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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20 views

Error ubuntu 20.04 lock sreen break layout

I don't know when it happens but now, My lock sreen looks like a website with lost CSS file. Please help me to restore my lock screen.
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No logind.conf file in /etc/systemd/ in Ubuntu 20

My laptop does not suspend when I close the lid. Instead, when I open it, it freezes for around 5 seconds and continues working without asking for a password. So I checked online for a solution but ...
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Xubuntu 20.04 LTS Cant Change Login-Screen Resolution (NVIDIA graphics)

I recently got a ThinkpadP50 with a fresh Xubuntu 20.04 LTS install CPU: Intel i7-6820HQ (8) @ 3.600GHz GPU: NVIDIA Quadro M1000M, using nvidia-driver-440 However, I'm having an issue where my lock ...
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Can't lock screen with shortcut on Ubuntu 20.04 gnome

In shortcuts i have Super + L for locking screen. But on pressing it - nothing happens. In syslog: gsd-media-keys[1979]: Couldn't lock screen: Cannot invoke method; proxy is for the well-known name ...
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DualMonitor configuration resetting on lock screen after reboot

Hollo, I am not sure I've written correct title, but it's not easy to name problem in few words (especially for non-native English speaker), so be forgiving please. I've two monitors connected to my ...
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Long waiting for login prompt at screen lock. Ubuntu 20.04

I have just upgraded Ubuntu 19.10 to 20.04. I hit on something that force me to wait about 20 seconds for login prompt at screen lock after I push keys. This happens every time I need to log in after ...
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1answer
72 views

Ubuntu 20.04 not asking password when coming out of sleep

Ubuntu doesn't ask for my password when I'm getting out of sleep when closing my laptop and reopening it. I've followed everything listed here : Ubuntu 17.04 no longer asking for password when coming ...
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Ubuntu 20.04 (Gnome3 / LighDM) > lock screen on suspend

Hello :) It might be a [duplicate] but none of the answers I found work for me. brieucdug@sildenafil:~$ uname -a ; gnome-shell --version ; lightdm --version Linux sildenafil 5.4.0-31-generic #35-...
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After upgrading to ubuntu 20.04 Lockscreen not working

I tried the shortcut Super + L nothing happens. In the settings, have set lockdown timer for 1 min, nothings happens after that. In the right corner menu after clicking lock item, it is showing ...
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Can't login after chown command [closed]

I just installed elementary OS dual booted with windows 10. After the installation. I saw that the / root directory has every file and folder locked. I can't rename, delete or create anything there. ...
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Automatic screen lock not working Ubuntu 20.04

From Settings -> Privacy, I got Automatic Screen lock -> turned on Lock Screen on Suspend -> turned on None of them locks my screen. But the manual lock option works fine. (I did get some error ...
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How can I change the time format on the Ubuntu 20.04 lock screen?

I just installed Ubuntu 20.04 LTS on my laptop and would like to change the time format on the lock screen to 12-hour time. Is there a file on the system I can edit to change the format, or do the ...
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Icons and text become white squares after suspension

I don't know how to describe this further but it happens occasionally after suspension and I managed to (temporary) fix it by restarting. This is how the desktop looks The lock screen I had a typo ...
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How to customize Lock Screen theme in Ubuntu 20.04

I changed the gnome shell theme of the login screen to Yaru-dark by following instructions in this answer. I did notice the dark calendar and system menu when I log on after reboot. However, when I ...
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Double query for password when waken up in Ubuntu 20.04

recently updated to ubuntu 20.04 from ubuntu 18.04. But, when I turn on my laptop from sleep, After writing my password it's again showing the lock screen. I have to click the user's button and I have ...
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Budgie lockscreen persists after attempting to reinstall gdm3

I switched from the new gnome DE to ubuntu budgie, but when I switched back, I realized that the budgie lockscreen was still in place. Here are the commands I used to attempt the switch: sudo apt ...
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1answer
258 views

