0
votes
0answers
41 views

LDAP authentication: not able to login through GUI but able to login from console

I am building a LTSP environment with LDAP authentication. I have configured the LTSP,LDAP server and client perfectly. I checked with getent passwd command in LTSP/LDAP client. I can see my LDAP ...
1
vote
0answers
29 views

How do I adjust DPI in 12.04

I think that I want (need?) to adjust my DPI. Qualitatively, text is very small and I usually find myself increasing text size in text editors, web browsers, etc. Quantitatively: The 1" square here ...
0
votes
1answer
38 views

Problem with changing login screen

I tried several time to change my log in screen by using sudo dpkg-reconfigure lightdm. I choose lightdm from here. But my log in screen is unchanged and look like below. How can I change this and ...
0
votes
0answers
22 views

restarting lightdm in ubuntu 12.04 fails

I am running a laptop with Ubuntu 12.04. At work I have a 1080p monitor I attach via HDMI. I notice that if I am at home just working with the laptop screen and then put the laptop to sleep (just by ...
1
vote
0answers
43 views

Monitor stays black after plugging it in

I am running Ubuntu 12.04 on a PC using lightdm. When I have the monitor plugged in from the start the system boots just fine and everything works as expected. When I plug off the monitor, the system ...
0
votes
0answers
39 views

Close lightdm and return to prompt (Ubuntu 12.04)

My server is configured with Ubuntu Server 12.04 and Lubuntu Minimal. I have grub set to show only text upon boot. When I must use the VNC I either use my VPS's recovery VNC or I enable the VNC ...
0
votes
0answers
31 views

Stuck in TTY, lightdm error?

Im running Ubuntu 12.04 on virtualbox. I just updated to the latest version of virtual box, reinstalled any new guest additions, and all hell broke loose. Fist Ubuntu would restart in what I later ...
0
votes
1answer
257 views

ubuntu 12.04 graphic error on boot after update from 10.04

After an update to ubuntu 12.04 from 10.04, I have a strange problem: in grub menu if I select ubuntu kernel 3.2.0-58-generic the graphical interface just hangs there, I get this black screen with a ...
0
votes
1answer
85 views

Ubuntu 12.04, 13.04: Cannot login to account returns to login screen [duplicate]

Question In Ubuntu 12.04 and 13.04 (and probably 13.10) I made some changes to my graphics settings. After rebooting when I attempt to login to my account the screen flashes black the bounces me back ...
0
votes
0answers
310 views

Nvidia 331.20 X server not starting in lightdm

Before installing the new Nvidia 331.20 drivers on my Ubuntu 12.04 32bit I decided to update the kernel to 3.12.6 then I start to run the Nvidia update script. So I switched to terminal mode turned ...
0
votes
1answer
53 views

How to enable unity-greeter in Ubuntu 12.04?

If you want a different session for the default, you can modify this option. Manually add the following line in the [SeatDefaults] section of (sudo gedit) /etc/lightdm/lightdm.conf: [SeatDefaults] ...
0
votes
1answer
125 views

black screen on booting

I've been working with Ubuntu on my lenovo for awhile. after heavy using I started to face the black screen when I reboot. Cursor at the top left blinking with the sound of rebooting. I still see the ...
0
votes
4answers
1k views

How to uninstall lightdm?

I removed Unity from my computer. But still lightdm is showing when I typed sudo dpkg-reconfigure lightdm. I want to remove it. What can I do?
0
votes
1answer
171 views

How to reconfigure lightdm? [duplicate]

Last night I installed KDE. But then however my Desktop manager changed into KDM. How can I go back to my default Desktop manager lightdm??
2
votes
0answers
116 views

Lightdm crashes at seemingly random intervals

I installed ubuntu 12.04 LTS around a month ago, and it's a great experience. Except for one thing: Lightdm crashes at seemingly random times, on average 2 times on a normal working day. I have no ...
0
votes
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 ...
0
votes
0answers
423 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: ...
0
votes
1answer
94 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
votes
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). ...
2
votes
1answer
1k 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 ...
0
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 ...
2
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 ...
3
votes
0answers
852 views

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, ...
0
votes
2answers
724 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 ...
1
vote
0answers
145 views

Close Lightdm in Ubuntu 12.02

Should I install original Nvidia drivers, for my Nvidia 8200. When i start installation, it asks me to close xserver. Only way to close it is use the command : "sudo service lightdm stop",because, ...
1
vote
0answers
104 views

