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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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22.04: Is it possible to allow any valid user to unlock the screen?

I have what may seem like a strange need: I would like to allow any valid user to unlock a screen that has been locked. Right now, only the user that actually started the X session can unlock the ...
Glen Baker's user avatar
1 vote
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156 views

Screen lock logs me out completely. 24.04

I've clean installed Ubuntu 24.04. After some time of inactivity, the screen locks (even though I've disabled this in settings, not sure why the screen locks) and when I enter my password to unlock, I ...
augment's user avatar
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Screen lock keeps occuring on 24.04 even though I believe I've disabled it

I've recently did a fresh install of 24.04. I'm having an issue where I believe I have disabled screen lock, but if I leave my computer for some time, it is locked when I come back to it. I only want ...
Erotemic's user avatar
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-3 votes
2 answers
1k views

Unable to login to Ubuntu 24.04

I'm unable to login to Ubuntu 24.04. When trying to login I get this screen.
vijay hari's user avatar
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How can I have the user switcher default to being onscreen the Ubuntu 22.04LTS lock screen?

I've just installed the default install of Ubuntu 22.04LTS Desktop edition after a hiatus of using Ubuntu for a few years. It is installed on an office computer and there are 2 very regular users that ...
Tim Wiel's user avatar
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73 views

E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied) | How to fix [duplicate]

E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied) E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root? it show on terminal ...
Tanat Pinkeaw's user avatar
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30 views

High Resolution Display Reverts to poor Quality on Login and Top Bar in Ubuntu 20.04

I recently installed Ubuntu 20.04 on my MSI Modern 15. Upon starting the system and reaching the login screen, the display resolution is noticeably low, around 1000x800. Once logged in, the resolution ...
Apps Front's user avatar
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Screen Freeze after sleep mode

When I lock my laptop using the shortcut (WINDOW + L), occasionally upon reopening, the screen freezes. It's not a consistent issue, but it occurs about one-third of the time. To resolve it, I've ...
user64bit's user avatar
2 votes
0 answers
58 views

Lock Screen + Photos Slideshow?

In Windows 11, I can select to have a random slideshow of pictures in the lock screen. I can select a folder, and it takes all pictures from there and randomnly shows then in the lock screen. Is it ...
M2evorah's user avatar
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141 views

How to get xscreensaver/gnome screensavers working on Ubuntu 23.10

I am getting this error when trying to use xscreensaver xscreensaver-systemd: 10:30:07: connection failed: "org.freedesktop.ScreenSaver" in use by pid 2462 (/usr/libexec/gsd-screensaver-...
Meta Prodigy's user avatar
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Blockscreen lost in Ubuntu 22.04

I'm having problems with the behaviour of ubuntu 22.04 desktop. I don't know why, the block button stoped working. I mean the "lock" icon key in the Logitech MX Keys. I think it stoped ...
César Arquero Cabral's user avatar
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Need further assistance with implementing autologin followed by an automatic lock screen function (Ubuntu 22.04.3)

I made this post previously, and I have provided a thorough description of what I want to achieve along with every step I've made towards trying to make it work. The post seems to have died, and I ...
qwertyuiop's user avatar
1 vote
0 answers
30 views

Is it possible to make the lock screen's background a feed from the front-facing camera?

People tend to behave better when they know they're being watched, even by a machine. To deter people screwing with my desk, is it possible to have the lock screen background be a (blurred) camera ...
owicalagu's user avatar
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307 views

Autologin and automatic screen lock methods not working (Ubuntu 22.04.3)

I can't seem to get what is described in this thread to work... I even tried entering the command into the terminal, but all I get is command not found. I have also tried the startup applications ...
qwertyuiop's user avatar
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24 views

Ubuntu 23.10 Multiple user eror on lock screen

I have some users on my Ubuntu 23.10, after I choose the user on the lock screen to log in, the screen always returns, before I can insert my password.
Royyan Masyhadi's user avatar
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XFCE 22.0.4 won't wake up after hibernation

XFCE 22.0.4 won't wake up after hibernation, I did all the hardware stress tests and everything is fine with the hardware, but at the system level there is probably a problem, when I logout then and ...
blogpowerlife.com's user avatar
1 vote
1 answer
213 views

PIN on Kubuntu lockscreen (KDE Plasma 5.27.8)

I am new to linux and have the newest Kubuntu 23.10. I'm loving the customization options but am having a problem right now with the lock screen. I followed this (https://fostips.com/log-into-linux-pc-...
Alex's user avatar
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Ubuntu 22.04, locked screen idle after being given password

I have set my automatic screen lock after 5 minutes of not doing anything. Afterward, I can just log in back to my session. It used to work well until today. Now, whenever my screen is locked, I ...
MvW's user avatar
  • 11
1 vote
1 answer
249 views

How do I prevent Ubuntu from sleeping while MPV is running?

