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Questions tagged [lock]

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Ubuntu 22.04 won't wake after screen lock / screen dim

I have a fresh installation of Ubuntu 22.04 and it won't wake after screen lock. This is true for both, X11 and Wayland (also disabling Wayland for gdm3 doesn't help). System suspend works fine, only ...
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1 vote
0 answers
16 views

'Files' icon on lock/login screen

Recently I installed Ubuntu 20.04 and noticed something upon the fresh install that I hadn't seen in earlier versions: a small files icon on the bottom of the inlog screen (as pictured in the ...
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0 votes
0 answers
24 views

Ububtu Touch on Google Pixel 3a XL fastboot flashing lock

I've just installed Ubuntu Touch on a Google Pixel 3a XL (well installed it several times on three of these phones) but after installing if I re-lock the bootloader with fastboot flashing lock it ...
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How To Remove LOCK From System Menu Settings

Is there a way to REMOVE the option for LOCK that sits between SETTINGS and POWER OFF as seen in this pic so that it is NOT THERE at all:
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0 votes
2 answers
46 views

All my Files are locked and I can not modify them, how do I unlock them?

Hi to Ubuntu Community, I was opening one of my folders when I noticed that the folder, and all the others around it, had a lock on each one, and then disappeared. And now, when I want to delete, ...
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0 votes
0 answers
22 views

The lock on my Linux Ubuntu doesn't work properly

I'm having a problem with my Linux sign lock. It was working fine before, but these days the lock doesn't work properly, I just click the cancel button, and the lock disappears, and I can continue ...
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0 votes
1 answer
56 views

Lock the Computer over Night and on Weekends

Given my computer runs on Ubuntu, and I can install on it whatever I like: If I would want to prevent myself from using the computer in the night and on the weekend, what software solution comes ...
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0 votes
0 answers
123 views

After installing enum4linux on Ubuntu the wifi button blocked

The wifi button locked after installing enum4linux. I tried to format my device, but the button didn't change. I tried to install Windows the wifi works, but the color of the button stayed the same. I ...
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0 votes
1 answer
82 views

20.04: Is it possible to lock the workspaces panel "out?"

I have a 27" x 2K monitor so plenty of viewing area. Is there some way I can lock the workspace panel in the out position? Currently I have to Tap the "Super" Move the mouse to the ...
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0 votes
0 answers
81 views

Need advice for ubuntu-touch lockscreen issue

Whenever I lock my pinephone I'm unable to get back into the phone. It's just showing a black screen no matter how often I press the power button. Thanks in advance. I downloaded the latest image here....
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0 votes
0 answers
56 views

Changing text on lock screen (XFCE/Xubuntu)

I'm trying to change the text on the top-left of the lock screen (along the top bar) from "Ubuntu" to my own string. I've checked the LightDM GTK+ Greeter Settings and Screensaver Settings ...
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0 votes
0 answers
16 views

Directory's padlock

Am trying to develop a game using libGDX. Have downloaded the JAR file and have trouble when opening the project that's been generated by libGDX. When being inside the Desktop directory in the GUI ...
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0 answers
10 views

Problem with lock files while installing Vulkan [duplicate]

I am trying to install Vulkan on Ubuntu 20.04 by following the steps given on this website: https://linuxconfig.org/install-and-test-vulkan-on-linux. I am following the steps for AMD, not NVIDIA. When ...
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0 votes
0 answers
34 views

Screen lock closes all apps

I recently updated to Gnome 40 and I noticed that when I lock the screen all running apps shut down. Is there a way to fix this?
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2 votes
0 answers
57 views

Screen lock not working (Window+L) not working

I am using Ubuntu 20.04LTS. When I upgraded my system from Ubuntu 18.xx/19.xx(sorry i don't remember) to Ubuntu 20.04, my screen lock suddenly stopped working. Earlier when I press Windows(Super) + L, ...
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2 votes
0 answers
49 views

How to lock a partition with Ubuntu so that it won't be accidentally wiped during an OS installation?

