Questions tagged [20.04]

Ubuntu 20.04, also known as Focal Fossa, is an LTS version released on 23rd April 2020. Will go End Of Life (EOL) April 2025. Only use this tag if your question is version-specific. Don't use this to file bugs!

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Do the old kernel versions get deleted from the system without letting me know?

When I boot into 5.8.0-49-generic or 5.8.0-50-generic, my system literally breaks (my WiFi, touch pad, Ethernet, speakers, screen brightness adjustment, and Bluetooth don't work). So, since then, I ...
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20.04.2. Running basic commands like copy and executing shell scripts using runcmd of cloud-init file

#cloud-config autoinstall: apt: geoip: true preserve_sources_list: false primary: - arches: [amd64, i386] uri: http://us.archive.ubuntu.com/ubuntu - arches: [default] ...
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Why did my icons turn gray and my system hangs?

After my last Ubuntu update (yesterday), my system has been working atypically; first, at some point the entire system icons turned gray and I was unable to do anything to get them back to normal, ...
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Ubuntu 20.04 not shutting down/restarting, just freezing on the desktop screen

i upgraded my system to ubuntu 20.04 and this problem: Ubuntu 20.04 not shutting down/restarting(both with the desktop env. and the terminal), just freezing on the desktop screen. I do not have much ...
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VLC Media Player not respecting GNOME theme settings [duplicate]

Edit: Solved it following these instructions. I used to run Ubuntu MATE with the Dracula GTK theme, basically turned my entire OS into a dark theme environment. VLC Media Player respected the theme ...
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HDMI input switching causeing popping / crackling with USB Audio - Pulseaudio problem?

I seem to be having issues with HDMI effectively sending noise back to my PC when disconnecting or changing inputs on my HDMI switch. I don't use HDMI for audio and have disabled any HDMI audio in ...
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1answer
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WIFI only connects at 6mbps max

I'm a complete novice on Ubuntu, but wanted to ditch Windows. I set up Ubuntu 20.04 LTS and everything seemed great. I selected to keep my Windows installation on a separate partition, as offered by ...
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2answers
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Can't apt update

I'm losing my mind over this. For two days, I can't seem to be able to have apt working. I have a VM with Ubuntu 20.04.2 on it. All I want to do is to have to have apt with the official Ubuntu repo. ...
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Bluetooth not discovering any near-by devices

Bluetooth doesnt discover any nearby devices This is a link btw. Can anyone answer this? I need some help.Ubuntu also gives an error after selecting setup new device in blueman.
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1answer
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Battery draining too fast

I have started using ubuntu and battery draining is too fast as compared to windows. I heard about TLP but it doesn't seem to help. I am running Ubuntu 20.04 as Asus Vivibook F571 with NVIDIA GTX 1650....
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Changes in AWK on Ubuntu 20.04 LTS?

I am working with some huge astronomical databases and I just realized that awk is not working as expected. I'm downloading and cutting some .gz files, but awk restrictions are weird, let me share a ...
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Strange graphics issues such as flickering application windows and inconsistent display lagging [duplicate]

My computer was acting really strange; the windows were flickering and parts of windows of different applications were partly appearing at random places. Also when I was typing, my computer seemed to ...
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Ufw blocks incoming and outgoing connections

To update firewall rules, reloading ufw ufw reload blocking incoming and outgoing connections for around 2 seconds, untill it completes reload process. I have set already the default policy deny for ...
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Touchpad stopped working after suspend/sleep - Thinkpad T480 on Ubuntu 20.04 (fresh install)

Installed Ubuntu 20.04 early this week but i'm still struggling to make my touchpad working after waking up from suspend. I can confirmed that, touchpad will work again after it's completely shutdown (...
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Not able to use workspaces in ubuntu 20.04. Toogle workspace gnome extention is showing error can anyone help me?

