Questions about the login screen, specifically customizing/troubleshooting it.

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1
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0answers
61 views

Trying to change desktop environment but stuck on log in screen.

Im currently running lubuntu and was trying to try out gnome. now im in the log in screen and changed it to gnome in the top right hand corner. I proceed to log in but the screen goes black and the ...
6
votes
3answers
282 views

How can I make the login screen appear instead of logging me in automatically?

My ubuntu logs me directly into my desktop, but is not showing the login screen. I have 14.04 LTS so I want to select KDE, but my system boots to the desktop directly. Any way to go to the login ...
0
votes
2answers
59 views

unable to login after removing guest account

Hello i try to disable the guest account in ubuntu 14.04 by typing these commands sudo gedit /etc/lightdm/lightdm.conf allow-guest=false After re-staring ubuntu it boot up but dos not go to ...
0
votes
0answers
41 views

14.04 LTS Login Failure on VirtualBox

I cannot login to Ubuntu 14.04 LTS. I just set my JAVA_HOME. Then i restarted my Ubuntu which is on Oracle VM VirtualBox Manager. When i typed wrong password, it gives me error. But when i typed ...
0
votes
1answer
56 views

Unable to login into any account

How it happened My computer was becoming very unresponsive and I could not close any applications to free memory so I held the power button until the computer turned off. When I turned it on ...
0
votes
0answers
12 views

I keep getting kicked back to the login screen after fresh install [duplicate]

I have a separate home partition and recently installed Ubuntu 14.04 on another partition than the one I originally had installed 14.04 on,as it had got too slow. Now, whenever I try to log in, it ...
0
votes
0answers
17 views

Login Screen half black

first time asking something in here, usually I search a lot before post but this time I've not found anything related to my problem I've been trying to change my login screen background and after ...
0
votes
0answers
39 views

Password passes through login screen to active desktop window

I get to my computer. Shake my mouse and the Ubuntu login screen shows up. I start typing my password and nothing happens. I click enter. (Since I do this without thinking) I notice the focus in the ...
-1
votes
1answer
76 views

ubuntu throws me back to login screen

When I try to login to my system I am automatically thrown back to the login screen.I tried ctrl+alt+f1 but I got an error named 'signature error' Please help.... I'm using Ubuntu ver 14.04
-1
votes
1answer
62 views

Change keyboard layout in gdm

I just installed ubuntu-14.04, and during installation I chose two keyboard layouts: En-us and Ru-ru, and created user with en-us login/password. It successfully installed. When it loads the login ...
0
votes
0answers
222 views

Unable to login into Ubuntu 12.04 LTS, bounces back to login screen

I do understand this is a common problem. I have read and tried most of the suggestions but have not found a good solutions. Thus I am posting my question. Enter the correct password, the computer ...
0
votes
0answers
69 views

Login screen getting hanged after it wake up from Suspend, unable to enter password

Also the background of login screen (after suspend wake-up) is different from screen I get after Restart/Shutdown. Every I need to restart the system after suspend. Please help me to solve this. I ...
0
votes
0answers
47 views

System Froze When Upgrading From 12.04 To 14.04. I Can't LOG IN!

I was using 12.04 LTS well. Some minutes ago, I wrote sudo update-manager -d to console and started to updating. It download update files and started to upgrade system. When it was going on, "Home" ...
1
vote
0answers
87 views

unity-greeter login background won't change according to the user that is highlighted

I use Ubuntu 12.04. Recently, I change to use another Accounts Service which could remove certain users from the graphic login screen of unity-greeter. I downloaded source code from a branch of ...
0
votes
0answers
64 views

How do you change keyboard layouts from the login screen in Xubuntu?

I've set up multiple user accounts in Xubuntu 14.04. I (the admin) am a dvorak user so I have English US dvorak as the default layout, but the other user is a qwerty user. I've added English US ...
0
votes
0answers
35 views

Login screen very slow in ubuntu 12.04 LTS

I have ubuntu 12.04 lts 64bit and my mouse in the login screen is very slow. I have seen this link it did not work for me. How can I fix this issue?
2
votes
1answer
424 views

Cannot login after update to Ubuntu 14.04

After I updated to Ubuntu 14.04, I am not able to login to Ubuntu. Whenever I enter my password, my screen flashes for a couple of seconds and goes back to the login screen. I have tried over and ...
0
votes
1answer
92 views

Is there a way to disable portrait/login picture display in the Xubuntu login?