I want to install Arch. I have no use CLI-installer. So I am scared that I delete my important data in a partition. Can I lock the partition for saving data? I use ubuntu. Can I do it in ubuntu? Or is ...
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0 votes
1 answer
125 views

Folder showing lock icon in Ubuntu

I have a folder showing a lock icon. I can't execute any programs that are in this folder. I have tried to run the commands: chmod 777 folder_name and sudo chown -R USER:HOME folder_name When I do ...
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0 votes
1 answer
394 views

Error while installing MySQLServer

First of all when I try to install mysql server with sudo apt install mysql-server, it is stuck generally at the stage %81 and waiting last lines like below mysqld will log errors to /var/log/mysql/...
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1 vote
0 answers
40 views

Setting a Time Limit on Apps

With online school, working productively online is a big focus for me right now. I was wondering if there was a way, whether through a program or code I could lock some of my apps so I can't use them ...
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3 votes
1 answer
287 views

USB bug which locks the kernel

I manage a few remote machines installed at a manufacturing facility, which run Ubuntu 18.04. For months I had seen unexpected kernel locks, which I could not explain. By locks I mean that the machine ...
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0 votes
0 answers
54 views

unlocking screen returns to login (lightdm)

Unlocking the screen for an openbox session returns to the lightdm login screen. I want to not return to lightdm or allow to switch away from the current logged in user. Had this working in 16.04 but ...
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0 votes
2 answers
517 views

How do I disable automatic screen locking in Xubuntu?i have tried many ways but still not working

After about 10 minutes, Xubuntu the latest version goes to sleep by itself although I have changed the power setting and I put everything on never, besides I have disables locker program in startup ...
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0 votes
1 answer
110 views

LibreOffice creates lock file

I'm unable to access libreoffice files in Ubuntu.It's creating lock files and not opening. Why is it happening? Please tell the solution.
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0 votes
2 answers
1k views

Can not enter password on lock screen in 20.04

I was able to enter my password on ubuntu purple focal fossa lock screen (however i never wanted this screen to appear). Until now. Today i tried to enter the password, but failed to do this. The ...
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2 votes
0 answers
144 views

Automatic Lock Ubuntu 20.04.1

Ubuntu 20.04.1 LTS, locks automatically. And after this sound output switches to dummy output. The sound setting gets normalized after restart only. And all the processes taking place terminates. Help ...
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2 votes
0 answers
392 views

Can not disable screen locking after suspend in 20.04

I updated from 18.04 to 20.04 and since then unable to disable lock screen, despite it was disabled in 18.04. Corresponding setting in the gui does not take effect, so does gsettings set org.gnome....
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0 votes
1 answer
868 views

Ubuntu locked shared files

I have Samba in Ubuntu, where I share one Directory with name "Kurier" When I paste to this directory new file from other device, I see this file in Ubuntu like Locked. I can unlock this ...
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2 votes
1 answer
15k views

E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 5200 (apt) [duplicate]

E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 5200 (apt) N: Be aware that removing the lock file is not a solution and may break your system. E: Unable to acquire the dpkg ...
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0 votes
0 answers
134 views

Unable to Start VMware due to .lck - How To Fix?

When I try and start VMware, I get this error: I found this .lck directory, which contains a M45876.lck file. I am not sure how to safely remove this file, or do I remove the entire directory, or ...
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2 votes
1 answer
100 views

Lock One Desktop Icon

On Ubuntu Mate 18.04, how might I lock just one of my desktop icons, so it will not be moved. when I "Organize Desktop by Name.
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0 votes
0 answers
40 views

I'm getting this type of screen after screen reopen in some applications in 20.04

when I lock or suspend and close the screen after reopen screen I'm getting this type of undefined screen in some parts of applications like vs code terminal and Viber. Some screenshots: Laptop: Hp ...
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0 votes
0 answers
45 views

Error while updating softwares 20.04 [duplicate]

I have a problem while trying update Ubuntu 20.04 How I can solve this?
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2 votes
1 answer
1k views

Screen does not lock on suspend

I have recently updated to 20.04 and now when I suspend, either waiting for a long time, closing the lid or manually suspending, the screen does not automatically lock. I've tried setting the 'lock on ...
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0 votes
3 answers
2k views

Could not get lock error while trying to sudo apt upgrade [duplicate]

