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

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Impossible to GUI-login after NetworkManager removal (Linux)

Config: Ubuntu 14.04.3 LTS (same problem on Mint 17.2) I removed network-manager (via apt-get ... remove). I rebooted. Now I cannot login anymore, each time I enter password, the screen turns ...
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0answers
3 views

Ubuntu 14.04 login loop VIRTUAL MACHINE on Windows 8.1 Virtual Box ATI RADEON GRAPHICS

Laptop HP WINDOWS PRE INSTALLED ATI RADEON Graphics On Windows 8.1 I installed VIRTUALBOX and Installed Ubuntu. Now when i start my virtual machine i get into this login screen Loop. Before the ...
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2answers
18 views

Impossible to log in after changing $PATH

I'm using Ubuntu 14.04. While updating TeXLive I changed the PATH in an obviously wrong way. Now I can't log in: when I enter the correct password it comes back to the log in page. I connected on ...
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0answers
15 views

Gray background at login

The background of my login screen is always gray. I installed gdm as my login manager after seeing my wife's login screen. The gdm login screen is cool-looking IMHO so I asked ASKUBUNTU how to get ...
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0answers
5 views

Challenge-response local user login

Is it possible in Ubuntu, or in any Debian based distro, to use Digital Signatures with a Challenge-response setting for local user login(I don't mean ssh), instead of a password ? Storing the key on ...
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1answer
26 views

How to reinstall Ubuntu 14.04's default login screen [duplicate]

I was playing around with the different Window Managers and I ended up uninstalling the default login screen (I think) How can I reinstall that without reinstalling the whole distro?
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0answers
14 views

hanging at login screen and during working

I have ubuntu 15.4 and I have problem at login After typing my password the laptop hangs about 5 minutes at login screen then shows the desktop . And during working it hangs 5 to 10 minutes and ...
2
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1answer
43 views

Can't log in in Ubuntu 14.04 after install realtek drivers

Environment Ubuntu 14.04 Kernel 3.16.0-46-generic I had a problem with wifi network and I try to install drivers from github rtlwifi_new and then I had a huger problem, because now I can not log ...
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3answers
65 views

ubuntu will not let me set login page background

I want to change the background image of my Ubuntu (14.04) login screen, but Ubuntu doesn't display the changes. I tried changing the background in dconf-editor which resulted in there being no ...
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0answers
23 views

I start off in TTY7, but end up in TTY2, how come?

When I start my machine, I first see that I am in TTY1, and then the mouse appears and I am in TTY7. It's a little odd, but doesn't bother me too much. However, and I think that this only happens ...
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29 views

I can't access my login screen. After the splash screen, my screen turns white

After my splash screen, the display shows 'starting version 219' and my entire screen goes white and no login screen appears. I'm able to access tty. When I tried to start lightdm from there I got: ...
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29 views

Login screen password incorrect

Since the last ubuntu update I cannot login anymore, each time I have a "password incorrect". I open a terminal and updated my password with passwd user, the password works fine in a shell, but still ...
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0answers
29 views

Nvidia driver causing login loop

I have a Lenovo y50 with an integrated GPU as well as an Nvidia 860m. Lspci says that I am using the integrated card but it uses the Nvidia for 3D. Looking at other threads I have tried to install ...
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0answers
24 views

How to translate missing parts of danish language in kubuntu

fellow ubuntu users. I will start by saying that i love KDE, especially the new 5.3 - looks & works amazing! But there are many untranslated words, that shows up in English - and that irritates ...
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2answers
21 views

Ubuntu Screen rotation of 90° after successful login

As mentioned above, my screen loves to rotate 90 degrees after login. Standard Ubuntu installed. This input turns it normal again: felix@felix-LIFEBOOK-T4220:~$ xrandr --output LVDS1 --rotate normal ...
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1answer
40 views

Admin Account Missing after 'shutdown now' Exit

So, I have been learning PostgreSQL and messing around with creating DB's, users, and switching between both with Konsole. Last night, I shut down the computer with the command 'shutdown now'. After a ...
1
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0answers
19 views

Webkit-greeter only changes after a restart, not when logging out or locking computer