Problem at boot while starting lightdm

Since some days I'm having the following issue. When system try to start X to run lightdm it fails, the displayed window says that the system seems unable to recognize all the devices, after that it ...
0
votes
0answers
23 views

sent to greeter when shutdown/reboot

Firstly I apologize if this is a duplicate as I have searched for a while with no luck both on here and using google itself. My problem is that whenever I choose shutdown or restart from my unity or ...
1
vote
2answers
3k 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 ...
1
vote
0answers
641 views

Black screen after Ubuntu loads (LightDM)

So, I have this problem, LightDM doesn't appear, after Ubuntu 12.04 loads, it shows a black screen with a white bar on the command line. I know the problem is LightDM, because last time I used Ubuntu ...
0
votes
0answers
247 views

How to make unity-greeter the same as desktop background?

I wanted to change the background for my login screen some time ago. So I followed the steps here: How do I change the wallpaper in LightDM? But now I to set it back so that unity-greeter will have ...
2
votes
2answers
4k 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 ...
0
votes
1answer
666 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 ...
0
votes
1answer
2k views

vnc using lightdm and x11vnc disconnects immediately after valid login

starting with a precise 64-bit server install, I configured the following; sudo apt-get install lightdm x11vnc sudo dpkg-reconfigure lightdm in /etc/init/x11vnc.conf, I placed; start on ...
0
votes
1answer
908 views

Ubuntu 12.04 i have removed lightdm

My problem began when I have restarted my laptop after I have installed a new GUI, I have Ubuntu 12.04 with ATI mobility HD 5470, but all was fine and working good. On my Ultimate Edition 3.4 I have ...
0
votes
1answer
157 views

Can't compile unity-greeter-13.04.1 on Ubuntu 12.04

I downloaded the unity-greeter-13.04.1 from https://launchpad.net/unity-greeter. Now I want to compile it to able to install it on my Ubuntu 12.04. But I face below problems while compiling: ...
0
votes
1answer
500 views

Lightdm-gtk-greeter's background wallpaper is distorted in Ubuntu 12.04 (How I can correct background wallpaper errors in “lightdm-gtk-greeter”?

Changed my settings into "lightdm-gtk-greeter" to be able to select different languages at login each time I wish. Everything is fine with my PC. It logins correctly after a while with an exception ...
2
votes
2answers
542 views

switcheroo to discrete turns off backlight on laptop screen

AMD cedar/ Intel ironlake hybrid graphics. Custom kernel 3.8.3. Free radeon xorg drivers. When I switch from integrated to discrete, I do a killall lightdm and X doesn't automatically respawn like it ...
4
votes
1answer
276 views

low graphics mode error only during shutdown

I'm getting the message: "The system is running in low graphics mode. Your screen, graphics card and input device settings could not be detected correctly. You will need to configure these yourself." ...
1
vote
0answers
111 views

Cannot Login to My Machine Using the *Right* Password

Here are the facts: I ran some stress-tests last night. I forgot to reset the logs to minimal. When I got this morning, I saw that hard drive is full /dev/sda1. Cleaned up the large file (350GB). ...
0
votes
1answer
315 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 ...
4
votes
3answers
438 views

Logout scripts: not completed on shutdown, reboot

I'm trying to do some stuff at logout, and the task can take up to 5 minutes to complete. If the user chooses Power off or Reboot directly, the script is killed before completion. If the user just ...
1
vote
0answers
278 views

Device is busy error when trying to unmount tmpfs home area

I have been trying to get pam_mount to mount a tmpfs drive for domain users, so that it is volatile storage and is cleared on every logout. The problem I found was that although the area would mount ...
0
votes
1answer
513 views

KDE overrides lightdm logon screen [duplicate]

Possible Duplicate: How do I install KDE and retain LightDM as a login manager? I upgraded my KDE desktop and suddenly it overrode many parts of unity user interface such as menus, icons, ...
1
vote
0answers
124 views

triple screen setup with 2 nvidia graficcards fails - Lightdm doesn't feel responsible for the third screen

I have 2 videocards a quadro FX 380 and a Geforce 580. I want to connect 2 1920x1200 and a 2560x2540 screen to it. I use precise and the xswat PPA with newest nvidia proprietary drivers. The built-in ...
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? ...
9
votes
2answers
3k 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 very short period of time (approx 0-2 minutes) gnome shell becomes unresponsive. Hovering on the ...
1
vote
0answers
40 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 ...
4
votes
1answer
557 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 ...
1
vote
0answers
51 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 ...
4
votes
1answer
620 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 ...