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

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0
votes
1answer
76 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
14 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
29 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
55 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
117 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
115 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
569 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
72 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
50 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
156 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
82 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
45 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
879 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
103 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
185 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
18 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
771 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
78 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
48 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 ...
5
votes
3answers
1k 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
125 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
2k 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
182 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
115 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
45 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
35 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
108 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
121 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
137 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
144 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
112 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
223 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
85 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
142 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
121 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
62 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
2k 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
51 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
84 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
709 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
111 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
111 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
461 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 ...
0
votes
0answers
72 views

Remove old LDAP users from login screen?

When using computers with LDAP users, once a user logs on to a computer, they are shown on the login screen in the user list. How can we remove old users or reset the cached list? We are not trying ...
1
vote
2answers
215 views

Difference between user account and guest account [closed]

I have a rather ancient computer (pentium 4 with a really awful monitor) that I have been running the Ubuntu inspired Elementary OS for the past year or so flawlessly. For some reason yesterday when ...
0
votes
1answer
384 views

User login screen shows only gnome flashback option in ubuntu 14.04

Hello i upgrade ubuntu 13.10 development branch and successfully installed ubuntu 14.04. but my problem is on user login screen.User login screen shows only gnome flashback option so how to get back ...
1
vote
0answers
58 views

User Login Screen is not asking for password

My laptop is no longer requiring a password for my account from the user-login screen. No matter what settings I change, it never asks me for a password unless I am unlocking the screen from a ...