Change Ubuntu's purple login screen to GNOME 3.36's

My login screen on boot is Ubuntu's purple login screen. On suspend, the login screen is GNOME's new one, with the blurred desktop bg. How can I get rid of Ubuntu's and only have GNOME's? Settings ...
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Security Issue: Ubuntu 20.04 missing power setting to lock screen when lid closed

In 19.10 and before, when I closed the laptop lid, the computer would lock the screen and suspend. Now, it suspends, but when I (or anyone else) opens the lid, the session resumes without requiring a ...
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Ubuntu 19.10 is locking screen suddenly

I have an ubuntu 19.10, but from Thursday the screen is locking randomly while I am working, ubuntu ask to me my password and the screen unlocks, but I have every program close. I have thought that ...
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1answer
108 views

Unable to lock screen

I'm using Ubuntu 18.04 with default DE on my laptop. I have an external monitor that I used for weeks without problem. (maybe during an update) I closed the lid and then the desktop appeared on the ...
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Pause on Lock for Spotify?

Does anyone knows how to get "Pause on Lock" to work for Ubuntu 20.04 ? Terminal says, "sudo install pause-on-lock /usr/local/bin/" https://www.omgubuntu.co.uk/2017/08/ubuntu-pause-music-screen-lock-...
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loginctl lock-session/unlock-session Black screen

I’m running Ubuntu 20.04 with the ubuntu-desktop installed on a Raspberry Pi. I had a bash script running in the background to control lock/unlock session using the loginctl module. But every time the ...
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Lock Screen - Not unlocking when switching user in Ubuntu 20.04 - Is it a bug?

I have only one root user account. In Ubuntu 20.04, I clicked the "Lock Screen" option from the top right corner. Once we get the unlock login screen, there is a user icon in the bottom right corner....
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Cannot log on as other user with Bionic and (vanilla) GNOME without first logging off

NB: This is not the same issue as in this question (Unable to switch users at lock screen. Unity, Ubuntu 18.04)! In my case lightdm isn't even installed and so reinstalling it is not an option. I am ...
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Stuck at lock screen login loop

Lately I tried to change the path after installing pycharm. They recommend to logout. After that I'm not able to login. I'm using ubuntu 20.04lts.
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DPMS Suspend on Screen Lock

I'm running Xubuntu 20.04 on my laptop (Acer B115-M). I'd like to have the following behavior related to the lock screen, and screensaver: Ctrl+Alt+Del, aka xflock4 should lock the screen and turn it ...
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3answers
777 views

Lock screen blur missing in 20.04

After upgrading to Ubuntu 20.04 featuring Gnome 3.36, the lock screen displays a solid purple color, instead of the blur-over-wallpaper effect. How can I fix this? Gnome 3.36 removes the separate ...
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398 views

Black Screen with flickering on Ubuntu 20.04 LTS

I recently updated to 20.04 latest update and screen flicking on first time logging was gone (it happened in 18.04 in my case) however once I manually lock the screen or even if it automatically ...
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Lock screen wallpaper option on ubuntu 20.04 LTS is not available?

Lock screen wallpaper option on Ubuntu 20.04 LTS is not available unlike in 18.04 LTS.
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Shut down the computer after 3 failed login attempts

I would like to set up the PAM module such that the system is shut down after 3 failed login attempts. I know pam_exec can be used to run a script with one failure. With more than one failure, I ...
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1answer
325 views

Detect that the system is locked

I want to detect if Ubuntu 19.10 screen screensaver is locked at a particular time, and find out how long it has been in this state. If the system is locked for a certain amount of time (whether ...
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Why does Ubuntu 19.10 spuriously locking my screen?

have the screen lock set to 15 minutes, however in 19.10 the screen lock keeps activating periodically while I am using it. This has been happening consistently for the past week. I have three ...
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1answer
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After upgrade to 19.10 screen lock pops up 5-10 minutes after I log in

I just upgraded to 19.10 on my desktop, which uses Intel integrated graphics (no separate GPU). Running with two monitors. Between 5 and 10 minutes after logging in, the screens go black and then I'm ...
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Random screensavers on VNC server (resource intense)

I am currently using a VNC server on my desktop (Ubuntu 16.04 Mate DE) at work to work from home (through an intermediate SHH server). However, it has now started to use random screensavers when idle ...
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How to change keyboard layout when screen automatically locked?

