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

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6
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1answer
2k views

lightdm doesn't run the display-setup-script script

To fight with dual-monitor resolution problems, I followed the advice found in other questions here related to session- and display-setup-script. I have the following /etc/lightdm/lightdm.conf: ...
15
votes
5answers
34k views

After logging in, there's a black screen and my cursor, nothing else! in Ubuntu 12.10

I've been using Ubuntu(12.10) for a long time, and recently, my Ubuntu went through yet another update. The whole update prompt showed up, following by a password prompt, and finally the good ol' ...
2
votes
0answers
60 views

Clean install of 12.10 - reused 12.04 /home. Cannot start unity/login for legacy/imported user [duplicate]

I have separate disks for / and /home. I did have 12.04 installed but decided to do a clean install (format and install) of 12.10. I created my user at install. I should be able to login, right? ...
1
vote
0answers
429 views

Lubuntu 12.10 lightdm Issues - PowerPC

I have a PowerPC G4 with two drives (one running Mac OSX server) that I would like to install Ubuntu on, however I am attempting to boot from a livecd first, to check that everything works correctly. ...
2
votes
4answers
19k views

“the system is running in low graphics mode” I get this message when I boot my ubuntu

I had got into a serious problem while solving my the system is running in low graphics mode using this link. This guy and I have almost same Nvidia card. Mine is just bit more newer, so when I was ...
0
votes
1answer
337 views

LightDM freezes at first startup

Nearly every time I bootup my Ubuntu I come to the login screen. But instead of showing me the wallpaper from selected account, I just see the default purple background with those white dots on it. ...
3
votes
1answer
516 views

Choose lightdm login screen location in multi monitor setup

How can I set the location for the login screen with lightdm in a multi monitor setup. If have two monitors (1920x1080) + (1920x1200) and currently after I boot the login is shown on the left ...
9
votes
2answers
4k views

Gnome 3 always hangs after logon

The problem I'm having is that after logging into GNOME Shell 3.4.1 on Ubuntu 12.04.1 LTS. After a short period of time (approx 0-2 minutes) gnome shell becomes unresponsive. Hovering on the corner ...
2
votes
0answers
44 views

How do I change the startup sound? [duplicate]

Possible Duplicate: How do I change the start up sound? Note: This is not a duplicate. The above question refers to the sound played at login and not the sound at the login screen. Is ...
6
votes
1answer
685 views

Run conky over LightDM

Is it possible to have my conky gadgets run over my lightDM login screen? If so, how would I go about this? I saw someone doing it with XDM under debian in this screenshot from a thread on the ...
6
votes
1answer
1k views

Lightdm-too many desktop envirements

Today I tried to play with LXDE. After installing I go to login screen and try to select LXDE from list of avaible DE, but I can't select OK after that. . I know this is bug, but maybe somebody can ...
3
votes
2answers
7k views

“/etc/X11/X not executable” error when startx

What happened I wanted to install KDE and Gnome along with Unity. I don't know when I installed gnome-shell on my Ubuntu 12.10, but I installed KDE minimal desktop just now using sudo apt-get ...
1
vote
1answer
912 views

Ubuntu 12.04 is stuck in lightdm login (Unity Greeter)

The login and Unity Greeter is working. However, if I try to log-in - in a matter of seconds, it would return to the login screen. This happened when I tried to install a package and I restarted my ...
2
votes
1answer
1k views

Problem with LightDM & KDM

I'm a Kubuntu 12.10 x86_64 user. I recently found an exquisite KDM theme on (name of KDE artwork site). However, as the default display manager in Kubuntu is LightDM, I installed KDM with: sudo ...
0
votes
0answers
44 views

Jumping Login Box after Lighdm Multiple Monitor workaround

So I used this workaround to sort my resolution at the login screen when using multiple monitors with Lightdm. #!/bin/bash XCOM0=`xrandr -q | grep 'VGA1 connected'` XCOM1=`xrandr --output LVDS1 ...
1
vote
0answers
164 views

LightDM. Run commands before xmonad is started

I have XMonad installed from package manager and Ubuntu 12.10 with LightDM. How can I interpose the loading process to run my own script before xmonad is started? For example, I would like to setup ...
4
votes
2answers
4k views

Need restart lightdm at every startup - console login screen

Everytime I boot up my ubuntu 12.10, I get a black console screen. I need to login in tty, and restart lightdm : sudo service lightdm restart Then the GUI lightdm login screen appears as expected. ...
2
votes
1answer
151 views

lightdm execute script as user

At our computer department we need to run a script with user rights wenn the user logs in. Adding the script to .config/autostart is not an option since the script must not be disabled by the user. ...
1
vote
1answer
150 views

How to use pam_blue with lightdm, and unity-greeter?

