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

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Cannot login as administrator after reinstalling Ubuntu 12.04 LTS

After reinstall Ubuntu 12.04 LTS on a laptop, a new problem arose: can no login as administrator. When trying to log in, Ubuntu just do not let enter, no errors, but can enter only as a guest. ...
1
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1answer
30 views

System Shutdown

After a recent update (not sure which/when) the login screen no longer has the cogwheel for shutdown. How do I restore it? I have three systems, only one (Toshiba laptop) has this issue.
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0answers
12 views

stuck in a login loop scree

My Ubuntu 16.04 is stuck in a login loop screen. When I login with virtual terminal by pressing CTL+Alt+ F3 I get to a point where I can in put my user name but cant enter password the cursor keep ...
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1answer
22 views

Unable to login in Virtual Machine in ubuntu 15.10

I am using Virtual Machine Manager in Ubuntu 15.10. When I try to login after giving correct username and password the system is showing again the login screen. I can not use hot key because whenever ...
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0answers
14 views

KDE doesn't load on Kubuntu

I installed Kubuntu on flashdrive. After loading finishes and KDE doesn't start - I have blank screen. I don't even see a login screen. Alt+Shift+F1 goes to terminal. It worked previously but before ...
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1answer
42 views

Unable to login to Gnome (-> login loop), only Unity login possible

I have a problem basically exactly the same as this one. What did I do? I wanted to try out GNOME and installed it according to this guide: sudo apt-get install gnome-shell sudo apt-get install ...
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3answers
47 views

Is it possible to login as root in this situation?

The Ubuntu server has been not used for about three months and it works not well. When I try to run it the start process stuck on "stopping system V runlevel compatibility". I searched this forum and ...
2
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1answer
101 views

Restore Ubuntu 16.04 Login Screen

I installed Ubuntu Kylin Theme but I want to restore the original login in screen for ubuntu, I tried to uninstall the theme, purge and reinstall the lightdm and also change the default to gdm with ...
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0answers
44 views

How do I change the login screen in Ubuntu 16.04+?

The recipe for changing one's login screen in 14.04 doesn't work in 16.04. The "custom" background shows for a split second and then fades to the Ubuntu one. So, how do I change the login screen ...
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0answers
28 views

ubuntu lockscreen issue

When I do Super + L in Ubuntu it locks the screen and original lock screen with white dots appears. Then after 30 seconds the screen goes black and when wake it up again lightdm greeter is shown ...
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0answers
36 views

How do I get past my login screen?

When I boot up Ubuntu 16.04 LTS, I get shown my login screen. When I put in my password and press enter, I get a black screen that shows some letters for about half a second, then I am looped back to ...
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0answers
25 views

Change top bar and font scaling on login screen 16.04

How can I apply font scaling (or just change font size) and top bar scaling at the login screen? I've customized my settings so the to bar is thinner and text is smaller and I don't like that the ...
2
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1answer
33 views

What is this second login screen?

Before being presented with the actual login screen, I am presented with another additional login screen. What is this second login screen? Actual login screen: Additional login screen: ...
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0answers
55 views

Ubuntu 16.04 Stuck at Boot loop after latest June 29 2016 update

Ubuntu 16.04 is stuck at boot loop. I have tried all forum thread about the discussion and none of the solution offered didn't solved the issue with the system. I have tried tty1 login and login ...
2
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0answers
28 views

Separate wallpaper for login screen and desktop? (16.04 LTS) [duplicate]

I've tried searching for an answer to this with no luck. I had a go at the method detailed here but as soon as I log out the new wallpaper is there for a brief second before it changes back to my ...
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0answers
20 views

login page going into loop in 14.04

I am only able to login into guest account. I tried ctrl + Alt + F1 , and got the terminal login. But its not accepting my credentials, the correct one. I am not able to sudo , Please suggest me ...
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0answers
19 views

Autologin with NFC

I would like to use NFC to login to Ubuntu. Here are the steps and my system is password protected. The user logs in for the day and place NFC card on reader. When user leaves they lock the ...
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0answers
38 views

Installed GNOME 3 ppa on Ubuntu 16.04 now cannot log-in to Ubuntu 16.04 anymore

I am running (or was) Ubuntu 16.04 and wanted to try out GNOME. I think I might have messed things up here by adding the GNOME 3 ppa. What I intended to do was get it so that when I restart, I would ...
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1answer
33 views

