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

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0
votes
1answer
94 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
120 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
86 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
221 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
83 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
130 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
91 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
57 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
43 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
79 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
573 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
99 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
101 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
430 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
66 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
176 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
352 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
57 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 ...
0
votes
0answers
246 views

How do I install nvidia drivers in nomodeset?

Under the main question, "My computer boots to a black screen, what options do I have to fix it?", specifically under "Black/purple screen after you boot Ubuntu for the first time", the answer ...
1
vote
0answers
76 views

the screen amplifier not allow me to login on Ubuntu 14.04 LTS

I'm new on Ubuntu 14.04 LTS. Looking on its resources I choose the screen amplifier (kmag??) on login screen, and now I'm not able to login and neither turn off this resource. Could someone help me? ...
0
votes
1answer
925 views

Kubuntu 14.04 change login animation/splash screen

In kubuntu 14.04 settings there is the option for changing the login screen background, but there is no more the option to custimise the animation/splash screen after the login, while the desktop ...
0
votes
0answers
225 views

Ubuntu 14.04 LTS (Onboard in Login Screen)

I just installed Ubuntu 14.04 and everything went fine, I had 2 problems. 1- When I login, I get this annoying onboard keyboard, how can I remove it? I tried going to it's preferences but still. 2- ...
2
votes
2answers
5k views

Unity greeter does not display custom wallpaper

I am using Ubuntu 14.04 LTS 64 bit . I know this question has popped up many times but I want to make it very clear that none of the posts helped me a bit. my Problem: I am unable to get my custom ...
2
votes
1answer
1k views

Remote login on Ubuntu 14.04

On Ubuntu 13.10 in Login screen there was an option for Remote Login.Where is this option in Ubuntu 14.04?How can I enable it?
0
votes
1answer
32 views

No graphical login after purging Cinnamon

I wanted to try Cinnamon and installed it: sudo apt-get install cinnamon But it didn't work well, because all the gnome stuff was missing on my Kubuntu. So I purged cinnamon and rebooted. Now I can't ...
0
votes
0answers
87 views

How to increase or decrease brightness in the login screen when running within Virtualbox?

I can't able to increase or decrease screen brightness on the login screen. Is that possible to change brightness on login screen?
0
votes
2answers
3k views

Unable to login to 14.04 after successful installation [duplicate]

After a successful upgrade to 14.04, now when I am trying to login using administrator id, It loops back to login page and doesn't load my session. Even guest is not working. When I enter wrong ...
0
votes
0answers
126 views

Can't log in after I insert the correct password

I recently tried to upgrade to Ubuntu 14.04 from the command line but it didn't work for some reason. It was "upgrading" for about two hours and when I restarted my computer I still had 13.10. When I ...
1
vote
1answer
244 views

Main user login has no gui

After I upgrades from 10.04 to 12.04 I cannot login to my main users account. Before the upgrade I had created another administrative user but had never used that account with the gui. That other user ...
0
votes
1answer
50 views

No login screen on boot up

When I boot up my system it goes straight to my desktop without asking for my password on the login page. Instead there is a keyring prompt that comes up where I have to type the password. Any ...
7
votes
3answers
14k views

“Failed to start session” after interrupted upgrade to 14.04

While upgrading to 14.04 using sudo do-release-upgrade my network connection was interrupted and several packages failed to upgrade. Running do-release-upgrade again reported No new releases found ...
1
vote
2answers
2k views

Login loop 14.04 but guest account ok

After upgrading to 14.04 from 13.10 which worked fine, I cannot get past login as it just loops back. Guest account works fine. Can Ctrl-Alt F1 and use name and password ok there so not sure what is ...
0
votes
1answer
4k views

14.04 freezes on start and stalls on restart/power down [duplicate]

About 2 out of 3 times I power on my computer, Ubuntu 14.04 freezes when loading some stage of the login (lightDM) screen. I have to manually power off my computer. Also, when I go to restart or ...
0
votes
1answer
30 views

How to show old account on the greeter

TL;DR --> I want to know how to make an old account show up after reinstallation of Ubuntu so that I can log in to that account and not have to reinstall all the other software I had installed on that ...
2
votes
0answers
79 views

Select account based on password instead of username

Sometimes I might be forced to open my PC in front of strangers for some reason. In front of other people, I would like to make it appear that I'm logging in normally into my computer, but secretly I ...
2
votes
0answers
98 views

How do I rotate the login screen?

So I am trying out the 14.04 and I keep both of my monitors in portrait mode. But the login splash is in landscape. But I can't seem to figure out how to rotate my login splash or where the config is ...
0
votes
1answer
125 views

Any way to change lightdm unity greeter background without changing current config files?

About changing lightdm unity greeter background image, most answers are to change /usr/share/glib2.0/schemas/com.canonical.unity-greeter.gschema.xml. Is there any way to change the default wallpaper ...
0
votes
1answer
157 views

Change color of background on login screen

EDIT: I should mention I'm running Ubuntu 12.04 with Cinnamon, though I could switch to Unity to change, then switch back. Alright, so I changed the background on my login screen (the cheap way, by ...
0
votes
0answers
41 views

Startup stopped at Xinerama - normal?

For an unknown reason when I rebooted my computer it stopped working. I see it can start the graphics engine as it shows the looping cursor and I can even move it, but the login screen does not ...
0
votes
1answer
46 views

Unable to login from GUI?

Running 13.10 x64 on an Ubuntu laptop (System 76 Kudu Professional). When I bootup and provide my password; the screen goes black for a moment then returns to the login screen. Switching tty I am ...
1
vote
0answers
388 views

Ubuntu 14.04 - enable numlock on login [closed]

Numlock is not activated in lightdm: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1271953 Workaround for ubuntu 13.10 : sudo apt-get install numlockx gksu gedit ...
0
votes
2answers
76 views

Logon screen forever [duplicate]

My ubuntu is in trouble, I changed my graphic card, tryed some manipulations, and now I get some problems with the login-screen. I have the login-screen, normal, but when I type on password ( I am ...
0
votes
1answer
61 views

Login goes nowhere after upgrade to 13.10

After upgrading to Xubuntu 13.10 I rebooted once and found that after login, regardless of account, I end up stuck after the login window disappears, with a movable pointer and the background from the ...
0
votes
1answer
31 views

After installing system update I can't login to my user [duplicate]

At the login screen, I type my password, then hit enter and I see a quick black screen with some text, as if something crashed, and it goes back to the login screen.. Help?
2
votes
1answer
410 views

unable to type in password at login screen after restart? [duplicate]

I am locked out of my laptop after restarting it. When I am in the login screen, I have 3 options: me / registered user guest session remote login When I click on the password field/text box that ...
0
votes
0answers
200 views

How to solve high contrast problem?

I set high contrast on login screen in Ubuntu 14.04, after I restart system on login, the screen displays only black screen , so I'm unable to login . Could you please help me to turn off high ...
0
votes
2answers
111 views

Ubuntu 12.04 LTS always stuck in Login First time, but to recovery screen second time

Presently Installed Ubuntu 12.04 LTS as stand alone through USB overwriting older linux versions option. Previously installed as dual with Windows XP. Then for about 7 times as stand alone with custom ...