On Ubuntu 14.04, I installed the lightdm-webkit-greeter using sudo apt-get install lightdm-webkit-greeter then, I did the following to get the greeter I wanted: cd /usr/share/lightdm-webkit/themes/ ...
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0answers
26 views

No dash, login loop [duplicate]

I am running Ubuntu 15.04. I get to the login page, type in my password (Unity is visible at this point), I then go to a blank page with my wallpaper and my cursor. After about 5-10 seconds the screen ...
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0answers
58 views

Log in with password not working(Lubuntu-15.04)

I have enabled the Password:asked on login from the users and groups available in the system tools. But however it's not working for me. When I login to lubuntu it automatically goes to the session ...
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0answers
65 views

Cinnamon on Ubuntu 14.04 - black screen after logging

I use Cinnamon with Ubuntu more than a year, but yesterday new error came: A few seconds after I started Ubuntu and logged in my profile with Cinnamon, it loads just a black screen, and then a logon ...
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0answers
13 views

Timekpr preventing shutdown

Recently Timekpr, a parental time restriction program has been installed on my computer. While i can shutdown while logged in, when i try to shutdown from the login screen after being kicked out, ...
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0answers
86 views

Ubuntu freezes, CPU soft lockup, intermittent screen artifacting

I am relatively new to Ubuntu and I am having a few issues, regarding the software or my computer I don't know. A little bit of background - I am dual booting windows 8.1 and Ubuntu 14.04.2 and I ...
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0answers
23 views

Login Loop Revisited Ubuntu 14.04

Ubuntu 14.04 I7 Toshiba Qosmio I know many of you have already answered people's questions about the login loop, but I am still stuck in this mode: When I try to login with my username and password ...
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1answer
156 views

Cannot login into Ubuntu 14.04.2 LTS Username tty1 screen

Got an error about missing /tmp. I choose the option to fix the problems. That did not work and now everytime I boot, it takes me to Ubuntu 14.04.2 LTS [username]-ThinkPad-T440s tty1 ...
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50 views

Ubuntu 14.04 log in fails and returns to log in screen, and runs in a very low resolution

After installing a recent update (Can't tell you any details since I can't access anything), I can no longer log in on Ubuntu 14.04. I just get booted back to the login screen after a second or two ...
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0answers
143 views

Ubuntu 14.04.2 login screen loop back

I have a login screen loop back problem, when I punch my password I get back to the login screen again. I have tried to login with LightDM CI screen by Ctrl+Alt+F3 but there when i put in the username ...
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0answers
31 views

Change log-in screen

I wanna change my log-in screen to something that I can personalise to my own liking. I'm on Ubuntu 15.04 Vivid Velvet recently updated from 14.04. Before 14.04 I ran linux mint on my laptop and in ...
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0answers
27 views

Udev rules for USB mounting and Low Graphics Mode error

I have a file containing the content bellow KERNEL!="sd[a-z][0-9]", GOTO="media_by_label_auto_mount_end" # Import FS infos IMPORT{program}="/sbin/blkid -o udev -p %N" # Get a label if present, ...
0
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1answer
42 views

All flavor of Ubuntu 15.04 goes to sleep on login screen?

After boot and the login screen is showing up, my laptop immediately goes into sleep even when I'm typing my password. I have used Ubuntu since 2010 on this machine, this is the first version that ...
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0answers
19 views

Login screen does not fill monitor

For some reason, my login screen does not fill up my entire monitor. After I enter my password, the screen goes all glitchy and weird for a few seconds, then it logs me in and everything is normal. ...
0
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1answer
18 views

Are there still issues with re-logging after desktop lock in Ubuntu 15.04?