Ubuntu Windows10 dual boot problem

I had Ubuntu 15.04 and Windows 10. Both used to work well. I mainly used Ubuntu. I remember last time I booted into Windows 10 was a few months ago and there was no problem. A few days ago I upgraded ...
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0answers
39 views

Can't log into Ubuntu, takes me right back to login screen. Also computer runs in abnormally low resolution, possible graphics card issues

I feel like my problem will be best explained if I just tell you guys what happens. The short version: Upon boot, I get the /dev/sda message, font changes, then a messed up loading screen, an orange ...
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0answers
37 views

Make Lubuntu's login screen solid color

Since i3 appears to inherit the wallpaper from Lubuntu (16.04)'s login screen, I figure I need to change the latter. I followed these instructions, but to no effect. Not only do I not get the blue ...
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0answers
72 views

Critical freeze on login in ubuntu 16.04

Using an up-to-date Ubuntu GNOME 16.04 system on a msi cx70 sometimes on login screen I can have a freeze. After this I can only reboot machine or call console (ctrl-alt-f1). What can I do to fix or ...
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0answers
43 views

Ubuntu Server 16.04 Login Username Field

I have already searched and was unable to find any documentation on this issue. I have freshly installed Ubuntu Server 16.04 on a machine that seems to have been built around 2009-2011. I used a ...
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0answers
6 views

Login screen still of the previous one

I first installed ubuntu mate. Then switched to ubuntu 15.04. But the login screen still appears to be of mate. Plz tell me how to change it. And by login screen, i mean the screen where we type ...
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0answers
34 views

Login cause loop with error

I'm using Ubuntu 14.04 with Oracle VM on a laptop : GS60 6QE. Use to have graphic problem with Ubuntu, but at least I can work. Suddenly I can't login normally. I'm on it for hours now ... If ...
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0answers
38 views

14.04 hangs after login, no desktop

Mouse is still responsive, guest account can login and I can still login to my account through tty1. I've tried reinstalling ubuntu-desktop but it didn't change anything. I'm not sure what other ...
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0answers
53 views

“Authentication is required to update SMART data from” in 16.04

I upgraded to 16.04 [Ubuntu Gnome]. I am using a Lenovo Y700 with a GTX960M. After suspend or closing the lid I ended locked outside the login after that message appeared. It happened twice today, I ...
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0answers
85 views

Ubuntu stuck in 15.10 upgrade- unable to login in tty1

On way to upgradation from 14.10 to 15.10 , Ubuntu got stucked in a graphics less window. Then after restart can't login - showing login error in tty1. Tried several codes but login error. May be for ...
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0answers
16 views

Keyboard works in bios but not Lubuntu

Works in bios, but not 14.04.4 login screen. Any ideas why? No installing other OSs please (looks at my dad) and I have a spare keyboard to use. It is a small netbook.
2
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0answers
169 views

After login Desktop not showing 16.04

I am using ubuntu 16.04 and I have installed kali linux on top of that using katoolin, after restarting I can enter the password but desktop showing blank no icons. I used below command no use. Please ...
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0answers
27 views

howto resize the ubuntu logo in the login screen 12.04

how can i resize the area reserved for the Ubuntu logo in the login screen. I managed to change the logo and replace it with mine, except that mine is a squared image file with much bigger dimensions ...
5
votes
1answer
752 views

Enable [Fn]+[cursor arrows] on lock/login screen to change volume and brightness

Having a new Acer Aspire E17 E5-773G with Ubuntu 16.04 on it, I experience that the keyboard combinations to adjust volume (Fn + ↑/↓) and brightness (Fn + ←/→) do not work on the login screen or lock ...
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0answers
25 views

access/login to user profile/folder in VM ubuntu 12.04 lts [duplicate]

When I click log in to login to my user profile, the screen turns black for a fews seconds you can see a few lines (trying to start and get kick out?) and then just returns to the log-in menu. It logs ...
0
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1answer
160 views

Ubuntu 16.04 - fsck running - prevent login

Is it normal that Ubuntu prevents me to login when it's running fsck? When I input my user and password it shows me this message: /dev/sda1: clean, 281922/7077888 files, 6496532/28293888 Then come ...
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0answers
57 views

sddm login window on two screens with different resolution

I have two monitors with different resolutions (1920x1200 and 1680x1050). When I turn on the computer, on the smaller screen I see a correct login window, but on the larger screen I see a 1920x1200 ...
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0answers
37 views

Unable to login after suspend in Ubuntu 14.04 Gnome LTS

After waking from the suspend or sleep mode, I am not able to login, the only way is to reboot or to use Ctrl + Alt + F1 to use sudo restart gdm, I am using Ubuntu 14.04 Gnome LTS 64 bit and the ...
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0answers
17 views

Other options to log in to ubuntu than password?

