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Questions tagged [login-screen]

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

426 questions with no upvoted or accepted answers
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6
votes
1answer
1k 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 ...
5
votes
1answer
13k views

Ubuntu 16.04 flickering and disappearing screen

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 works and the guides are often not clear enough for ...
4
votes
1answer
207 views

Getting rid of an unknown user

My login screen has started listing as an alternate user a word which I have used in the past as a password for certain applications. However, when I try to delete it I am told it does not exist, and ...
4
votes
0answers
2k views

How do you change keyboard layouts from the login screen in Xubuntu?

I've set up multiple user accounts in Xubuntu 14.04. I (the admin) am a dvorak user so I have English US dvorak as the default layout, but the other user is a qwerty user. I've added English US ...
4
votes
2answers
2k views

“dm-tool lock” doesn't lock my session

When I use dm-tool to lock the screen for userA, I can log in as userB and then use dm-tool to switch back to userA's session without having to enter a password. Is that the expected behavior? If ...
3
votes
0answers
25 views

[ubuntu 18.04 a briefly showed screen right after log-in

I've recently installed Ubuntu 18.04 LTS on my laptop and managed to customize themes for various components. Not saying it's bad but there are so many purple screens coming up all along the booting ...
3
votes
0answers
459 views

KDE 5.56 SDDM Login screen resolution on HiDPI FHD screen

OP on reddit Hi, I have a problem with Kubuntu 19.04 in my 13" FHD (1920x1080) laptop screen. The login screen is too small as was the whole Plasma KDE. I was able to re-scale the screen to 1.5 (...
3
votes
0answers
213 views

Ubuntu 18 login loop + startx works

So recently I got stuck in a login loop on Ubuntu 18. I tried some solutions posted here but none of them works for me so far. Here's what I tried by accessing terminal from login screen: Checking ...
3
votes
1answer
334 views

Caps lock indicator for Ubuntu 18.04 lock screen and login screen?

My laptop does not have a led or anything to show whether the caps lock is on or not, and while Kubuntu warns you on the lockscreen about whether your caps lock is on or not, Ubuntu seems to lack it. ...
3
votes
0answers
708 views

Login loop on 18.10 after attempting to change login screen color

I have my Ubuntu 18.10 just installed on my SSD and somehow I broke the desktop. I was trying to change the login screen color following this forum: How can I change the purple background color of ...
3
votes
0answers
2k views

Why does Ubuntu 18.04 LTS load default wallpapers before user set wallpaper?

I'm running 18.04 LTS, and I've changed both my desktop wallpaper and the login screen wallpaper to a custom image. However, when I boot my computer, The login screen will load and display the default ...
3
votes
1answer
703 views

Purple flash when logging in

I am using the same background image for both my GDM background and my gnome wallpaper. However, when I log in, I see a purple splash. I have no clue where this splash comes from. Video Where does ...
3
votes
1answer
323 views

2 different login screens ubuntu 18.04

Recently I upgraded from Ubuntu 17.10 to Ubuntu 18.04, since then, when I login after reboot I get the default ubuntu login screen, and when I login after lock/sleep I get gnome login screen (Small ...
3
votes
1answer
780 views

Can't get past login screen after 14.04 kernel update

After I updated my kernel I restarted my computer (as it always requests) and now I can't log in (I can't get past the login screen). The resolution of the screen at login has also changed, leaving me ...
3
votes
0answers
487 views

Why does the lock screen adds a white dot grid over the background image?

I'm already aware of how to remove the dots from the login screen per these questions: Unity greeter login screen has a garbled white dot grid? How do I remove the dots from the lockscreen in Ubuntu ...
3
votes
0answers
161 views

Why is login screen different after waking from suspend?