I want lightdm to skip asking for my password if my phone is nearby. How is that possible with lightdm, and unity-greeter? Also I'm interested in knowing whether its secure, because it doesn't seem ...
0
votes
1answer
320 views

Broken NVidia X driver

Today I installed the daily updates and then a funny thing happened... I was playing Morrowind on Wine, and in the game I tried to navigate to the video settings menu to adjust the brightness. I had ...
3
votes
2answers
1k views

Xubuntu LightDM shows blank screen half the time [closed]

System info: (will be amended if any more info is asked for) My laptop runs Xubuntu 12.10. As it has a Solid State Drive, /tmp, /var/tmp, /var/log and /var/log/apt are set to tmpfs in the /etc/fstab ...
2
votes
2answers
405 views

How do I remove the unity 2D option in lightdm (login sceen) in ubuntu 12.04?

Because I wish to view my full username at login, I want to remove the "Unity 2D" option at the login screen. Currently the last part of the username (after the 20th digit) is hidden behind the ...
4
votes
1answer
651 views

Ubuntu 12.04 takes long time to show desktop

I am creating an application by customizing Ubuntu 12.04. And i'm using remastersys to create its backup to be distributed, the customizations are, My Application (Java) installed Postgresql ubuntu ...
0
votes
1answer
141 views

Login takes very long, annoying repaints once a minute when logged in: How to troubleshoot?

I am suffering from a strange problem with my Gnome Shell in Ubuntu 12.10. The login takes very long (> 30 sec), with a blank screen. In Google Chrome and Thunderbird (and perhaps in other ...
1
vote
0answers
55 views

how do i check available displays

When you know what display you want apps to start by default you would do something like: export DISPLAY=localhost:0.0 But suppose miss daisy, which is a frisky windows user that is giving linux a ...
59
votes
15answers
86k views

Ubuntu gets stuck in a Login Loop

My problem: As you can guess my Ubuntu is stuck in a login loop when trying to enter my desktop. Means the screen gets black and soon after that the login screen comes back. I'm a Ubuntu Newbie so if ...
1
vote
1answer
328 views

Can't login after forced shutdown

I am on ubuntu 12.04 and forced a shutdown (hardware switch). Now I can't login anymore. In particular, after entering my password I get sent back to the login screen. The error message is to fast for ...
6
votes
2answers
1k views

Switching desktop environment from Unity?

Basicall I have installed a few desktop environments. And if you are familiar with Unity, you know that the way switching works, is you get this sort of drop-down with all the environments installed, ...
3
votes
0answers
423 views

Lightdm not working at all since bumblebee install!

I'm relatively new to Ubuntu, so please excuse me if my question is stupid... So a few weeks ago, I bought a Gigabyte U2442N with Optimus Graphics (a 640M and a HD4000). I installed the stable ...
2
votes
0answers
202 views

lightdm - enable 3 and then 4 monitors

I've just completed a Ubuntu 12.10 server build on a HP XW8400 desktop with 2 x GeForce dual head DVI gphx cards. On the build bench I had 1 monitor connected & worked perfectly. 1920x1200 ...
2
votes
1answer
198 views

hibernate after timeout in lightdm

Is it possible to set up lightdm to hibernate after, for example, 5 minutes without human activity? Only in LightDM without this behaviour after login? I whant to be able just logout to lightdm by ...
0
votes
1answer
415 views

custom session in lightdm “chrome os”

am do this sudo gedit /usr/share/xsessions/chromeos.desktop and i file: [Desktop Entry] Encoding=UTF-8 Name=Chrome OS Comment= Exec=google-chrome --standalone Type=Application in this way am ...
4
votes
1answer
760 views

Unable to sign in. How to debug?

