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

learn more… | top users | synonyms

0
votes
0answers
24 views

Ubuntu 14.04 stuck in login after upgrade

After upgrading from 12.04 to 14.04, I'm not able to login anymore (guest account doesn't work too); there's a loop (it goes back to the login). What should I do? I've already read Ubuntu gets stuck ...
3
votes
1answer
64 views

How to remove the ugly blue log in?

Due to following some guy's answer, now when I tried to log into the ubuntu, I was given an ugly blue login window: I thought I can get rid of it by setting automatic login and found some hints on ...
1
vote
2answers
3k 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 ...
6
votes
5answers
3k views

rotated monitor. login screen needs rotation

I rotated my screen, an once I login, it works fine. but, the greeter (login) screen hasn't got the message that things are rotated 90 degrees. How can i change the rotation of the login screen? ...
0
votes
0answers
34 views

how do I login when ubuntu stops before login screen?

So I tried to get rid of gnome-ubuntu-desktop but it resulted in that i now can't log in to ubuntu at all. When ubuntu starts the gnome logo comes up and the disapears and the screen continues to be ...
0
votes
1answer
22 views

Ubuntu Studio does not start with XFCE desktop but the other one. How to fix?

I have installed ubuntu studio 14.04 and when I changed desktop from the login screen it can't change back to xfce. I select xfce but it logs me in the other desktop environment. Any ideas why that ...
0
votes
0answers
18 views

14.04 Random Logouts

Relates to the unsolved question #166687 I also am using chrome when the screen goes black and I'm at the login screen. Everything I had open is now closed and my keyring was not unlocked at login.
2
votes
2answers
451 views

How can I use custom wallpapers for the login screen?

I recently Installed 12.10 version and I loved it! But the there's something weird with Wallpapers. As long as I use a wallpaper from the /usr/share/backgrounds folder (I use the "appearance" dialog ...
2
votes
2answers
6k 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 ...
1
vote
5answers
5k views

Ubuntu 12.04LTS stuck at login mouse and keyboard not responding

I have Ubuntu 12.04LTS installed on a dual-booted machine (i5 dual core 8G ram) and it's been working fine, but today for some reason when I logged out and tried to log back in it is stuck at the ...
0
votes
1answer
74 views

Stuck in a user log-in loop on startup (fresh install)

So I wanted to set up my Lenovo Flex 2-15D to dual-boot Ubuntu alongside the pre-installed Windows 8.1. I installed the Universal USB Installer from pendrivelinux.com, created a USB stick loaded with ...
0
votes
1answer
31 views

User account not loading after installation

I installed MySql server and workbench on Ubuntu 14.04. After some time the system hanged and after restarting it, the administrator account is not loading. When I enter the correct password the ...
0
votes
1answer
28 views

After updating 12.04 in the next reboot the cursor just blinks

I just updated my ubuntu 12.04. Now I am stuck with a blinking cursor during start up. It's now like this for past 15 minutes. Is there any solution to over come this issue? Any guidance would be ...
0
votes
1answer
163 views

fix “The system is running in low-graphics mode” error without internet

I'm very sorry for asking about this error in another question but all the solutions in here require for you to have internet. I only have wireless internet and when I am in that console the internet ...
4
votes
4answers
10k views

How to restore Ubuntu login screen after lubuntu install?

I have Ubuntu 13.10 installed. I then installed lubuntu 13.10 (sudo apt-get install lubuntu-desktop) too. As a result the login screen has changed and I can no longer get an on screen keyboard. How ...
2
votes
2answers
1k views

Default login screen missing, how to revert?