Following my previous question in the subject and since no solution has been found: I was wondering if there are any users of Ubuntu 15.04 which are experiencing this issue?
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1answer
20 views

14.04 USBs powered off at login screen

I'm using Ubuntu 14.04 LTS with a Dell normal desktop PC. I've been suffering this issue from the very beggining. Randomly, the USBs ports seem disconnected/powered off at the login screen, before ...
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3answers
60 views

My linux won't let me get in as user or even as a guest in login screen

I opened my computer and it was good and all , but then when my desktop was supposed to appear , there was some kind of log in window that has 2 options, to log in as my user name or as a guest. The ...
0
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1answer
52 views

Another password prompt when waking from suspend

After upgrade to ubuntu 15.04, I have to enter password for twice to unlock my system when it wakes up from suspend. The first password prompt looks weird, I've never seen it before and have no idea ...
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0answers
142 views

infinite loop at login screen on Ubuntu 14.04.2

My laptop always opens without requiring password, but login screen came out when i was trying to open my laptop. My password was 100% sure true, but i could not login, first black screen appeared and ...
0
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1answer
54 views

Ubuntu not accepting correct password

Sir, I am entering the correct password in Ubuntu, but the screen just blinks and again shows me the same login screen. Guest session works properly. What should I do?
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1answer
72 views

How can I change the date format in the Lubuntu login screen?

I'd like to set a different format for the long date string I get at the top of the login screen in Lubuntu (15.04). How do I do that?
0
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1answer
53 views

Cannot login from lock screen

On a new 14.04 setup I am having an issue where I cannot login from the lock screen. When my screen locks, the only way I can login is by selecting to login as a different user, which takes me back ...
1
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1answer
115 views

How can we set custom image as background for desktop and login screen [duplicate]

If we select default wallpapers in Ubuntu as desktop background image it will automatically set the same image as login screen. But if we use a custom image as a wallpaper it will only change the ...
0
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2answers
277 views

Ubuntu 14.04 Returns to Login Screen After Login

When I type in my password to my newly installed Ubuntu 14.04 computer, it returns me to the login screen. I've seen other answers but those were to Ubuntu 13.04 and older and didn't work.
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0answers
73 views

Ubuntu 14.04 LTS Gnome cant load desktop

I have problem with ubuntu 14.04 LTS. On Ubuntu I have installed gnome and lubuntu desktop and I´m using gnome. Yesterday I have installed security update and virtualbox update. When I run ubuntu ...
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0answers
204 views

I can't login to Ubuntu on Virtualbox

When I enter my password and press enter, it processes for a while and then loops me right back to the account login screen again. I'm using Ubuntu 14.04. I've tried using the advice on this thread ...
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0answers
27 views

How can I remove a specific user from the Ubuntu login screen? [duplicate]

I am using Ubuntu 14.04LTS. When I login, there is an extra user called 'Oracle' present. How can I hide this?
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0answers
26 views

Ubuntu 14.04 stuck in login loop [duplicate]

I installed the cuda toolkit 7 and right after I restarted I was stuck in a login loop. I tried all the suggestions I could find which includes deleting the .Xauthority file, .profile, reconfiguring ...
0
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2answers
44 views

/usr/bin no longer in path after booting into windows 7

I have a dual booted windows 7 / ubuntu 14.04 computer. Everything in ubuntu worked fine until I booted into windows and then switched back to ubuntu. Now when I try to login it keeps sending me ...
2
votes
2answers
135 views

Can't get rid of Lubuntu's Login Greeter

If I lock my computer or logout, when I log back in, I want to see unity-greeter. But I can't seem to get rid of Lubuntu's greeter upon logging in. I once installed Lubuntu but have since uninstalled ...
2
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1answer
109 views

How to edit (CSS) LightDM GTK+ Greeter

Is there a manual or does anyone know how to edit the (CSS) files for the LightDM GTK+ Greeter? I'm already using LightDM Greeter Settings, but I want more customization. Somehow the webkit greeter ...
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0answers
82 views

Can't login into Ubuntu VM

I've installed Ubuntu 14.04 32 bits into VirtualBox on a Windows 8.1 32 bits, but when I try to login, it just sits there for a while thinking, a black screen pops and it goes back to the users, it ...
0
votes
1answer
54 views

No sound after login in 14.04

I have clean install of Ubuntu 14.04. I had some kind of freeze yesterday and after I rebooted the laptop I have no sound in system. But I do have sound on login screen - I hear the "banging" sound. ...
0
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1answer
59 views

Ubuntu automatically logs on to guest account [closed]

I installed Zorin 9 using a USB on my Dell Inspiron 1440 laptop After the installation completed and I rebooted the system, Grub doesn't show up on my external screen, waited for 20 secs, pressed F1 ...