I am dual-booting Ubuntu with Windows 10. While I get the idea that not everything is the same, I would still like to know if I can use one Win10 feature on Ubuntu: It is "Other options to log in" ...
1
vote
1answer
155 views

Login Loop for Guest Account only on 16.04

I have some 40 Dell Latitude E6410s I maintain in my classroom for student use. I have successfully setup and used special 'guest' accounts so the directories are wiped between uses. This scheme ...
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2answers
461 views

I can't access to the login screen in Lubuntu 16.04 LTS (2)

Sorry for repeat the same thread but nobody answer me and I need a fix as soon as posible because I can't stay updating PCs going first to 15.10 and later to the LTS. Please help me! Thanks in advance!...
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0answers
50 views

Can not login .XAuthority seems broken

I know that this is a common error and I have read many threads in this regard. I get to the logon screen and type in my pw and it hangs for 20 seconds or so and then displays the log screen again. ...
0
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1answer
202 views

Ubuntu 14.04 login loop Unity terminated with status 1

I have ubuntu 14.04 and am stuck in a login loop problem despite trying the common answers to the multitude of questions on the site ,none have worked. I can't figure out what's wrong and would be ...
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0answers
96 views

ubuntu 16.04 does not start after installing some packages

I had installed the ubuntu 14.04.4 some months ago and i tried to install the proprietary driver for nvidia and i had problems with black screen, and i could not revert to the previous driver. So, ...
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0answers
19 views

Ubuntu 14.04 LTS Dell Inspiron log in screen changing resolution apparently randomly

I have a new Dell Inspiron XPS, and frequently when I reboot the laptop, the login screen (apparently somewhat randomly) seems to be 4x4 of my original resolution, and the password field, all the ...
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0answers
39 views

Small onscreen keyboard on login screen

Login screen has small onscreen keyboard. After login, onscreen keyboard is right size. I've Ubuntu 16.04 server install, Elementary-desktop installed to it, but I had same problem with default ...
2
votes
0answers
60 views

Ubuntu Touch - Login screen

Is there a way that I can set up my Ubuntu Touch Tablet login screen to rotate when the rotational lock is not on? When I have my tablet on its rest the login screen is upside down. So I enter my ...
1
vote
1answer
272 views

I can't access to the login screen in Lubuntu 16.04 LTS

I have a Toshiba NB300 with 1 GB RAM with Intel® Atom™ processor N450 and I recently installed Lubuntu 16.04 LTS i386 and I have this message on the screen instead of the login box "/dev/sda6: clean, ...
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2answers
2k views

Can't log in Ubuntu 16.04 using Nvidia proprietary driver

I've recently upgraded from ubuntu 15.10 to 16.04. Here him my laptop details: Acer Inspire V nitro 17 Nvidia GeForce 860M RAM 6Gb As I was using nvidia driver on 15.10, after the upgrade I ...
3
votes
1answer
3k views

Ubuntu 16.04 flickering and disappearing screen - tried everything!

Video https://youtu.be/W7hm5Iorw8s with the problem. Running Skylake/Nvidia gtx 950 on a clean install. I'm no expert at all and I haven't got a clue what to do. I've tried various things but nothing ...
9
votes
6answers
8k views

After Upgrade from 14.04 to 16.04 login screen runs in a loop while console login works

I am on a DELL Precision 5510 Ubuntu Edition with Ubuntu 14.04 as default installation. Today I upgraded from 14.04. to 16.04 as shown here The upgrade went without any error messages. However, after ...
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0answers
49 views

how to set last desktop environment as default

my friend chmod to all directory in my PC. so all directory permission change after that incident, when login (input user & password) i must select again last session entry thank you