I had to reboot system with reset button. After reboot I can't sign in. When I enter my password It seems like X-server just restarts. I can sign-in as guest and also I can sign-in in text TTY. Here ...
0
votes
1answer
199 views

What is this 'X' command (with paramters) that uses 24% cpu? [duplicate]

Possible Duplicate: What is process “/usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none”? This is using about 24% of my CPU's resources. /usr/bin/X ...
1
vote
1answer
2k views

How do I get back the Unity login screen after installing gnome-core?

I installed gnome-core and now I have an ugly login screen. I want to reset or delete gnome-core and re-install the Unity login screen, or just switch back to LightDM. Is there any way to do it easily ...
2
votes
1answer
159 views

Launch a program when X starts

I want to launch a program when X (not unity/gnome/etc) starts. In particular, I want to launch xset r 105 when lightdm starts. Is there a way to do it? I tried writing this into ~/.xsessionrc: ...
2
votes
2answers
2k views

How to edit lightdm to show “other user”?

I am an IT student aide at a college and we have a very small test computer that we started messing around on with 12.04 and used likewise to join it into the Windows network that we have. However, ...
1
vote
2answers
186 views

Cannot log into admin account

I saved a command that would hide the accounts other than the admin into the lightdm file and it chose to keep an "other" account for which I don't have the password. I cannot open the terminal from ...
1
vote
0answers
229 views

How do I speed up initial login?

The initial login on my Ubuntu 12.04 machine can take anywhere from 45 seconds to two minutes. If I log out, then log back in again, the login time takes between 4 and 7 seconds. How can I find out ...
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 ...
1
vote
0answers
59 views

(Easy Question) Start X and Unity from Console [duplicate]

Possible Duplicate: How can I set my Ubuntu 12.04 LTS to boot to console without GUI? A lot of questions without response. This thread is like this two: Start X and Unity from the console ...
1
vote
2answers
2k views

How to change font size of the login screen?

I had installed Ubuntu 12.04 on my netbook with maximum resolution of 1024x600, I upgraded to ubuntu 12.10. occasionally I use other GUI because it is more comfortable to me for certain tasks. since I ...
3
votes
2answers
2k views

How to make users with UID under 1000 appear in LightDM?

I've been trying to set this up, but I can't find a solution. It's neccessary, because the machine Ubuntu is on is a Macbook and needs to have access to the files of the Mac user. Is there any way to ...
2
votes
0answers
575 views

Is there a way to use LightDM and Unity but get a lock screen like GDM in 12.10?

I like the GDM locked screen theme a lot! But even if i set GDM as the Display Manager but log in to Unity session,the lock screen remains that oh LightDM... I want to use LightDM as my login Display ...
1
vote
1answer
2k views

How can I login to lightdm with password for fingerprint-enabled user after 12.10 upgrade?

Sorry for the long question. I have a laptop with ubuntu quantal 12.10, a fingerprint scanner, and a few active user accounts. When the machine boots up to lightdm, I get a prompt toenter my ...
7
votes
8answers
14k views

Desktop login fails, terminal works

I have a freshly setup 12.04 LTS pc system (120 GB SSD, 1 TB HDD, 16 GiB RAM); since a few days, I can't login to the graphical desktop anymore: there is very short flashing shell window which ...
2
votes
2answers
870 views

GUI is not displayed anymore

I am running 12.04 LTS on a VM. I encountered a problem with the screen being black and the familiar orange background showing for a fraction of a second when clicking or resizing the screen. I had to ...
5
votes
0answers
346 views

When will the Unity Greeter begin to look like the propositions from the Design Team? [closed]

The Canonical Design Team gave a rather beautiful login screen mockup for the unity greeter. These designs, in my opinion far exceed the current UI that we have for Quantal (which I think is worse, ...
3
votes
0answers
384 views

How to get 12.04's login screen (lightdm) to display the shutdown menu like 10.04 when the computer's physical power button is pressed?

In Ubuntu 10.04 while at the login screen (gdm), when the computer's physical power button was pressed a screen popped up that offered options on shutting down the system (shutdown, restart, cancel, ...
2
votes
1answer
774 views

Boot computer to text mode using kernel parameters

Referring to this question: How to remove the graphical user interface? The answer of modifying /etc/default/grub to have GRUB_CMDLINE_LINUX_DEFAULT="text" would be great, but unfortunately I don't ...