My workspaces are not working, toogle work space gnome extension is also showing error please refer the screen shot attached
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Hide Gnome Panel Through Terminal [duplicate]

I would love to hide the top bar through the terminal, but don't currently know how. Can somebody help me please?
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Horizontal Scrolling Gnome App Grid

I am working on a project, and would like to make the app grid scrolling horizontal. I'm on GNOME 3.36, and have no idea on how to go about doing this. Can someone help me?
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Install packages with dependencies

I have Ubuntu 20.04.2. I can't seem to install packages that require dependencies. There are many packages I have to install with puppet, this is what of them: ~# apt install aptitude Reading package ...
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Prevent local admin from installing any blacklisted package on Ubuntu (Desktop)

At our company there is a need for Ubuntu clients. However there are some issues regarding security. In our case, most Ubuntu users are local admin (listed in /etc/sudoers) but we would like to ...
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Ubuntu 20.04 on Vmware freezes when connected to internet

I have a long existing problem. I'm running a VMware ESX server (6.5) with multiple Ubuntu servers on it. Two of the servers host a website (one public website, other web base mail client). Both ...
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Error found when loading /etc/profile at start of the laptop

code error Error found when loading /etc/profile: /etc/profile: line 28: Directory: No such file or directory As a result the session will not be configured correctly. You should fix the problem as ...
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Music sync from Ubuntu 20.04 to Iphone (RhythmBox won't Recognize Iphone)

New linux user using Ubuntu 20.04 (from windows 10). Trying to sync to and from my iphone and after doing some research and trying several options I have installed the required repositories (...
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Touchpad not working in Lenovo Yoga C640

I am writing from my smartphone since my touchpad is not working, so I won't be able to provide super-detailed information on my issue, but I can easily open up the terminal and write codes and report ...
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1answer
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How can I keep Firefox and Thunderbird automatically being updated to the newest version?

I received notice from my IT department to update Firefox and Thunderbird due to security issues. I thought it would be as easy as going clicking something like "Search for updates" in the ...
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1answer
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Change keyboard layout for login screen

I have changed my keyboard layout in my MATE session. However, when I log out (or reboot) amd try to log in again, the login screen still has the previous keyboard layout. How do I change the keyboard ...
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1answer
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Ubuntu 20.04 screen flickering after power loss

I had Ubuntu 20.04.02 LTS installed on my work machine for months and it worked without any problems. Yesterday the power suddenly went out in the office. After it came back and rebooting the machine, ...
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1answer
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Why I can only see a few folders in Windows disk?

I have a computer with dual boot Windows 10 and Lubuntu 20.04. When I try to access to my windows files I can only see a few, the ones that where already there when I installed Lubuntu. What can I do ...
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1answer
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linux-firmware upgrade failure due to full /boot? [duplicate]

During sudo apt upgrade I get the following error. Also on sudo apt autoremove --purge. Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 ...
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Bluetooth not discovering devices in Ubuntu 20.04.2 LTS

I have dual-boot Windows 10 Pro and Ubuntu 20.04.2 LTS recently. Everything is perfectly working, but my Bluetooth is not able to discover devices (for e.g. headphone, mobile, etc.) I can see the ...
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1answer
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Disable ALL Mate Animations in Ubuntu Mate 20.04

I am totally blind and using Ubuntu Mate 20.04. How can I disable ALL visual animations or effects for maximum performance? I have read the following command, but not sure if it works on Mate without ...
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create a sym link from a folder content to another directory

I have a Ubuntu server running in a virtualized environment for my web development activities. The host OS is sharing with Ubuntu a folder with this path: /media/psf/Sites and this folder Sites ...
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1answer
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Display Graphics Drivers for Ubuntu 20.04

I am using Ubuntu 20.04 & Windows 10 as Dual Boot, I wanted to know that the Display Graphics Drivers in Windows are different, and in Ubuntu it is different, but the System remains the same. I am ...
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1answer
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A good icon for kcharselect [closed]

In the K menu, kcharselect doesn't have an icon. Can anyone suggest a good one (at the appropriate size, of course)?
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Remove eoan/19.10 repository on to a focal/20.04 System

It's just that i said in the title. I have an error, because i tried to install wine, and then, this happens: Hit:1 https://brave-browser-apt-release.s3.brave.com stable InRelease Hit:2 ...
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How to determine the c preprocessor flag for the CPPFLAGS?