I'm typing sudo apt upgrade E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable) E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), ...
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  • 1
2 votes
0 answers
141 views

lock screen on resume

I have Ubuntu 18.04 with Plasma installed and I have Lock screen on resume: checked under System Settings -> Desktop Behavior -> Configure Screen Locking but when I put my computer to sleep by K-Menu -...
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0 votes
0 answers
22 views

cant change a login scrreen or always shows this screen on startup

When ever I open it shows this old type. this is scrreen looks like on startup
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1 vote
0 answers
142 views

Ubuntu 18.04 Suspends only after lock

it looks like my installation of Ubuntu is having some issues with the order of operations. Whenever I try to suspend the system using the systemctl suspend command or by closing the lid after ...
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  • 11
0 votes
0 answers
159 views

Something is wrong with the locks on my PC at work

I'm using Ubuntu 16.04. Whenever I try to run most of the programs I get an error related to locks. Even when I open a terminal window I get an error related to locking. For example, when I open a ...
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-1 votes
2 answers
322 views

Is it possible for a Bash script to lock package management so that the script could still use apt (and dpkg) to make changes?

I would like to do something like this: Ask user which packages to remove interactively Remove the requested packages And I want to keep the package system intact while getting the user input. It ...
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  • 4,689
1 vote
2 answers
2k views

Stop monitor from going to sleep in ubuntu 19.10

I'm searching for a new solution to stop monitor going to sleep in ubuntu 19.10 desktop when I lock screen. This solution with gscreen doesn't work anymore: https://askubuntu.com/a/788456/1020896. ...
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  • 321
0 votes
1 answer
219 views

lubuntu 19.10 / myria MY8312SV / discover app / can not obtain lock [duplicate]

I can not install nor upgrade anything 'can not get lock var/lib/dpkg/lock-frontend. it is held by the process 2469 ...' could you suggest what to do to ?
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0 votes
0 answers
439 views

Possible missing firmware for i915 and nouveau when updating kernel with ukuu

I am writing it as an experience as I found most of the answers are too detailed for a newbie and hoping that it will clarify two different aspects. I was installing 5.3.4 kernel with UKUU and was ...
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  • 489
3 votes
2 answers
1k views

How can I run a command when a usb device is (dis-) connected?

I am new to linux, and this is probably a noob question, so, sorry for that. I am using a linux PC in my workshop, and I would like to automate the workshop. That's why I have installed a power strip ...
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1 vote
0 answers
61 views

ubuntu 18.04: Delay screen from going black after manually selecting lock

I was wondering if there was any way of delaying the screen from going black after manually selecting lock from the menu pane. If possible I'd like to set the lock screen itself to go black after 20 ...
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  • 11
0 votes
1 answer
291 views

Screen turns off after lock session

Ubuntu 19.04 GNOME When I lock my computer screen turns off for a shot period. How to disable this?
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2 votes
1 answer
1k views

Could not get lock /var/lib/dpkg/lock-frontend - specific to one single .deb package

I have a custom built package I'm trying to install on my device. It returns this error: nvidia@tegra-ubuntu:~$ sudo dpkg -i MyPackage.deb (Reading database ... 181574 files and directories ...
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  • 178
3 votes
1 answer
515 views

Disable Lock Screen on Resume

I am using Ubuntu 19.04 and am attempting to disable the lock screen from appearing on resume completely. I have disabled the Screen Lock in Settings, installed the "Disable Screen Shield" extension ...
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  • 101
1 vote
1 answer
268 views

Resume/revert changes by interrupted installation

I was installing ubuntu-restricted-extras, however process was stuck on configuration (couldn't click OK in terminal). I just closed terminal. Now I can not run any upgrade case of the lock on this ...
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1 vote
1 answer
639 views

On kubuntu (KDE) all desktop icons can be moved, but not configured. They show a black lock across

No, I haven't locked my widgets. I can move them around freely, I can create them, I can delete them. But I can't resize them and I can't get to their handles. I searched in here, and found two ...
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  • 151
0 votes
0 answers
38 views

Is there any logging of the basic access to the PC with Ubuntu?

Is there any logging of the basic access to the PC with Ubuntu. Also that PC is not auto-locked in some time, only the screen is dimming. For example, someone comes nearby, touches the mouse, and the ...
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