Latest Ubuntu related questions

Score: 3
scamander avatar
How to install R 4.0 on Ubuntu 18.04 when 'r-base' has no installation candidate
at flag

I was following this instruction for installing R 4.0 in Ubuntu 18.04

$ sudo apt remove r-base
$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
$ sudo add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu bionic-cran40/'
$ sudo apt update
$ sudo apt install r-base

However I get this error message:

Reading package lists... Done
 ...
Score: 1
Migrate a physical Ubuntu 20.04 Desktop to WSLg in Windows 11 by mounting the system SSD
rs flag

I have a existing physical Ubuntu 20.04 Desktop system running on a SSD with ext4 as the file system.

I mounted the SSD into the WSLg Ubuntu in Windows 11.

To keep the same experience as much as possible, I want to use the mounted SSD as the main system disk to replace the default installation of Ubuntu in WSLg.

Is that possible?

I have tried chroot into the SSD in WSLg and successfully ran some CLI softw ...

Score: 5
Devvrath avatar
Earphone mic doesn't work on Ubuntu 21.10
cn flag

My laptop (Lenovo IdeaPad 330) has a fresh install of Ubuntu 21.10. During normal and regular use just after installation, the earphone mic was being recognised and it was functioning well. Then some time later, maybe a few weeks, the earphone mic wasn't being recognised. Pavucontrol says it is unplugged. I don't know if this is because of some update, because whenever I plug in my earphones, it brings  ...

Score: 2
Error: /boot/vmlinuz-4.15.0-142-generic has invalid signature
cn flag

I had Ubuntu Linux installed on my HD and working for several years. I usually boot the computer every day and turn in off in GUI for the night. Today, without me changing anything I suddenly see this upon powering up:

GNU GRUB version 2.04 (I normally don't see this, I get taken straight to login screen)

*Ubuntu

Advanced options for Ubuntu

System setup

and from here if I hit Enter, or any of  ...

Score: 0
ElephantoverThehill avatar
Obexctl does not properly initialise and freezes
in flag

I am encountering an issue when executing the "obexctl" command in Ubuntu terminal.

Please refer to this article: https://ubuntu.com/core/docs/bluez/reference/sending-files

So at times when I am executing "obexctl" it shows

$ obexctl
[NEW] Client /org/bluez/obex
[obex]#

This means that the OBEX client has been properly initialised and I am able to properly use it as expected.

However, other time ...

Score: 1
user313032 avatar
How to display laptop charging speed
cn flag

I have a laptop that charges via USB-C and it can be charged by connecting it to the USB-C port of my desktop. But I would like to know at which wattage.

Is there a command to display at which wattage a laptop is charging? This might also be helpful when comparing different charging bricks and USB cables.

Score: 0
Andrew Mackinnon avatar
How do I install my Canon CanoScan LiDE 20 scanner to Ubuntu 20.04.3 LTS 64-bit?
jp flag

I purchased a Canon CanoScan LiDE 20 scanner in the middle of 2005.

At the time, I had a 32-bit computer with Microsoft Windows XP 32-bit installed on it.

Now, I have a 64-bit computer with Ubuntu 20.04.3 LTS 64-bit installed on it.

I can't scan with my Canon CanoScan LiDE 20 scanner using this installation of Ubuntu 20.04.3 LTS 64-bit.

I would really appreciate it if somebody could please provide me with ...

Score: 1
Automate starting and stopping of programs from terminal
in flag

I have been trying to make it easier and faster to start and stop programs from terminal but didn't get anywhere. Closest thing I found on my searches is this: Starting and stopping of applications but nothing else. I use ubuntu server so no gui at all. In one machine i am running a proxy and I am trying to easy start and stop it without typing long lines, to start it I created a .sh file and I c ...

Score: 0
floatingCatsAndDogs avatar
ubuntu keeps loging me out randomly
in flag

I have been having this problem recently: Ubuntu keeps loging me out randomly even when I am actively moving the mouse and pressing keys.

The screen goes blank and there is this cursor thing at the top left of the screen for a few seconds and I find my self at the login screen.

I have found other questions on this they don't seem to help.

Score: 0
How to resize in Ubuntu 20.04 Filesystem Partition 1?
in flag

New user of Ubuntu and so far loving all the features!

I am booting it using VM. I have a small problem right now that I hope someone can help me with. My RAM or overall memory on partition 1 is running very low to the point where the browser is crashing. I followed the steps to expand my memory by powering off Ubuntu going into the VM interface then>file>Virtual Media Manager, and then mov ...

Score: 0
Way to use the xbox one controller audio jack?
tr flag

I have an xbox one controller connected via USB and i would like to know if there is a way to make the controller's audio jack work with ubuntu.

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