I received a sets of Fortran code from my collaborator. In the makefile, there is a line as follows. CPPFLAGS = $(DEF_FLAGS) -DINTEL Because when I used the make command in my terminal to compile the ...
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1answer
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Downgrade Ubuntu 20.04 kernel from 5.4 to 3.2

Hi i need to downgrade Ubuntu kernel version to 3.2 because kernel 5.4 doesn't see my wifi driver package. I tried this command to see kernel images: uname -r But it only shows kernel versions that ...
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Visual Glitches on Ubuntu 20.04

Since a couple of days ago I am experiencing huge visual glitches on my screen (only in some apps). The issue gets worse while in high CPU usage. I've tried to update the video driver, but it didn't ...
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Mouse Speed far too slow on new Ubuntu 20.04.2LTS install

I've just installed 20.04.2 LTS onto a new PC, but even on the highest setting the mouse speed is far too slow. For reference I'm dual booting and had no problems with the mouse speed in Windows 10 so ...
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Can't install wine on ubuntu 20.04

I recently installed ubuntu 20.04.2 LTS and I want to install wine. I did sudo dpkg --add-architecture i386, then sudo apt update. When I ran sudo apt install wine, it gave me this: Reading package ...
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Samba crashes during multiple file transfer; need to restart samba to resume transfer. Win10 - Ubuntu 20.04.2 - Samba 4.11.6

Fresh install of Ubuntu 20.04.2 LTS + Samba 4.11.6 on an old HP PROLIANT MICROSERVER G1610T GEN8 which had run flawlessly for 6 years on Ubuntu 15.xx. This w.e. I tried to upgrade to Ubuntu 20.xx but ...
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Issues with Netplan - Static IP

With the release of Ubuntu Server 20.04 I've had some weird issues concerning Netplan. I'm a student so I use Ubuntu Server as a virtual machine and I have to move a lot (which means, changing IPs all ...
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Parts of display glitching, Ubuntu 20.04 [duplicate]

I'm using an Ubuntu 20.04.2 LTS Asus x550vb laptop with Intel HD Graphics 4000 and a NVIDIA GeForce 740M. Parts of the screen are randomly glitching. Areas from one part of the screen move to another, ...
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1answer
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boot stops at PCIe Bus error severity=Corrected, type=Physical Layer, (Receiver ID)

I was trying to update libpango because another program needed an updated one, for that I removed older one after which my pc froze and this issue started occuring. I am using ubuntu 20.04, I have ...
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2answers
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Isolation of linux distro (ubuntu 18.04 and 20.04) in wsl

In Windows 10 I have installed 2 type of linux distro ubuntu 18.04 and ubuntu 20.04 using WSL. I want to configure 20.04 for ssh port 22 and 18.04 for ssh port 2222 . Will doing these changes affect ...
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1answer
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How to get memory type and manufacturer on AMD GPUs?

I’m looking to find the memory type and most important the manufacturer on my AMD Vega 56 GPU. In windows, there are lots of GUI utilities that shows this, like hwinfo or gpu-z. I’m looking for ...
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VDI - Failed to Start System Security Services Daemon

I am trying to up a VDI imagem from osboxes (Ubuntu 20.10 or 20.04) with oracle virtualbox (v. 6.1.18). The problem occurs when the Ubuntu is loading. I posted a image pointing the error. I saw some ...
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1answer
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Ubuntu 20.04 shift right not functioning

When I installed 20.04, by accident I changed the function of the right shift key when asked. Now it isn't working as a shift key any more. How can I recover this error? Thanks Hubert.
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How can I know which service is shifting my background down and making my background blck?

When I run Ubuntu 20.04 first I see the background correctly, then after some services starts up the background turns to be black. I tried to list the startup services using: sudo service --status-all ...
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1answer
50 views

Showing “Press 'Ctrl'+'C'” to cancel filesystem checks in progress. Someone know how to solve this?

my computer is not starting and remain stacked when I am switching it on, someone knows how I can solve this without losing all my file. I have 1 month of work there I can't lose it. I attach the ...
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How to configure AppArmor for Snaps?

I've been using Snaps such as telegram-desktop and caprine for some time. caprine worked for a few days, but then AppArmor started to show denials in dmesg. caprine didn't even start, just crashed ...

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