

When I boot Ubuntu I can see the mouse cursor at the login screen but once I put my password is see this error could not acquire name on session bus I tried to Google the error but all I find is stuff ...
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0answers
33 views

Another way to fix “The system is running in low-graphics mode” error? [duplicate]

I began having the infamous "system running in low graphics mode" error after my daughter turned off the power so she could boot into Windows. Looking at the lightdm log in in /var/log/lightdm/ ...
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0answers
64 views

Adding Virtual Machine to lightdm

Is there a way for a virtual machine to start directly from lightdm? I have installed android in virtualbox which I want to add in lightdm for direct access. I am enjoying my Chromium OS from lightdm, ...
0
votes
1answer
668 views

Ubuntu Remote Login help

I'm trying to register a machine in the "Universal Client Configuration Service" so I can login remotely (via the login page for lightdm), however I'm not sure what to use in the "Server URL" field. ...
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0answers
30 views

Any Mechanical Drive Tweaks?

Noticed a couple of SSD-specific tweaks like putting log files to tmpfs, discard and noatime, etc. Was curious if such tweaks would also work on mechanical drives or be advisable? I noticed a little ...
0
votes
1answer
570 views

no GUI after normal update

After I finished working, I made the usual update that ubuntu every now and then ask to do. Please notice is update, I'm not upgrading the distro. After it finished, it asked for a reboot which I did. ...
0
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1answer
84 views

how to save while editing in /lightdm.conf

Hi I tried disabling guest account by editing lightdm and a bug sends me to it showing low graphics. I went I to termin and undid the change I made in /lightdm.conf but don't know how to save tbe ...
2
votes
1answer
2k views

Login loop with gdm and lightdm, startx works

I am running 12.10. Attempting to login via gdm lands me back at the login page. The behaviour is the same for when I switched to lightdm. Logging in with guest is fine, and logging in with a test ...
3
votes
3answers
9k views

(13.04) lightdm crashing - black screen flashing cursor

I am using the 13.04 x64 release of Ubuntu on my PC and at least it works so far as it should. But suddenly the lightdm crashes during boot and even if I try to start it manually from terminal after ...
0
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1answer
103 views

Upgrading from 12.04 LTS to 12.10

I have Ubuntu 12.04 installed on my VAIO, alongside Windows 7. I know Ubuntu upgrades won't damage my Windows drive and I'm fine about it, but I've seen people saying 'Unity 2D removal' and 'purge ...
3
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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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0answers
33 views

Login screen loops on Unity, how to get out? [duplicate]

I understand that there are several questions discussing essentially the same thing in the past, and I have already looked through most of them. I have a Ubuntu 13.04 installation that was working ...
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vote
1answer
628 views

Login Screen Doesn't Appear Automatically, need to press Ctrl+Alt+F1 and then Ctrl+Alt+F7

I am new to Ubuntu, used Mandriva for years but that was a long time ago. I recently installed Ubuntu 12.04 on a HPtx1000. Everything was working fine but recently when I boot up I don't get a login ...
0
votes
1answer
849 views

Ubuntu 13.04 returns to login screen when logging in & update problems

In an attempt to fix the problem, I uninstalled lightdm and gdm is now the default. But I experience the same problem with gdm. When I try to reinstall lighten, I receive: WARNING: The following ...
4
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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 ...
3
votes
1answer
2k views

Black Screen on Login 12.04.3

I've recently installed a fresh version of Ubuntu 12.04.3 Desktop. At login screen, everything is black except for my mouse cursor and blinking underscore at top left. I can hear the Ubuntu startup ...
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0answers
83 views

Why this upstart job is preventing lightdm from shutdown or restart my notebook?

in order to have a permanet ssh tunnel running I set up the following upstart job in /etc/init/ssh-tunnel.conf: # ssh tunnel - simple personal ssh tunnel description "simple personal ssh tunnel" ...
2
votes
1answer
892 views

Why I cannot shutdown or reboot from lightdm?

I am unable to reboot or shutdown from lightdm. When I click on the button "Shutdown" or "Reboot" in the pop-ups simply nothing happens. I cannot find nothing wrong in /var/log/lightdm/lightdm.log ...
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votes
2answers
1k views

Changed my display manager to lightdm-gtk-greeter. Now I can't login

Last night I edited the default-display-manager file and changed my default display manager from lightdm to lightdm-gtk-greeter. Then I edited the lightdm-gtk-greeter config file and changed the ...
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0answers
605 views

Ubuntu Opens in Black Screen Using Lightdm But Working When Using GDM

Last time I installed lm-sensor (a package to know CPU Temperature) and restarted my system. $ sudo apt-get install lm-sensors $ sudo sensors-detect $ sudo service module-init-tools ...
3
votes
4answers
2k views

Not able to login through GUI in Ubuntu 12.04

I'm unable to login through GUI. On typing the correct password, I get a black screen and back to login screen. However, when tried with tty1 I was logged in. Then I tried reinstalling lightdm and ...
1
vote
1answer
160 views

Can't resume after hibernation

I tried to hibernate using pm-hibernate but when I start Ubuntu again I can't get to login screen.but when i tried to login lightdm keeps restarting and keeping me from login . please help me? I'm ...
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0answers
43 views

Getting a blank screen with the mouse when i re-log in

10 so any help you can give will be very useful I'm using an HP G62 laptop with intel HD Graphics card and an intel i3 Quad-core processor. When i first boot my laptop, i can login just fine and work ...
8
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1answer
4k views

How to add 'awesome' selection in LightDM?

I installed awesome using apt-get, and after installation finished, I logged out to lightdm. But there is no selection for awesome, only Unity and subtle (since I recently installed subtle). What ...
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0answers
138 views

lightdm login screen disable mirroring

By default, on a dual monitor setup lightdm seems to mirror the monitors on login. Is it possible to configure the lightdm so that it enables both monitors but only shows the login screen on one of ...