I installed some KDE stuff by mistake. After removing it, my login screen now is quite different; has a white background and the user icons+input appear in the centre. [note that I have tried sudo ...
67
votes
16answers
98k views

Ubuntu gets stuck in a Login Loop

My problem: As you can guess my Ubuntu is stuck in a login loop when trying to enter my desktop. Means the screen gets black and soon after that the login screen comes back. I'm a Ubuntu Newbie so if ...
0
votes
0answers
28 views

Cannot login user in visual screen but can login in terminal mode

Im trying to login through visual screen into my user, but it seens Ubuntu is not recognizing my password. I already change it throught root user from recovery mode, and I tested it in the alt+ctrl+f1 ...
0
votes
2answers
61 views

Ubuntu 14.04 won't let me login

Yesterday I was updating some applications. I come back later and I see a red stop sign on top of my screen that stated there was an error. It said that some of my packages needed some dependencies. I ...
21
votes
2answers
20k views

How can I make LightDM the default display manager?

I have LightDM installed and can start it with sudo start lightdm. But at boot, GDM is still the default. How can change this so LightDM is loaded automatically at boot instead of GDM?
9
votes
6answers
23k views

Changing login screen wallpaper

I have been trying to change my login screen wallpaper to one of my own using ubuntu-tweak. The wallpapers are located in Ubuntu's default wallpaper folder and I have given all users read privileges ...
0
votes
0answers
35 views

Very Novice - Can not login after upgraded from 12.10 to 14.04.1

So I opened the cmd prompt and have gotten as far as login to the computer's Directory, but it won't let me on to the desktop. Every time I try my password there it says it fails and to try it again. ...
0
votes
1answer
24 views

black screen startup. Try Ubuntu now asks for password

So I have a Toshiba Satellite laptop that I just tried to fully install Ubuntu 14.10 (I think, most recent) on. When I originally clicked Try, everything would load as expected. So I tried to ...
1
vote
1answer
913 views

Cant log in to gui ,X is broken

Note to others if you just want a summary of the problem skip down to summary. This first part is going to be slightly long and hopefully entertaining. As in, that is screwed up! but there might be ...
0
votes
0answers
17 views

How do I set the background for lightdm-kde-greeter

I'm running Gnome desktop in 12.04 and installed the lightdm-kde-greeter. But I'm not sure how to change the background. Google has been no help, as all the suggestions say to go to the System ...
0
votes
0answers
195 views

Ubuntu 14.10 Lightdm greeter resolution before login

There are various answers for changing the resolution of the Lightdm greeter before login by adding a root executable script to /etc/lightdm/lightdm.conf like this: [SeatDefaults] ...
1
vote
0answers
15 views

How can I use the default LightDM login screen with GNOME Shell? [duplicate]

I would like to keep the normal Unity log-in screen and everything. When I installed GNOME Shell, it seems to have replaced the log-in screen with the GNOME one. I like jumping between different ...
0
votes
1answer
59 views

Unity Greeter starts with a black output Screen

The unity greeter in my Ubuntu 14.04 laptop starts with a black output screen. When I say this I mean every error and output of the greeter is printed on the screen but the GUI is not visible. What I ...
4
votes
2answers
5k views

How does “Accounts Service” work with lightdm?

I have added two users using the command useradd but they do no show up in the lightdm/unity-greeter login screen. So there is no way to graphically login for them. It seems Accounts Service ...
0
votes
1answer
75 views

lightdm-gtk-greeter keeps loping into login screen

Since I had problems with unity-greeter I had installed lightdm-gtk-greeter and it keeps looping into the login screen. 14.04 ubuntu I have several solutions: removing .Xauthority file, reinstalling ...
1
vote
0answers
24 views

login screen problem related to user partition

Every time I switch on my pc, I see the screen message: user/local disk cannot be found please mount it manually or press 'S' to skip What I did was I created a /home partition and local/user ...
0
votes
0answers
238 views

Several attempts to customize GDM login screen in Ubuntu 14.04 LTS failed. What are the ways to customize it?