I'm on Ubuntu 17.04. My login screen suddenly looks different now. Excuse the smudges. The laptop is worn out. As you can see, it now has an on-screen keyboard and a white window prompt for the ...
3
votes
1answer
2k views

can't login in lightdm (16.10) with xdmcp

Using Xming from a Windows I can get the lighdm login screen. After introducing the right password, the Xserver window goes grid gray and then the login screen is shown again. Any clue? (thanks in ...
3
votes
0answers
1k views

Wrong resolution of login screen

I have a problem with login screen. 1) After boot-up the login screen appears with correct resolution (i.e. my default 3200x1800). However, after a fraction of second it changes to some ~1600x1200. ...
3
votes
0answers
266 views

How to change the order of users in gdm login screen?

I'm the only frequent user on a system using gdm, but in the login screens' user list I am not moved upwards (due to most frequent use), and I cannot find a possibility to order the users manually. I ...
3
votes
0answers
480 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 ...
3
votes
0answers
611 views

After login Desktop not showing 16.04

I am using Ubuntu 16.04 and I have installed Kali linux tools on top of that using Katoolin, after restarting I can enter the password but desktop showing blank no icons. I used below command but it ...
3
votes
0answers
168 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 ...
3
votes
0answers
332 views

15.10 Unity stuck after login, even as guest, background image permission denied despite 644

Yesterday I ran the last Ubuntu security updates, and now my desktop does not open anymore. Only the purple login wallpaper is visible (my user wallpaper is different and does not appear) and I can ...
3
votes
0answers
64 views

Log in immediately following successful fingerprint scan, rather than having to hit button

is it possible to login immediately upon a valid scan rather than hitting the login button first? (similar to how Windows works in this regard) Using ubuntu 15.10
3
votes
0answers
633 views

Changing default resolution system-wide in Ubuntu 15.10

Ubuntu 15.10 uses the native resolution of the screen by default. The native resolution on my laptop (3200*1800) is too big for the size of the screen (13"), leading to a very high pixel density, it ...
3
votes
0answers
114 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, ...
3
votes
0answers
50 views

Cannot login after routine update

I went through a regular daily update a couple of weeks ago, and since then I have been unable to log in to my ubuntu account or the guest account. I have tried the solutions suggested in these ...
3
votes
1answer
86 views

What file specifies the desktop environment for a user?

I'm having problems with Unity on a slow laptop, but it's configured to autologin so I never see the login screen. Also, the screen or display driver is messed up so I don't see the far right part of ...
3
votes
0answers
361 views

unity-greeter login background won't change according to the user that is highlighted

I use Ubuntu 12.04. Recently, I change to use another Accounts Service which could remove certain users from the graphic login screen of unity-greeter. I downloaded source code from a branch of ...
3
votes
0answers
268 views

After Upgrade from 13.04 to 13.10 missing user in login screen

I have upgraded to 13.10 from 13.04 now after booting (even after updates and rebooting) my user id is not listed. It has a uid higher than the minimum in lightdm.conf. I have the user light display ...
3
votes
1answer
2k views

Why my X Server won't start as a regular user and it starts as Guest?

It won't start X server automatically as a regular user but instead shows Logon screen. When I enter my password it flashes for a second and it's back to Logon screen again. Then I tried to log in as ...
3
votes
0answers
558 views

How to get 12.04's login screen (lightdm) to display the shutdown menu like 10.04 when the computer's physical power button is pressed?

In Ubuntu 10.04 while at the login screen (gdm), when the computer's physical power button was pressed a screen popped up that offered options on shutting down the system (shutdown, restart, cancel, .....
2
votes
0answers
175 views

Ubuntu 19.04 boots to blank screen

I turn off my laptop, grub menu pops up, I clicked on ubuntu and after some time it shows me blank screen. I have set the login to automatically without any password required. It showed the ...
2
votes
0answers
125 views

Keep GDM from printing password to console?