When I watch movies in the Videos app, the screen does not dim or lock while the movie is playing. However, in MPV, the screen dims and eventually locks following my default sleep settings. In general,...
Amanda's user avatar
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1 answer
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Delay after unlocking screen?

I'm running Lightdm on Ubuntu 22.04, and I've noticed that after I unlock my screen, my desktop appears, but it's completely frozen for about 15 seconds, which is frustrating. Before, in 20.04, I was ...
Cerin's user avatar
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Show clock on all displays in lock screen

I have 2 or 3 displays (it depends) Normally on lock screen i see clock and other things only on the main display. And only a blured wallpaper on other displays. Is there a way to make it show clock ...
Lenald's user avatar
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1 vote
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20 views

Total keyboard, mouse and screen lock

I want to make an alarm script to play a video and lock totally the keyboard, the mouse and the screen until the video finish. I really need wake up on time and sooner haha This is all I have: #!/bin/...
Ruben Gael Leal Espinosa's user avatar
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Set screen blank and suspend timers on certain times on ubuntu 22.04

I would like to have several configurations about screen blanking and suspend times based on the time of the day and day of the week so, from 9 to 5 on weekdays, the screen stays on and the computer ...
metichi's user avatar
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How to Unblank lock screen

I'm using Ubuntu 22.04 and I have connected a monitor to my laptop. After locking, the screen goes blank after 10 seconds which makes the monitor looks empty. So I wanted to keep the lock screen alive ...
Ajay's user avatar
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1 vote
1 answer
2k views

Ubuntu 22.04: How to change login screen background?

How to change the login screen background on Ubuntu 22.04?
V R's user avatar
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96 views

What does Ctrl+Alt+End is for and how to disable it?

I'm using Ubuntu 22.04.3 Jammy LTS desktop, and everytime i press Ctrl+Alt+End the screen goes totally black and i can't get back from it. I know the computer is still responsive because music is ...
Chema's user avatar
  • 21
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0 answers
78 views

Getting a better lock screen

Why is it I can configure my login screen to look like this (using a script to set the gdm background that seems to break and have a new version for each version of Ubuntu?!?): But all I can get out ...
Andrew DeFaria's user avatar
0 votes
1 answer
252 views

How to fix XFCE's xflock4 reapeatedly launching the screensaver?

I just upgraded to Xubuntu 23.04 and it turns out that now, xflock4 repeatedly launches the screensaver when locking the screen, even if I keep moving the mouse and typing into the keyboard, it keeps ...
victorbarceloslacerda's user avatar
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185 views

Ubuntu 22.04 - lock screen, cannot reenter the desktop

After booting Ubuntu 22.04, I enter my password and log into Ubuntu. So all fine so far. If I leave my notebook unattended for some time, my computer turns into suspension mode. Then when I try to end ...
user823's user avatar
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kde screenlock wont accept password and have to first press switch user

I am on kubuntu jammy and I have run into a problem. when I lock screen with meta+L I can put in a password but clicking on the button or pressing enter wont work, it will show the animation of being ...
Usermaxn's user avatar
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0 answers
51 views

How do you lock the screen on suspend but not on hibernate when using lightdm's screen locker?

I want lightdm's screen lock to function on suspend but not hibernate, because I do not want to enter both a password to unlock the computer and the lightdm screen-lock password. This question has ...
Ronald's user avatar
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2 votes
0 answers
85 views

My Ubuntu 22.04 not waking up from after locking device(window key + L)

My Ubuntu 22.04 not waking up from after locking device(window key + L) My device is Asus vivobook 16x Ryzen 7 5000 series
Adithyan Ashok's user avatar
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0 answers
68 views

Which EVENT triggers DPMS to blank out screen

I deinstalled almost everything and set up i3. I want to use only i3lock and nothing extended Now I want i3lock to trigger whenever dpms blanks screen out. The question is, which event is making the ...
LG21's user avatar
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0 votes
1 answer
143 views

Make GNOME keyboard shortcuts available on lockscreen (login screen )

I configured some usefull custom keyboard shortcut via gnome built-in shortcut feature (for example a keyboard shortcut for quick suspending ). However, when I lock my computer, they are not available ...
n0tis's user avatar
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1 vote
0 answers
145 views

Locking the screen on Ubuntu 22.04 leads to spontaneous restart

This is a problem I've been plagued by for a while now. I'm using Ubuntu 22.04 on a Lenovo V330-15IKB laptop. I use an external hard-drive connected to it. The hard-drive is a TOSHIBA USB 3.5-HDD 1 TB ...
Ayon Mukherjee's user avatar
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97 views

double lock screen in Xubuntu after upgrade from 18.04 to 22.04

I made two successive upgrades of Xubuntu: from 18.04 to 20.04 and just after from 20.04 to 22.04. The second step had some failures due to root partition becoming full, but terminated. I now have ...
PlasmaBinturong's user avatar
3 votes
0 answers
1k views

What default screensaver does a freshly installed Ubuntu 20.04 or 22.04 have, and how to check if it is active?

