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

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0
votes
1answer
25 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 ...
0
votes
1answer
163 views

Hide TTY1 login when using no “quiet splash” as GRUB_CMDLINE_LINUX_DEFAULT

I want to see the boot messages when starting Ubuntu, so I edited /etc/default/grub and removed the `quiet splash setting: GRUB_CMDLINE_LINUX_DEFAULT="" But now after those messages and before ...
4
votes
2answers
8k 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 ...
3
votes
4answers
10k views

Blank screen after entering password on login screen after clonezilla restore

I get a blank screen after entering my login password at the ubuntu login screen. And after a short while the login screen is restored. Any further attempts result in a similar cycle as before. This ...
0
votes
0answers
49 views

14.04 login-loop after installing NVIDIA driver .run file

So I have a Dell Inspiron 15 7559 (NVIDIA GeForce GTX 960M) running Windows 10 and Ubuntu 14.04 LTS. I was able to install Ubuntu from a live USB after having added the kernel parameters: quiet ...
9
votes
6answers
6k 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 ...
6
votes
5answers
3k 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 ...
1
vote
0answers
34 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 ...
1
vote
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 ...
0
votes
0answers
53 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 ...
0
votes
0answers
28 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 ...
0
votes
1answer
98 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 ...
3
votes
0answers
32 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 ...
3
votes
1answer
2k 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 ...
173
votes
31answers
292k views

Ubuntu gets stuck in a login loop

My Ubuntu is stuck in a login loop when trying to enter my desktop. When I login, the screen gets black and soon after that the login screen comes back. I've read that the problem might be caused by ...
0
votes
0answers
4 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 ...
5
votes
1answer
170 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 ...
1
vote
0answers
32 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 ...
1
vote
0answers
32 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 ...
16
votes
14answers
57k 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 ...
1
vote
3answers
1k 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?
0
votes
1answer
4k views

Log in fails and returns to log in screen

I am running a very nearly fresh Gnome version of 12.10, with no particular tweaks or customisation. I performed an upgrade yesterday using sudo apt-get update; sudo apt-get upgrade which completed ...
0
votes
0answers
57 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 ...
0
votes
0answers
36 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 ...
0
votes
0answers
26 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 ...
0
votes
0answers
14 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.
0
votes
2answers
628 views

Problems with login after startx command

I am running 14.04. after typing startx command i cannot login same account again. Login screen is repeatedly showing. I can login with guest section but i can not login to my another section . i ...
4
votes
3answers
5k views

Need restart lightdm at every startup - console login screen

Everytime I boot up my ubuntu 12.10, I get a black console screen. I need to login in tty, and restart lightdm : sudo service lightdm restart Then the GUI lightdm login screen appears as expected. ...
2
votes
0answers
146 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 ...
1
vote
1answer
108 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 ...
14
votes
4answers
4k views

Ubuntu 15.10 randomly crashing back to login screen

fresh install of Ubuntu 15.10 here. Everything works fine, but I'm getting random crashes back to the login screen. I pasted my syslog here: http://paste.ubuntu.com/12989589/ Edit: Confirmed bug on ...
0
votes
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 ...
188
votes
40answers
552k 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 ...
0
votes
1answer
124 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 ...
0
votes
0answers
40 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 ...
0
votes
0answers
30 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 ...
0
votes
0answers
15 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
2answers
317 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!...
0
votes
0answers
42 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
votes
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 ...
0
votes
0answers
88 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, ...
1
vote
1answer
229 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, ...
0
votes
0answers
30 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
54 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 ...
77
votes
16answers
46k views

How do I disable the drum beat sound on the login screen?

I would have expected System ▸ Administration ▸ Login Screen ▸ Play login sound to control this, but unchecking it does not prevent the drum beat sound from playing.
2
votes
0answers
29 views

How do I disable GDM?

The new Ubuntu features a completely unkillable GDM. Is there a way to disable it? It is not enabled in services , the GDM startup script is deleted, it is removed from update.rc but it still starts ...
0
votes
0answers
45 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
0
votes
0answers
32 views

Ubuntu 15.10 installation crash now asking for login

I tried upgrading to Ubuntu 15.10. The installation crashed. A Black screen appeared and then nothing happened. I turned off My laptop and tried to reboot. Then a Black screen appeared asking for a ...
0
votes
1answer
155 views

HUGE PROBLEM! Can't log in to Ubuntu 14.04 after upgrade to 15.10, stuck at login screen

So I started the upgrade from Ubuntu 14.04 LTS to Ubuntu 15.10. Everything was going okay until it logged out. Even the guest session is not working tried upgrading from terminal with Ctrl+Alt+F1 but ...
0
votes
0answers
16 views

As soon as I log in my computer logs me out again

I've been having some trouble trying to install virtualbox on my computer. While trying to install npm ass well the terminal recommended apt-get autoremove. This made me not able to log in again. Per ...