Whenever I login with GDM, it prints my password to the console, and when logging out it is visible temporarily until GDM loads again. I would like to disable this (assuming it's supposed to do this ...
2
votes
0answers
51 views

Brightness and volume keys don't work when logged out

The flight mode key and enable/disable touch-pad keys work on the other hand. The lock screen key for some reason makes a character appear in the password entry box. Also, the volume settings appear ...
2
votes
0answers
442 views

Stuck in login loop Ubuntu 16.04

I need some advice for working towards a resolution to my current login loop issue in Ubuntu Desktop 16.04. When I try to sign in locally, after I input the correct password, the gui prompts for the ...
2
votes
1answer
103 views

Automatically suspend 18.04.1 at idle login screen

This PC is often left in a logged out state at the login screen. I have set power options to automatically suspend on idle, and these do work if a user is logged in. They do not work if the computer ...
2
votes
0answers
105 views

Login Screen — Do not hit enter key

Is there a method that will login me in withouit having to hit the "enter" key? In Winows 10, one simple enters the correct PW and is immediately taken to the desktop...no need to hit "enter."
2
votes
0answers
556 views

Login screen image not showing on Ubuntu 18.04

After installing ubuntu 18.04 I have now a noisy background when being on the login screen, there is not a nice image anymore and the login experience feels a little screwed up (tap on touchpad doesn'...
2
votes
1answer
690 views

Ubuntu slow to wake up from sleep

So, I recently installed Ubuntu 18.04 LTS on my 2014 Macbook Air 13inch (no dual boot). When I close the lid, the apple logo is still lit and the screen stays on. Because of this I usually press ...
2
votes
1answer
145 views

Custom button on login screen

Is there a way in 16.04 LTS to add a custom button to the login screen that runs a bash script? The reason I need this is for dual-booting, so I can add a button on the login screen that will switch ...
2
votes
0answers
121 views

“System program problem detected” During Login

"System program problem detected" During Login with username and password and as Guest and no password. I can not login to Ubuntu. Is there a way to resolve this without reinstalling Ubuntu 16.04 LTS. ...
2
votes
1answer
1k views

Ubuntu 16.04 Login Loop After Update

Last Tuesday, I performed an software update for Ubuntu and related software. Seeing how they required a reboot, I restarted my PC and went to log back in. Only to find that I could not log back in ...
2
votes
0answers
138 views

Fresh install of Ubuntu 16.04 - stuck on login screen

I just installed ubuntu 16.04, which I'm dual-booting with windows 10 on a separate drive. When I boot, I'm greeted with this screen and nothing else: https://i.stack.imgur.com/pbuVb.jpg I can open a ...
2
votes
1answer
812 views

Ubuntu freeze at login screen

I use Ubuntu 16.04 kernel 4.10.0-38 It boots normally and at the login screen it shows up the password box then freezes at this point the cursor blinks for few seconds and then stops I can’t move ...
2
votes
0answers
169 views

Disable other languages in login screen

I have two languages on my computer, but my password is in English. Is there any way to allow only English input when being required to login? A similar question has been asked before here, but there ...
2
votes
0answers
411 views

Ubuntu Stuck In Login Loop After Reinstall

I reinstalled Ubuntu 16.04 LTS due to getting stuck at the splash-screen for an unexplainable reason. However, now I get caught in a login loop instead. My hardware is a Dell XPS-13 9350. I appear to ...
2
votes
0answers
120 views

Mouse and Keyboard stopped working after upgrading from 14.04 to 16.04

Mouse and Keyboard stopped working after upgrading from 14.04 to 16.04. So I guess it's because the USBs ceased to work. Though I can reach the login screen, I can't really log in as I have no way to ...
2
votes
0answers
95 views

How to make the Ubuntu login screen “controls” bigger?

I am using Ubuntu 16.10 on a laptop carrying out a HDPI screen and I managed to have a decent experience until now (Large Text enabled in the universal access, and the Scale for menu and title bars ...
2
votes
0answers
76 views

how do I change only my lockscreen wallpaper?

I want to have two separate wallpaper, one for my login screen and another for my desktop wallpaper, on my Ubuntu 16.04 LTS