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Questions tagged [lock-screen]

The lock screen lets a user lock the currently-running session behind a password screen. This screen may either be blank or show a screensaver until mouse or keyboard activity is detected.

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Ubuntu 18.10 - Issue with screen inactivity and lock screen

Clean installation of Ubuntu 18.10 beta I want the screen to turn off after 1 minute of inactivity, but I do not want the system to be locked when it is activated again. So I do : gsettings set org....
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18.04 login fails after screen lock

After doing an update today, I can no longer login after a screen lock. I enter my password, the screen goes black and then returns to the login screen. The only way to login again is to reboot. ...
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Recognize user inactivity and/or lock sceen in bash scripts

In Xubuntu 18.04LTS, I test the capability to capture screen in background without interacting with the tool. To optimize this, how is it possible to: Recognize whether user is inactive since more ...
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Automatic locking screen doesn't work in Ubuntu 18.10

After upgrading ubuntu 18.04 to 18.10 I noticed, that closing lid of laptop doesn't lock screen. And after opening it back it's enough to just use touchpad to unlock screen, no password is required. ...
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Disable monitor dimming in lock screen on Ubuntu 18.04

After few hours of googling and figuring that the previous answers doesn't seem to for me, I decided to ask you guys how can i prevent screen behind dimmed/sleep, right after entering lock screen mode?...
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Thunderbird on Xubuntu 18.04.1: new mail popup appears on lock screen

I have been using Xubuntu 16.04 LTS and ~2 weeks ago upgraded to 18.04.1 LTS. Since then, the new mail notifications of Thunderbird will pop up even if I have locked my screen. Is this a bug in ...
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1answer
152 views

Gnome Energy Saving: How to turn of the watch screen?

I want to keep energy saving (12 minutes) but don't like the lock screen with the watch, whenever I come back. This two things unfortunately seem interlinked in Gnome. How can I get rid of the watch ...
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After I locked the screen and shut the lid of the laptop, I can't log in again. What do I do?

I'm running Ubuntu 18.04, on an Asus Vivobook s, with a Nvidia GeForce graphics card. Dual-booting windows 10. UEFI secure boot is enabled, though I have no idea what that means, or what that does to ...
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How to get a clock on the 16.04 Unity lockscreen?

How do I get a big clock to display on my 16.04 Unity lockscreen? Currently, I just get the pinkish default screen with a login prompt, and little time in the top corner, etc, and this only displays ...
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Large Login Box on Lockscreen

I am running Ubuntu Budgie 18.04, and I'm having some bizarre issues with the password/login box on the lockscreen. This only happens on the screen where I actually lock my laptop. This doesn't ...
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1answer
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Second blue lock screen showing after upgrade to 18.04

I use Mate as my desktop environment and I recently upgraded from 16.04 to 18.04. Since the upgrade, I now have two lock screens. If I lock my screen (Ctrl-Alt-L), I get the expected Mate screensaver,...
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Kubuntu missing screen lock and screen saver settings

I am using Kubuntu 18.04.1, and I am unable to find where to set options for screen locking, or screen saver Version of KDE framework:
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How to put suspend, turn off, reboot buttons on Kubuntu's lock screen?

I use 18.04 and there are only two options: log in and switch user. $ inxi -Sxxx System: Host: PC Kernel: 4.15.0-34-generic x86_64 bits: 64 gcc: 7.3.0 Desktop: KDE Plasma 5.12.6 (Qt 5.9....
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How to turn off the lock screen completely on ubuntu 18.04

[A lot of people have had issues with this but none of the threads have been answered. No one I could find has yet just asked to have the thing removed entirely. I also shouldn't be calling it a "lock ...
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How do I exit the lock screen for Ubuntu 18.04 in VirtualBox?