I had the impression that Ubuntu had Gnome screensaver or xscreensaver by default. But when I tried gnome-screensaver-command --query, I'm shown the error "Command 'gnome-screensaver-command' not ...
Nav's user avatar
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0 votes
0 answers
191 views

Lock display - no password is required to get back. Is it normal?

I expect the system to require a password when I have locked the display using the menu in the up right corner. It requires a password in the lock screen to get back to desktop. But not always!!! ...
Petri Raatikainen's user avatar
1 vote
0 answers
115 views

How to lock the screen when the laptop lid is closed in Ubuntu 23.04?

I have the following entries in /etc/systemd/logind.conf: HandleLidSwitch=lock HandleLidSwitchExternalPower=lock but it doesn't help even after reboot.
khteh's user avatar
  • 153
1 vote
0 answers
801 views

howdy is not working on ubuntu 23.04

I recently upgraded my system to Ubuntu 23.04. However, Howdy is not functioning properly on the lock screen or any other authentication process. I attempted to reinstall it, but it did not solve the ...
Arad Afzali's user avatar
1 vote
1 answer
5k views

How can I change the KDE Plasma lock screen theme?

I have customized nearly everything I wanted and I think it looks perfect except for the lock screen. I looked everywhere in the settings and there is no option to download a theme or make changes to ...
stucklucky's user avatar
0 votes
0 answers
49 views

Can I display lock screen when I unplug the charger?

I'm running Ubuntu 22.04.2 LTS and want to display the lock screen when I unplug my charger. Is there a script, plugin or program that will let me do this?
MalcolmInTheCenter's user avatar
1 vote
0 answers
152 views

Bluetooth headset stops working on screenlock and after restart on 22.04.2

I've updated the system this morning and noticed that my Bluetooth headset stops working upon restart or screenlock on Ubuntu 22.04.2 with Gnome 42.5. To fix this I have to go Settings > Sound and ...
Leszek's user avatar
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3 votes
0 answers
148 views

check last lock time

I need to check the last time that I locked my Ubuntu LTS 22.04 Desktop system. for example for login time I use this command: cat /var/log/auth.log | grep unlocked but can not find any log event for ...
Bheid's user avatar
  • 141
1 vote
1 answer
347 views

What are these notifications which only appear on the lock screen?

Sometimes when I lock my screen there are notifications at the bottom When I click them nothing happens. When I unlock the screen I can't see them anywhere. What is causing these notifications? How ...
spraff's user avatar
  • 383
0 votes
0 answers
160 views

Ubuntu 20.04 doesn't ask for login password anymore after suspend

I'm using Ubuntu 20.04.3 (kernel 5.16.0). Long time it used to work normally, but recently it doesn't ask me password after I suspend the machine anymore. Checked in Settings->Privacy->Screen ...
haxpor's user avatar
  • 209
1 vote
1 answer
2k views

Ubuntu 22.04 LTS screen blank does not respect settings

OS: Ubuntu 22.04.1 LTS Whatever settings I make to Screen blank (never or 15 minutes) the screen goes blank after 1 minute. It's very annoying, sometimes while reading an article if I don't move the ...
Marius's user avatar
  • 173
0 votes
0 answers
166 views

Easy desktop unlock

I am writing because I would like to use some simple way to unlock my PC desktop. A few years ago I used BlueProximity, but it is deprecated, and the Python fork has also been 2 years out of ...
Javier Barragn ajavibp's user avatar
1 vote
0 answers
35 views

Unresponsive after screen lock; sleep restores responsiveness, but I lose my GUI session

I have been finding over the last few days that often (but not always), after I have pressed the screen lock button, my laptop will not wake, no matter which keys or buttons I press. This is a new ...
santa's user avatar
  • 21
3 votes
1 answer
731 views

22.04 External monitors turn off/go to sleep when laptop is suspended, while all settings are set to disabled

I use my (work) laptop always with the lid closed connected with a dock and 2 monitors (one monitor directly connected to HDMI another plugged into the dock with HDMI) this works fine. But when i ...
Juriaan's user avatar
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