I recently upgraded a machine from XUbuntu 12.10 and now the login screen has a blank silhouette that looks like the Facebook empty profile picture. How do I disable this and get back to just username ...
1
vote
0answers
176 views

dual monitor/projector login screen

if have a dual "monitor" setup, where one of the monitors actually is a projector. the projector is not always turned on. the problem is, that the login screen quite often is not visible and the ...
0
votes
0answers
17 views

Login Ubuntu source code [duplicate]

I'm Brian, I like to see the source code of the login screen but I don’t know how I could enter to so the source code and see this part. Because I want to make a app. Thanks for their help.
0
votes
0answers
562 views

Ubuntu Gnome 14.04, change resolution on GDM login screen/system wide?

Under Ubuntu Gnome 14.04, Gnome 3.12, I'm running with a different from my maximum resolution. After login, the resolution is set fine, and when I log in after locking the machine, the resolution is ...
-1
votes
1answer
74 views

I am unable to login after an update [duplicate]

10th of June i've made an update and now I'm no more able to login. Unfortunately I don't know wat was included in this update. My PC looks like logging in, but, after a few seconds, it comes back to ...
0
votes
0answers
13 views

Automatically run a command after unlocking screen/wake up? [duplicate]

Is there an easy way to make Ubuntu run a specified command each time I unlock the screen (after an overlay with password prompt dissapears)?
0
votes
2answers
43 views

Is adding a user needs password [duplicate]

In my Ubuntu after login by my user account, I want to create another user I intered bellow commands : adduser alex_2 -m I created new user, but when I want to login, Ubuntu needs passwords and I ...
3
votes
3answers
757 views

After locking the screen in Ubuntu 14.04, password is not accepted, How can it be fixed?

I'm running Ubuntu 14.04 fully updated on my laptop. Since the last update every time I lock the screen (when leaving my room for example) - when I get back and input my password, it is not accepted ...
0
votes
1answer
108 views

cannot unlock login screen 14.04

When my computer boots, entering the correct password won't start my session. I found out the problem is /home/user/.Xauthority ownership. root owns this folder and giving the ownership to the user ...
1
vote
0answers
886 views

Ubuntu 14.04 stalling with black screen w/ white cursor [closed]

The system will get to the Plymouth 'ubuntu' screen, load load, all dots filled, switches over to LightDM, but wait! No LightDM. :I Just a blank screen with that white cursor. Can't switch out to ...
0
votes
2answers
115 views

Shortcut keys for changing input source not working in Login screen

I use Shift+Alt shortcut to change the input source language and it works fine everywhere except the login screen, and when waking up from suspend. Is this a bug or am I missing something? I am using ...
0
votes
0answers
91 views

Ubuntu 14.04 boots fine, but video output stops at login screen

I'm running Ubuntu 14.04 on a DELL R320. I have no 3rd party drivers enabled. Machine boots normally, but when the login screen loads, it flashes momentarily and disappears and the monitor says ...
1
vote
0answers
39 views

Is it possible to login into lightdm interactive screen remotely?

I have this big Ubuntu desktop that dubs also as a home cinema PC. When I feel lazy, I'd love to be able to run the PC remotely and watch movies from my bed. I can turn it on via WoL. I can launch ...
0
votes
1answer
31 views

New to Linux screen problems after login

I am new to Linux just installed on Compaq with a hard driver that is completely clean. After I installed and booted up every thing works till I login. When I login the screen goes blury where I cant ...
0
votes
0answers
77 views

Set global / persistent display resolution

I am trying to set resolution to 1024x768@60hz from boot -> login menu -> default desktop settings for user accounts. My system is connected via HDMI to the display, video card details (from lspci): ...
0
votes
0answers
70 views

Gromacs configuration in Ubuntu

I installed Gromacs 4.6.5 in Kubuntu 14.04.. After installation if everything went right, by writing luck into terminal we should get a quote, according to this link: But I get error like luckcommand ...
0
votes
1answer
89 views

swich from ubuntu (unity) lockscreen/login to gnome

I have Ubuntu GNOME installed on my pc and I also installed the unity shell, the problem is I seem to have lost the GNOME login screen and lock screen, is it possible to switch back from the new unity ...
0
votes
1answer
102 views