I just installed Ubuntu 18.04 on VirtualBox, however after a few minutes of inaction it got into this screen below, from which I cannot find a way to exit. How can I exit from this screen?
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Desktop is visible before lock screen appears [Ubuntu 18.04]

I'm observing a somewhat strange behavior, which seems to happen in following scenario: Privacy options: Screen Lock: On, Lock screen after blank for: Screen turns off Suspend notebook and close lid ...
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1answer
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My computer went to sleep whilst upgrading 16.04 to 18.04, now I can't log in

I was doing a distro upgrade via "sudo do-release-upgrade" but closed the lid to move the computer after some hours had passed. When I opened it again the lockscreen was there (though the installation ...
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External monitor turns on while on lock screen

Every time I lock my screen, both laptop and external monitor turn off (which it's expected). But after some time (random between one minute to five), my external monitors turns on, showing my ...
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Purple interference on the lock screen after suspend

My problem is that when laptop wakes up after suspend sometimes lockscreen is covered with purple interference for a few seconds (but clock is still displayed and shows current time). Sometimes whole ...
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Ubuntu 18.04: Gnome lock screen refuse correct password

It becomes completely annoying: Gnome lock screen refuse my correct password. I need to reboot every time, when I get into lock screen. I upgraded to Ubuntu 18.04. I have russian and english layouts (...
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Ubuntu 18.04 black screen with cursor

My screen goes black (but not off) if i don't use the computer for 5-10 mins like a screensaver but the weird thing is that the mouse cursor is visible. Is this normal?
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How to get rid of the lockscreen?

I tried to upgrade Ubuntu 16.04 to Ubuntu 18.04.1; but, the system didn’t complete its upgrade. I couldn’t pass through the lock screen and I can’t find the password box in the lockscreen. The ...
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There's multiple lockscreens/loginmanagers running at same time

I installed Ubuntu Mate, then decided to apt get install budgie-desktop. Now I have both the GNOME/Budgie and Mate lockscreens. So when I login I have to type my password twice on both screens one ...
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Universally Binding a Shortcut: Making a hotkey work in the lock screen

I was having problems with getting my sleep button to hibernate my computer, so I created a script that hibernates my computer for me, as a workaround. This is great for when I am logged in. However,...
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Lock screen is weirdly broken on Ubuntu 18.04 / Wayland

Thanks in advance for helping me figure out this strange problem I've had since upgrading from 16 to 18.04 -- I run Wayland now, and I love how much better it is at handling multiple monitors on my hi-...
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change songs in lock screen ubuntu 18.04

while using gdm3 it is possible to change songs,stop playback while in the lock screen. Now in lightdm its not possible. does anyone know how to do it?
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1answer
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Ubuntu 16.04 login screen inactive

Good Afternoon, I am using Dell Inspiron 5110 with Ubuntu 16.04. After update several days ago, my display started to dim. I looked many opinions on the matter and i came to the conclusion, that ...
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1answer
45 views

Disable user intervention until password entered (not logout)

I'm looking for an option to turn user input off (so to say enable read-only mode) leaving the same picture on screen without logging out from the system, but requiring password to be entered to ...
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1answer
58 views

How to resize lock-screen background using the command line on ubuntu 18.04?

What the title says. The command gsettings set org.gnome.desktop.background picture-options "scaled" works for the desktop, but obviously not for the lock screen. I have no idea what the schema for ...
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0answers
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Lock Screen on closing lid(not suspend) Ubuntu 16.04 gnome

I was previously using Ubuntu 16.04 Unity. I changed to gnome. Earlier it used to lock the screen when I closed the lid. I could listen to music without any trouble. Now on closing the lid it suspends ...
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1answer
129 views

Cannot change a keyboard layout on the lock screen

I have two keyboard layouts installed in my Ubuntu 16.04 LTS + GNOME. Sometimes, after some idle period, my computer goes into a lock screen when the layout is the other than I need to type my ...
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1answer
2k views

Ubuntu 18.04 change Login Screen theme (not wallpaper)

I can't seem to find any way to change the default orange on black theme on Ubuntu 18.04. I am using Adapta theme on my desktop, but it does not get applied to the login screen. Please notice that I ...
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1answer
121 views

How can I change the Lock Screen (not Wallpaper) background?

