Latest Ubuntu related questions

Score: 1
Computer User avatar
Desktop shortcut to logout from KDE Plasma session
ng flag

I type this command

qdbus org.kde.ksmserver /KSMServer logout 0 3 3

to logout from my "user" user (it is sudo user with admin rights) in terminal to logout. Can I create a desktop shortcut so that "user" logs out with single click.

For some reason, I have to disable menu. (it is a production server)

So, I can only use terminal command and desktop shortcut.

Score: 2
William Satterthwaite avatar
Mounting drives and Udev - Udev does not mount drives but executes other aspects of the script
za flag

I want to hot plug an external hard drive, have it mount and automatically run the Unison File Synchronizer.

I have made a udev rule called /etc/udev/rules.d/100-sync.rules

ACTION=="add", SUBSYSTEMS=="usb", ENV{DEVTYPE}=="usb_device", ATTRS{idVendor}=="wxyz", ATTRS{idProduct}=="wxyz", RUN+="/home/william/sync.sh"

It triggers this script:

#!/bin/bash
mkdir /media/william/Backup
mount -U <my_dri ...
Score: 0
Is there an issue with setting nf_conntrack_tcp_be_liberal to 1
ht flag

What Security issues or other problems might I have if I set /proc/sys/net/netfilter/nf_conntrack_tcp_be_liberal to 1 instead of 0

My main issue is when I reset UFW my current connection gets dropped. Many peopled have suggested the following

echo 1 | sudo tee /proc/sys/net/netfilter/nf_conntrack_tcp_be_liberal

Which does seem to work, but I don't know what this change will do. Will it in affect cause mo ...

Score: -3
Update the certificates on Ubuntu 16.04 TLS
ca flag

I have an impression that ca-certificates on Ubuntu 16.04 LTS is outdated.

Today I tried to do:

sudo apt update
sudo apt-get install apt-transport-https ca-certificates -y

but none was updated:

Reading package lists... Done
Building dependency tree
Reading state information... Done
apt-transport-https is already the newest version (1.2.35).
ca-certificates is already the newest version (20210119~16. ...
Score: 1
Can i update my windows OS using windows update assistant on a dual booted device?
jp flag

I have a dual-booted laptop with windows10 and ubuntu. they are separate partitions on a single Hard drive my current windows version is windows 10 1909 and I have an update to windows10 21h2 on windows update assistant. if I download and install that update does it affect my laptop or my grub boot menu how do I update windows?

Score: 0
LibreOffice 7.2.2.2 no help files, no F1, no web links
za flag

System: LibreOffice7.2.2.2, Ubuntu21.10

Problem: No LO help function whatsoever: no F1, no local help files, no links to online help. In LO menus for tools/option, no paths to help files are displayed.

Does anybody know how to install local help files and configure LO to invoke help via the F1 key?

Score: 0
core avatar
How to check what speed a USB device is trained to?
in flag

What command or where in Ubuntu can you check the speed that USB devices are trained? Not the capability of the USB device but the actual trained speed of the current link.

For example we I plug in a USB3.1 Gen2 (10Gbps) hub to my desktop but the signal integrity is bad (to much insertion loss from a long cable) the hub trains at USB3.1 Gen (5Gbps) instead of Gen2

Score: 0
Temp avatar
Desktop is not opening, after i restarted it. Its memory was about to be full
us flag

Previously my system was working fine, after I restarted it is not open showing the file on the whole screen I have attached. Its memory was about to be full before I can empty it, it is not opening now. I am not able to open the terminal also.

Score: 5
hf02 avatar
How can I change the volume of an app, even if it's not playing anything?
de flag

The volume mixer in Ubuntu only shows apps that are playing audio. How can I change the volume of an app when it isn't?

For an example, when using Firefox, some websites will play audio. I can't prevent this beforehand, so I will either have to mute my entire system or scramble to turn Firefox down in settings.

Score: 0
223specialist avatar
Every time I try to update I get this.. And cant install software
ec flag
sudo apt-get update
Get:1 http://dl.google.com/linux/chrome/deb stable InRelease [1,811 B]
Err:2 http://us.old-releases.ubuntu.com/ubuntu focal InRelease                 
  Could not resolve 'us.old-releases.ubuntu.com'
Ign:3 http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu focal InRelease
Err:4 http://us.old-releases.ubuntu.com/ubuntu focal-updates InRelease         
  Could not resolve  ...
Score: 1
What is the cleanest way to intrduce a scanner into System Settings?
us flag

I have a Brother DCP7065DN printer with a built-in scanner. I have the scanner working well,so the software isn't a problem. But how would I add the scanner to the Input Devices section of System Settings? Perhaps this is just a matter of aesthetics. The list of input devices includes keyboards, mice, game controllers, graphic tablets, and touchpads. It would seem that scanners should be on the list  ...

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