I've broken lightdm

I've installed xubuntu-desktop metapackapge on my system and afted this action unity-greeter has gone away. Ive purged lightdm twisely, then installed lightdm and unity-greeter. But still no result. ...
0
votes
0answers
72 views

Black blank screen after restarting, but after logout the screen resumes to the way it was

I have recently installed Ubuntu 14.04 then following some webpages from internet i tried o install a couple of softwares including - Gnome by sudo apt-get install gnome-shell ubuntu-gnome-desktop ...
0
votes
0answers
220 views

Ubuntu black screen 14.04 [duplicate]

I was using ubuntu 14.04 for about 2 days now, and i restarted my pc (lenovo yoga 2 pro) no problems about the screen so far, chose Ubuntu from boot menu, Kubuntu logo shows up, screen goes black, ...
0
votes
0answers
80 views

Login screen is frozen on Ubuntu 14.04 LTS

I am running Ubuntu 14.04 LTS on my HP Pavilion desktop. It works perfectly at the first login. And when I try to log in back after a successful logout, then the login screen freezes. I cannot enter ...
0
votes
0answers
121 views

Can't login my account in Ubuntu 14.04. after ZSNES emulator froze. Guest season works fine

I've played the zsnes emulator and the game froze after one hour. Since nothing else worked besides ctrl+alt+f1 I had to reboot the system. After trying to access my account from the login screen it ...
0
votes
0answers
76 views

What does “unknown code ovk 48” mean?

When I log in after update from 13.10 to 14.04, lightdm and gdm display unknown code ovk 48, I can log in without problems (lightdm requires that I press return after the message is displayed). ...
0
votes
0answers
52 views

Cannot log in (entering correct password)

I'm having problems with logging in. Entering the correct password brings me back to the login screen. When I login to a TTY, I can't use sudo. I get an error like this: SUDO:effective uid is not 0 ...
2
votes
2answers
1k views

Black screen on login maybe lightdm problem

Hi after I entered this command in terminal: sudo sh -c 'echo "greeter-show-manual-login=true" >> /etc/lightdm/lightdm.conf' and I reboot my PC i cannot login to ubuntu. After i select the os ...
1
vote
0answers
39 views

Ubuntu login screen doesn't show up after cleaning NVRAM on a mid-2009 Macbook Pro

I have a macbook Pro mid 2009, with three partitions : OSX 10.8.5, Ubuntu 13.04 and Windows 7. EFI and GRUB are here, first EFI boots with offering the choice of the three systems then, if Linux or ...
0
votes
0answers
78 views

Login screen changed

Suddenly the login screen for ubuntu 14.04 is switched to another one with a box has a drop-down user change and password field. Only the standard dotted background one is visible when I go Suspend. ...
0
votes
0answers
17 views

Ubuntu initiallisation [duplicate]

I have a problem with Ubuntu 14.04, but I don´t know too much about computers. Two days ago, I updated my version of Ubuntu 12.04 to 14.04 and today, I tried to enter with my username and my password. ...
1
vote
2answers
491 views

lost ubuntu 14.04 default login screen

After trying to upgrade to gnome 3.12 unable to upgrade// uninstalled gnome 3.12 however lost ubuntu 14.04 default login screen Plz help
0
votes
0answers
96 views

Input Language doesn't change on login screen

The input language doesn't change on login screen on Ubuntu 14.04 when I press the key combination to change the language.I have to do it manually using the mouse.Is this a bug or is there a setting ...
0
votes
0answers
10 views

With lauch icons on left, part of dialog falls of screen to right [duplicate]

As a very new user of Ubuntu I find that loss of a strip of text on the right caused by the permanent display of the icons left side vertically to be a nuisance. Is there any way these icons can be ...
0
votes
1answer
96 views

Ubuntu 13.10, after update login loop

So, today I update some packages and then I shut it down. When I turn it on, it ask for a pw (I had automatic login). Tried several things, removing .Xauthority, .cache and .ICEauthority, check ...
0
votes
1answer
413 views

Ubuntu login screen wallpaper missing 14.04

I am new to Ubuntu and I tried to change my login screen wallpaper by using terminal according to this: Changing login screen wallpaper in ubuntu 13.04 At this time I did not know about ubuntu ...