Currently I want to change the lock screen picture. I cannot set it to another picture that I want. The current pictures are the ones I set up when I first installed Ubuntu. I can change wallpaper ...
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Ubuntu 18.04 - prevent displays from sleeping on Lock

I can lock my screen using Super + L keyboard shortcut or the button on the top right corner of the desktop (along with the power and settings) but this immediately turns my monitors off. I want to be ...
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6answers
4k views

Why can this command unlock my lock screen without password? (Security question)

I work at an IT company, started here not so long ago. Many of us are using linux, and I have discovered a problem or security issue with Ubuntu. As it is now, locking the screen is of no use in case ...
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2answers
242 views

Can't find lock computer option in ubuntu 18

When I click ctrl+alt+del I wan to lock my computer (not log off). I can not find the lock option, only log out and it says [user] will be logged out automatically in 60 seconds How to enable ...
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1answer
192 views

GDM3 LockScreen - User name Background Color - How to Change? Ubuntu 18.04.1

i am with Ubuntu 18.04.1 Is there a way to change the Orange Color in the below Image? its GDM3 LockScreen.
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1answer
248 views

Keep a laptop running with closed lid

I am trying to keep my laptop running with the lid closed. What I've done so far is: In the file /etc/systemd/logind.conf add HandleLidSwitch=ignore both for docked and plain mode. This didn't do ...
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How to suspend after a certain period of time on lock screen and on AC? (Ubuntu 16.04)

I want to suspend automatically only if on lock screen and after a certain period of time (on AC). Is it possible? Scenario: plugged to AC dockered external monitor PS: when on battery it does ...
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Cant login after screen locks

Im running Kubuntu version 18.04. After locking the workstation. I cant login, get message unlocking failed. I have to restart the computer to get back in. Please help Regards Mattias Kihl
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Laptop doesn't work after closing

I have Xiaomi Notebook Pro (CPU: Intel Core i7-8550U, GPU: GPU: GeForce MX150) with Ubuntu 18.04. After "sleep mode" with open laptop it works fine. But after closing the laptop I see the next screen.
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Mouse cursor lags behind after screen lock / user switching

I recently created a second user account on my computer due to somebody else needing to use it. It appears that when I lock my session to let them open one with their account, the mouse cursor ...
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0answers
472 views

Ubuntu 18.04 - how can I prevent my display turning off immediately when I lock the screen? [duplicate]

My display turns off when I lock the screen (with ctrl+alt+l). This is pretty anoying, because when I want to unlock immediately after that I need to wait like 3 seconds until my screen turns on. ...
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1answer
37 views

How to unlock the screen at the start of the laptop [closed]

I set two passwords, one for the screen and one for the startup. When I start the laptop, appears a dialog box that says "Enter password" with 8 spaces to type. This is before you can see any screen ...
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0answers
28 views

Is a started via terminal script program halted when screen locks?

I would like to ask pretty much what the title says but I should better explain in details my situation. I am running Ubuntu 16.04 and I have installed Protege. I am trying to perform a task(export a ...
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2answers
664 views

How to not show the clock screen when unblanking screen

I have the lock screen disabled and the screen goes blank after 10 minutes. When I return to my PC and move the mouse, the screen unblanks and I'm presenting with a digital clock display (time and ...
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1answer
34 views

How to autostart `xautolock` in Lubuntu?

I put the command in: .config/lxsession/Lubuntu/autostart but it doesn't seem to be executed. I found a strange workaround (see below).
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2answers
766 views

Ubuntu 18.04 opening system setting logs me out

I've recently installed Ubuntu 18.04 in a dual-boot configuration with Windows 10. I noticed today that, when trying to open system settings, Ubuntu seems to log me out to the lock screen. When I log ...
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0answers
382 views

Ubuntu 18.04 (Gnome) authentication error when logging after lock/suspend

I have an issue with screen unlocking. It just rejects my password. And I noticed, it depends on time how long it was locked/suspended! If I unlock 10-20 min. after locking it accepts password and ...
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0answers
84 views

Lockscreen is showing glitches on Ubuntu 18.04

When I turn on my computer the lockscreen is glitched like there are white lines. Logging in isn't hard but it just looks disgusting.