I installed GDM on Ubuntu and set it as default via sudo apt-get install gdm. It looks like this( I took screenshots but can't trace where was it saved as it was not available in default directory ...
1
vote
3answers
811 views

Disable sleep mode after 5 minutes

I have Ubuntu 14.04 installed on my laptop. When I have my laptop plugged in to my tv to watch a movie, the screen goes black after exactly 5 minutes. I have to move the mouse, to see I'm at the login ...
1
vote
1answer
1k views

Disable second screen on the login screen but enable once login has completed

I currently run Ubuntu 13.04. I recently got a second screen for my computer and I have noticed because they are different resolutions (one is 4:3, one is 16:10) the login screen is duplicated and ...
0
votes
1answer
30 views

Garbled image after login

I have had for quite a long time this issue. The login wallpaper (in LightDM) is gone, and after I input the password the screen goes all garbled (see screenshot here) and it stays there for five ...
1
vote
2answers
539 views

Ubuntu 14.10 black screen at login

I have a fresh install of Ubuntu 14.10 on my laptop Compaq 420, just a while ago. At login screen, it suddenly becomes black for a split second and then shows it again. Or sometimes, it appears after ...
0
votes
2answers
34 views

how to log on/off from ubuntu user to windows user without closing computer completely

i want to know if its possible to log on/off from ubuntu user to windows user without closing computer completely like when in windows win+l open user logon screen then you choose your win user then ...
1
vote
3answers
4k views

Xubuntu 13.04 X Login Loop

All of a sudden, I am no longer able to login to an X session in my Xubuntu 13.04 install. The graphical login accepts my password, the screen goes blank and then returns to the login prompt. A bit of ...
0
votes
2answers
211 views

How to fix Ubuntu 14.04 LTS login screen hangs with “logging in…”

Anyone have suggestions for this: I upgraded my Ubuntu system to 14.04, and the upgrade failed miserably. I was forced to restart the system in order to get to a login. After following several ...
2
votes
1answer
1k views

How to disable sliding login screen in Gnome?

I am using Gnome 3.6 and I am quite annoyed by the login screen when my computer wakes up. The new implementation in Gnome includes two steps. First you have to hit Esc or click and drag upward ...
0
votes
0answers
27 views

lightDM GTK greeter won't log in unless root

I've been building an Ubuntu distro from the ground up, and I decided to use the LightDM GTK Greeter. Everything is going good, until I decide to log in to the non-root account. If I try to log in to ...
1
vote
1answer
464 views

How to set GNOME as my default desktop environment?

I just downloaded GNOME-Shell. And at login screen it's give me to choose to set desktop environment, But I want to set GNOME as my default desktop environment. Although I tried the possible ...
0
votes
1answer
9 views

how to unlock screen when booted from usb?

i installed ubuntu 13.10 in the installation process i lost all data. i booted from the usb and took the help of testdisk. sudo apt-get install testdisk sudo testdisk After finding all the ...
0
votes
0answers
20 views

Progress bar in my login screen

I have a problem. After boot system, my login screen show a progress bar. If I do nothing is performed automatically login. Look: How to remove it?
0
votes
0answers
21 views

Ubuntu login page doesn't load

my Ubuntu 12.04 doesn't load the login page anymore. I'm using it in double partition with Win7 and after I select Ubuntu from the grub, it only appears the preliminary loading and then black screen. ...
0
votes
1answer
461 views

Ubuntu 14.04 desktop not loading after login

Turn on the PC, get normally to the login screen. But when I login, the desktop doesn't seem to load. I've waited half an hour but it still didn't load. I can get to the root by using the GRUB screen ...
0
votes
0answers
37 views

Keyboard and mouse unresponsive at login screen

Running Ubuntu 14.04 for a couple of weeks and now the keyboard and mouse has stopped working. Works well when booting, can access and change boot settings, but as soon as I reach the login screen it ...
0
votes
0answers
13 views

How to find what prevent my computer from unlocking?

When asking for my UNIX password at the login screen, entering the right password won't unlock it but it does the sound as if it's happy and don't give an error message. Here are the last things I ...
0
votes
0answers
21 views

Black screen after the purple load screen

I'm using ubuntu 12.04. I just restarted it, and it goes to the purple screen. What happens there is unusual, because it just stays purple for about 3-4 seconds, which never happens. Then, it shows ...
131
votes
37answers
372k views

How to fix “The system is running in low-graphics mode” error?

Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong ...