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Remove Slack Symobl from Taskbar Possible?

I have Ubuntu 20.04 on my laptop and when I have Slack running, the symbl is shown in the upper menu, see here: I don't like the symbol when the app is running, how I can remove it? Please note that ...
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6 views

how to block ftp connection with ufw or iptables

I wanted to do a very basic thing - block and then enable a ftp connection between my two virtualbox ubuntus (18.04) and I cannot do that. This is what I understand about it and did: I have sv1 and ...
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6 views

how to simply manipulate DOM from firefox?

There is a website, where I would like that in two specific select fields another option is SELECTED. I can change this very easily using the F12 Firefox Developer console, but how can I automatize ...
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5 views

vlc doesn't work after `sudo snap install vlc`

When installing via snap, vlc doesn't start. If I try from the commandline I get the following error. $ vlc VLC media player 3.0.11 Vetinari (revision 3.0.11-0-gdc0c5ced72) [000055762720bb40] main ...
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5 views

how can I exit from the slideshow mode of libreoffice draw

my system is 64 bit running ubuntu 20.04 I have libreoffice 6.4.5.2 when I start reading a PDF file it begins in slideshow mode. how can I exit from slideshow mode ? So far all my google search result ...
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5 views

How to go back to the default GUI?

I installed KDE-Plasma GUI and I didn't like it. Now I want to go back to the default GUI as if I never installed Plasma.
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6 views

Stop screen proccess

I have a screen on Linux and when I write screen -r I can restore this screen. On this screen, I have a running server. I know, that if I want to detach the screen I have to pres ctrl+a+d, but before ...
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4 views

cryptosetup fails with correct password

On Friday my laptop running Ubuntu 18 did a system update. Since then I have rebooted it and now it does not accept my password. It says crypsetup failed, bad password or options. I am sure the ...
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7 views

Unable to run systemc program

I have tried to run the systemc through vs code on my virtual box, then i realized that i need to install systemc-2.3.3.tar.gz but i am facing several issues. I am new to ubuntu. If you feel this is a ...
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10 views

Transfer from thumb drive to disk

I am trying to transfer files from a thumb drive to my computer's hard drive. I am using a Dell OptiPlex 755 computer, running the Ubuntu 18.04 LTS operating system. I cannot find any options in the ...
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16 views

How to delete software installed with third party repository?

I struggled getting VirtualBox to work in Ubuntu, so I removed it and installed it using a third party repository. I ran these commands: wget -q -O - http://download.virtualbox.org/virtualbox/debian/...
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14 views

Audio stopped working on ubuntu 18.04.4 LTS

A few hours ago I started up ubuntu on my dual-booted computer and noticed the audio didn't work which is weird because it worked earlier today. First I checked if something was muted in alsamixer and ...
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9 views

High CPU Load with Display Link Docks -> alternatives

Is there any docking station that supports 2 external screens which does not use the DisplayLink chipset? On different laptops we have the problem of very high CPU load with DisplayLink drivers and ...
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14 views

Unknown Display in Ubuntu 20.04 Radeon Graphics

I am having the issue of 'Uknown Display' on Ubuntu 20.04. I also have a windows partition on my second SSD. lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-...
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12 views

how to browse c language with man command or can you browse c++?

I want to know how you can browse c library with man command. Although I know that $ man 3 sleep Give me manual for sleep command. But is it any way you you can browse c language like how you learn ...
1
vote
1answer
15 views

Allow Launching from desktop disappeared from menu

After some manipulations with .desktop files, the Allow Launching option disappeared from the right-click menu of a .desktop file. How to solve this problem? Current right-click menu: Expected right-...
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9 views

[Dual system, Ubuntu 20.04]nvidia-gpu: i2c timeout error; ucsi_ccg: i2c_transfer failed -110, ucsi_ccg_init failed

I have been tortured by a tiny bug for a long time. Now I really hope to fix it. They only shows when I boot/turn off my computer, although it doesn't influence anything. when I boot my pc, it ...
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0answers
7 views

Front panel audio jacks not working after upgrade to 20.04

I'm running Kubuntu on an ASUS HM81-PLUS motherboard. It has a RealTek ACL887 audio chip. I have never had a problem with the audio until I upgraded to 20.04 yesterday. Now the front panel jacks (...
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16 views

There's an issue with the repositry in my kai linux [closed]

At first i thought updating source.list would help but then again it wasnt getting updated so after some time i removed the source.list ,to my surprise my kali wasnt even using it. Can anyone help me ...
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18 views

Running script to check network connectivity at sturtup

I've got a VM on hyper-v Runnung Ubuntu 20.04 LTS connected to two nics one external (eth0) and one internal (eth1) as I will be connecting through several networks (home and university mainly) and I ...
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29 views

Ubuntu Not Showing Under BIOS Boot

I'm trying to dualboot Windows 10 and Ubuntu 20.04. Here's what I did: Shrunk over a 100GB using the Disk Management utility in Windows. After booting Ubuntu from a USB, selected "something ...
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6 views

gnome workspace navagation shortcuts for both left and right ctrl/alt?

A few months ago I noticed that I could no longer use <R-ctrl><R-alt>up/down to switch between workspaces, only <L-ctrl><L-alt>up/down seem to work. The gsetting key only says &...
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8 views

Live CD: Running chkrootkit (OR rkhunter)

This is my first post so please bear with me. I am using Ubuntu 16.04. I always ran rkhunter & chkrootkit right from the very operating system being tested. It comes to my attention, according to ...
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10 views

Problems running ldtp in an ubuntu docker container

I'm trying to run ldtp 3.5 inside an ubuntu docker container. My Dockerfile looks like this: FROM ubuntu:18.04 ENV XAUTHORITY ~/.Xauthority RUN apt-get update -y && \ apt-get install -y ...
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11 views

networking issue on ubuntu server 20.04

i have a strange problem with my network. i host Minecraft servers for me and my kids and i recent updated from ubuntu 16.04 to 20.04 most of my stuff went across without a hiccup and last week their ...
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7 views

audio input not working but output works? in ubuntu 20.04

laptop: acer swift3 SF515-52, os: ubuntu 20.04.01 description : my ubuntu os does not sensing the microphone as input device, not taking any sound as input but sensing the microphone as output device ...
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19 views

Minimal BASH like line editing is supported GRUB Error on every boot

Everytime I boot up, the Minimal BASH like line editing is supported GRUB window appears and I have to enter normal to get back to the GRUB menu and get things done like normal as before. I have ...
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9 views

Ubuntu 20.04 terminal and terminator not opening

In order to use python to run Matlab scripts, I have downgraded my Python from 3.8 to 3.7. Here is my configuration for python3 me@me-server:~$ sudo update-alternatives --config python3 There is only ...
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8 views

Screen flickering on certain apps in Ubuntu 20.04.1 LTS

I use Ubuntu 20.04.1 LTS on a dual-monitor setup. These are the relevant components of my PC: CPU: AMD Ryzen 7 3700X 3.6GHz Motherboard: Asus TUF GAMING X570-PLUS Memory: Corsair Vengeance LPX 16GB (2 ...
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0answers
16 views

User unable to login

One of the user unable to login into Ubuntu server. As a administrator I am login into server and getting below error Connot convert group (username) to aid, please contact your administrator to see ...
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0answers
7 views

problems with the touchpad

I have installed ubuntu 20.04 together with windows 10. I have problems with the touchpad, which does not work in any system, when before the installation it worked correctly in windows, now I have to ...
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0answers
15 views

Copying zip folder from my desktop to linux terminal

Am new and i need help. I have a zip folder on my desktop and i want to upload the zip folder to my linux terminal after which i need to unzip the folder and access the docker files for me to create a ...
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12 views

Black screen after first boot of successful 20.04 installation

I have replaced the hdd in my 2010 MacBook pro with a Crucial 500 GB ssd. In the hdd setup it was already running Ubuntu (Ubuntu 20.04.1 LTS x86_64) without any issues. After putting in the ssd, I ...
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9 views

ubuntu 20.04 not connecting to android hotspot

i installed Ubuntu 20.04 and it doesn't detect my android hot spot, but when i turn on my router with the same network name it does detect so i have to have that router to be able to connect to my ...
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0answers
8 views

Lenovo Ideapad 330 Ubuntu 18.04 keyboard not working/ working erratically. External mouse works just fine

A recurring issue. Yesterday evening, after rebooting, the laptop keyboard behaved erratically. The external mouse is working. (I rarely use the laptop mouse). Some keys are working, some do not ...
1
vote
1answer
14 views

/sbin/init splash high CPU usage

I'm running Ubuntu 20.04 and since a week the fan of my laptop spins constantly. There are also major performance dropouts where the system seems to halt for a few seconds. Now I had the time to take ...
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0answers
12 views

Ubuntu 18.04 with GUI for Azure

Does it exist Ubuntu 18.04 with GUI for Azure or only Server edition?
2
votes
1answer
18 views

Equivalent of hdparm -t for home directory?

I want to test the read speed on an Ubuntu Server hard drive like one would do with hdparm -t, but I need to automatically this on multiple machines where I don't know beforehand what dev the main HDD ...
0
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0answers
20 views

Ubuntu will only boot in recovery mode ACPI error

I have a Dell G5 AMD Ryzen 5 4600h laptop that I just put Ubuntu 20.04 on. When I try and do a normal boot, I get these ACPI error messages. I can then boot in recovery mode and everything works fine, ...
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0answers
8 views

Username password authentication doesnt work as expected im mosquitto broker

Authentication with username and password doesnt work as expected in mosquitto broker..I am able to subscribe mosquitto_sub and publish mosquitto_pub to topics even if the username and password is ...
0
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0answers
17 views

Cloned Partition and can't boot from it

a year ago I installed Ubuntu on a small partition of 16GB because I thought I'd not use it that much, well that is not the case and I currently find myself needing a lot more space. So because I did ...
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0answers
10 views

How do I find out which snaps are using which versions of the runtime

I have Gnome 3.26, 3.28 and 3.34 on my machine (Ubuntu 18.04) and want to know if I can get rid of any of them to save disk space. Is there some kind of snap command I can run that will show me?
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0answers
28 views

when i try to use apt-get to download packages or files it shows an error

Error with my source list file. Ive tried all online forums and nothing has worked. any help would be much appreciated. Output of cat /etc/apt/sources.list.d/beaver.list: #Manage apt's list of trusted ...
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0answers
20 views

is it possible now i upgrade outdated 19.10 to 20.04? upgrade with [duplicate]

I did not know that ubuntu has the outdated problem right now I can not do anything with outdated ubuntu 19.10 each time I try something I get the error with Err:21 http://old-releases.ubuntu.com/...
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0answers
13 views

Grub problem : After Updation of window, Not able to open ubuntu18.04

Error: Failed to open \EFI\ubuntux64.efi - Not Found Failed to load image \EFI\ubuntux64.efi - Not Found start_image() Not Found System: hp i7 8th generation Dual Boot After updating window, I ...
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0answers
17 views

Lenovo ThinkPad T470 USB-C issue Ubuntu 20.04

I received a ThinkPad USB-C Dock from my company to connect my monitor and other peripherals. I run Ubuntu 20.04 LTS on my machine and each time my laptop is docked and goes to sleep, after waking up ...
0
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0answers
12 views

a start job is running wait for network to be configured ubuntu server 20.04

I apologise if this has already been mentioned a number of times, but the nformation im looking for hasnt solved my issue i have Ubuntu Server 20.04 running on a vm through Hyper v on a Dell server. ...
0
votes
1answer
21 views

Ubuntu 18.04 - second screen stay black

I know there is multiple questions mentioning the same issue but none of them gave me an answer. I've installed Ubuntu 18.04 on my Asus TUF 765D Laptop. When plugin a secondary screen (that works ...
0
votes
1answer
16 views

Opening email attachments with Libreoffice 7

I've recently changed from Libreoffice 6 to 7 on Ubuntu18 and now email (Evolution) attachments won't open, I get this message; Access to /home/john/.cache/evolution/tmp/evolution-john-18hj2h/(...
0
votes
1answer
18 views

Speakers not detected in Debian [closed]

I'm using Debian SID. Everything was working fine until yesterday. Today, my speakers aren't being detected. This is a screenshot of Pulse Audio Volume Control

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