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

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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 ...
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326 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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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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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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1answer
725 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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33 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 ...
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1answer
668 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. ...
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1answer
98 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 ...
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1answer
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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 ...
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3answers
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(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 ...
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106 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 ...
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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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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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1answer
846 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 ...
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1answer
870 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 ...
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2answers
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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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1answer
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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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1answer
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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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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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739 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 ...
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4answers
3k 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 ...
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196 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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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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1answer
546 views

Lubuntu: .desktop shortcut works on the desktop, but doesn't from the menu

I've created a simple shortcut.desktop in my Lubuntu 13.04 /usr/share/applications: [Desktop Entry] Type=Application Name=shockwave Icon=/home/zane/Pictures/Evil Decepticons.png ...
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4answers
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How do I change the login manager's keyboard layout?

I have a netbook with an AZERTY layout. I've changed it to "bépo" to try it, but now I've reset it to a french layout. While all the apps have taken the change into account, Ubuntu's login manager ...
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1answer
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Can't use lightdm-webkit-greeter

I'm trying to use lightdm-webkit-greeter instead of the default unity-greeter on Ubuntu 13.04. First I installed the greeter: sudo apt-get install lightdm-webkit-greeter Then I ran this command to ...
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1answer
314 views

Lightdm doesn't load on boot

I'm using Ubuntu 13.04 and since yesterday lightdm doesn't load on boot. Ubuntu loads normally but there is no UI just this cursor _ blinking. I tried in console(Ctrl + Alt + F4):sudo service ...
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1answer
429 views

How do I get the session option for KDE in the login screen? (installed kde-full)

I've installed the package kde-full in Ubuntu 12.10. As I know I should be able to switch to KDE on the login screen, after it is installed. However, I only see two options: Ubuntu 3D Ubuntu 2D ...
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1answer
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Ubuntu 12.04 Unity: Black screen with cursor only, when external display is connected before booting laptop

Whenever I connect an external display to the DSub port of my laptop before booting into Ubuntu, something goes wrong in Unity to cause the exact same problem as described here: After logging in, ...
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2answers
1k views

12.04 - Screen glitches / freezes after “Lock Screen”

Ubuntu 12.04, 3.5.0-36-generic kernel through LTS Hardware Enablement stack. HD4600 GPU on top of an Intel Core i7-4770. When I use the "Lock Screen" feature of the desktop, sometimes I will go back ...
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192 views

Close Lightdm in Ubuntu 12.04

Should I install the official NVIDIA drivers for my NVIDIA 8200? When I start the installation, it asks me to close the xserver. Only way to close it is to run the command : sudo service lightdm ...
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How can I revert ubuntu settings after gnome-shell install

I have Ubuntu 13.04 32 bit. Recently, I installed Gnome 3 because I wanted to try something new. It looked and felt awful, so I removed it via ppa-purge. Unfortunately, some of my setting were ...
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How do I kill the x-server?

Every time I try to kill the x-server, sudo service lightdm stop so that I can install the latest Nvidia drivers, I get an error message. stop: Unknown instance: What am I doing wrong?
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no login screen after 12.10 ubuntu update

i am running dual boot os machine including windows7 and ubuntu. few days back, i did update to 12.10 version, and at that time i was using gnome fallback desktop environment. while doing update, i ...
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2answers
106 views

How much is Ubuntu 13.04 related to/depends on Gnome?

I noticed that Ubuntu Unity (13.04) uses a lot of gnome related packages, even with no added stuff to its configuration. In a first install of Unity, I messed up with my configuration because I tried ...
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5answers
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Ubuntu 13.04 - can't login to Unity, keep going back to login screen with all users

today I've updated openssl and libssl (automatic update). After reboot I can't login with any user (even with Guest or new one) into X. I've tried with installing gdm, gnome-session-fallback - no ...
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1answer
131 views

Launch Chrome with a very minimal Window manager

So i'm setting up a box running Lubuntu and i want it to run a news website with Chrome browser on startup and with a very minimal window manager (no desktop icons,no panel...). Is there any way to ...
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1answer
535 views

Wrong resolution for Lightdm/GDM on Ubuntu 13.04 using HDMI

I've tried all the solution I could find on the matter so far, but the error persists. My problem is that the login screen (both under gdm and lightdm) runs with the wrong resolution, even though all ...
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2answers
5k views

login loop ubuntu 12.04

Today I restarted Ubuntu 12.04, after installing some packages and having updated firefox. When I came in the login screen, I typed my password. After about one second processing, the screen blacked ...
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1answer
176 views

No unity shell , no unity panel and no dual monitors

I did something terrible this morning you can see here. Now that problem was fixed , apt was working fine and so was the update manager . after installing all updates , I rebooted. And I could not ...
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1answer
1k views

Graphics problem on new lubuntu install

I've just install Lubuntu 13.04 32-bit on an old machine. When I boot, I essentially get no GUI. I have a cursor, and very poor 8-bit colour background, but no windows or buttons etc. I believe ...
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1answer
55 views

How do I change the caption of the “Login” button?

When setting up a user for login without a password (i.e., by adding the user to the nopasswdlogin group), a "Login" button appears in the LightDM screen. How do I change the caption on the login ...
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Cannot boot normally, without restarting lightdm (or gdm)

I had a problem precisely described here: http://www.webupd8.org/2013/01/ubuntu-lightdm-black-screen-when-using.html, black screen with blinking cursor instead of login screen. I've switched to gdm ...
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2answers
2k views

MDM doesn't automatically start

I just successfully installed mdm on 13.04 with this guide, replacing but not uninstalling lightdm: How can I replace LightDM with "MDM"?. However, when I first rebooted, I just got a blank ...
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1answer
3k views

How to install pantheon-greeter in 13.04 Raring?

Refer here: QUESTION Those are the exact step I did in my install - a raring x64 server install + all needed xorg packages to run a GUI + MATE 1.6. Basic lightdm + unity-greeter is flawless, as well ...
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134 views

GDM Starting Twice?

Lately, I keep getting booted into low graphics mode (using Intel, I don't have a xorg.conf) and when viewing startup errors it says "Fatal server error: Server is already active for display 0" This ...
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1answer
884 views

launcher, top panel disappeared and global menu & hud disabled

This morning, I removed all the unity-webapps-something and didn't pay attention that removing unity-webapps-service or unity-webappas-common required to remove other key packages: The following ...
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Some Thing Has Screwed Up My Desktop in 13.04 [closed]

Okay, Some thing or some app has screwed up my desktop... What Happens After Login is seen in the pic bellow - the login boxes stay as well as the dots OR a complete black screen comes up. And ...
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2answers
6k views

lightdm fail to start automatically after last update

I have 12.04 LTS, I don't think I installed anything extraordinary lately, (just uninstalled lxc-docker), but after last automatic update I am left with console. I can do service lightdm start and ...
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1answer
1k views

Failed to start greeter

After some pretty advanced configuration and kernel compilation, I've got EFI booting and Intel Graphics enabled on my MacBook Pro 8,3 and the ATI proprietary driver disabled in order to be able to ...