I'm still using unity7 as my desktop environment. My problem is sometimes when screen locked automatically I can't change keyboard layout using dropdown menu neither shortcut (alt+shift). It seems ...
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Disable sceen blank when screen is getting lock

When my computer is getting lock (either by auto screen lock or by super + L ), I am getting also screen blank. I would like to disable the screen from getting blank but not from auto lock so I will ...
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323 views

Ubuntu 18.04, GNOME, crash after unlocking lock screen

When screen gets locked automatically or when I do it manually (Win Logo + L), not every single time, but most of the time, when I try to unlock it, first of all, it takes long time (say 15-20 seconds)...
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1answer
160 views

I cannot log in a VNC session after the screen locks: “Authentification error”. Why?

I've setup successfully a tigervnc server. I've been able to successfully remotely log in the VNC session using a viewer desktop client or Apache Guacamole. Now is the day after and the host ...
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Xscreensaver not working properly

I don't understand Linux and sys-admin stuff, but I have installed recently xscreensaver Ubuntu 18.04.4 LTS as described here and I have followed all the steps. If I lock the screen with Cntrl+Alt+L ...
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Ubuntu 19.10 getting stuck at boot time

ubuntu frozen screen while booting My ubuntu gets stuck like this while booting, I have tried https://itsfoss.com/fix-ubuntu-freezing/ but it didn't work for me instead increased the problem. I am a ...
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1answer
139 views

Ubuntu 18.04: disable screensaver

I am trying to disable the screensaver in Ubuntu 18.04, that is I don't want ever the screen to "go black" after some time. This is different from disabling auto-lock etc. I guess I am confused ...
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1answer
35 views

Ubuntu 19.10 keeps locking screen despite screen locking / dimming etc etc

I have disabled all screen locking / dimming / power saving. Nevertheless Ubuntu 19.10 / Gnome keeps randomly locking screen. (Started about 3 weeks ago when I temporarily changed settings to faster ...
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1answer
62 views

Disable lock screen after screensaver

I just wiped 16.10 and installed 19.10, and turned off all screen-lock features as this is my personal desktop pc; there's nobody to lock out. The machine is always on but turns the screen off after 5 ...
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1answer
264 views

Way to manually enable Screensaver/Clock Screen?

Here's a problem I have: I step away from my laptop, a notification/message arrives (e.g., an email), Gnome Screensaver activates (i.e., the clock screen), I return to my computer and swipe the ...
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49 views

Ubuntu 18.04 can't login after software update

I have a small NUC which acts as my network gateway. I normally have a terminal session running on a console and run whatever software updates are offered as and when. Frequently (not every time but ...
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314 views

Wake immediately after display sleep

I've upgraded from 16.04 to 19.10, and here's one annoyance I face: I have disable screen lock, so I don't need to type my password after screen sleep. However, after my screen goes to sleep, and I ...
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99 views

How can I remove static cursor image from the screen?

I have Ubuntu 18.04. I am seeing two cursors(Mouse cursor) on my screen. One is active and the other is just fixed like an image. It sometimes vanishes and sometimes reappears. It often happens after ...
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1answer
107 views

Lenovo T495 - External screen keeps waking up laptop's screen

I tried searching the web for my issue, but Google and other platforms keep showing solutions for people not being able to wake up their screens, whereas what I'm looking for is kind of the opposite. ...
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1answer
58 views

18.04 GNOME3 Shell bug: Dash doesn't return when waking up screen saver or unlocking the screen?

Image of problem So this happened to me before when using Ubuntu in the past. This has proven to be very annoying and the main reason I stopped using Ubuntu before. I've never been able to solve the ...
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1answer
22 views

How to remap “lock screen” button to suspend

I want to remap "lock screen" button on my keyboard (it is special button, not Win+L combination) to "suspend" instead of "lock" I tried to prevent screen lock all together in hope the "Settings/...

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