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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No audio (dummy output) 20.04 [closed]

Tried all the solutions, resetting alsa, reinstalling pulse, purging something that said it wasn't even installed.. not sure how to fix this. Ideas?
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Update Ubuntu 20.04 to libxml++ 3.0

Ubuntu 20.04 contains libxml++-2.6, which in combination with gcc 11 gives auto_ptr depreciated. Other distributions already deliver libxml++ version 3.0 Please update the Ubuntu repository with a ...
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How do I upgrade from Ubuntu 18.10 to 20.04 step-by-step? [duplicate]

Right now I have Ubuntu 18.10 and want to upgrade to 20.04, the newest version I think. I read a post on this from a few months back, but I'm not really savvy with most of the Ubuntu technical terms ...
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Completely removing apache2 and php7.4-fpm packages

How can I completely remove apache2 and php7.4-fpm package from my ubuntu? Something really weird is happening again and again if I remove apache2, php7.4-fpm is installed and if I uninstall php7.4-...
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1answer
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Ubuntu 20.04 GNOME default layout for UK extended keyboard

I've installed Ubuntu 20.04 LTS with keyboard "English (UK, extended, with Win keys)". I'm confused about where to find certain characters. For example, AltGr+1 gives superscript 1, AltGr+3 ...
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How to activate hardware accelerated video decoding. VA-API in Chromium-based browser

I am currently trying to run Stadia 4K gameplay in Ubuntu 20.04, which demands VP9 hardware accelerated decoding. So far, I've tried both Brave and Chromium with hardware acceleration enabled, and I ...
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1answer
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Error installing MySQL

In Ubuntu 20.04, I try to install mysql server: sudo apt install mysql-server and get the following error: Setting up mysql-server-8.0 (8.0.20-0ubuntu0.20.04.1) ... Renaming removed key_buffer and ...
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20.04. Sound. Sound stopped working on HD 4.40BT bluetooth headset under Headset Head Unit profile

all! I'm running Ubuntu 20.04 on a laptop using bluetooth headset. Internal mic works ok. The other Hi Fi profile works ok, but when i switch the profile to HSP/HFP, there's no sound. It used to work ...
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Why is the Apache2 module not in the mods-available library?

I installed both PHP 5.6 and 7.4 and their apache2 modules: $ sudo apt install php5.6 libapache2-mod-php5.6 $ sudo apt install php7.4 libapache2-mod-php7.4 However, when I try to enable php7.4, I get ...
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Clamav - On-Access scanning for root directory doesn't work

I have problem with on-access scanning with clamav. I am using ubuntu 20.04. First of all I tried to watch home directory. I put eicar.txt to Documents folder and everything works correctly. If I want ...
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Bluetooth headsets can pair and work but cannot connect again

I tried several new headphones (Airpods pro, Sony wh1000xm3, Jbl e25bt) with Ubuntu 18.04 and 20.04. My PC is pretty new so no outdated hardware. They all pair and work, but if I disconnect then I ...
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How to merge two partitions on the same hard drive (one of which is the system file)

I'm very new to linux, coming from lifetime of windows. And also, apparently, stupid. because even though there are many questions similar to mine, I cant seem to find (or rather understand) solution. ...
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Enable bass management

I'm using a Razer Tiamat 7.1 headset (that is true 7.1, with 5 jack connectors). I was previously using it on a windows machine, and as it sounds pretty bad without tweaking, I made a custom equalizer ...
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Deleted EFI partition and now no OS detected while booting

I deleted /dev/sda1 partition of Ubuntu 20.04 by mistake, now when I try to boot, system is not able to detect the OS, is there any way to fix this ? This the image of disks using live usb I have ...
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Ubuntu 18.04 and 800+ devices

I have a storage that consist of server and 3 storages, each has 60 disks and 2 SAS-controllers. There is two SAS-controllers in the server itself, so every disk is available by 4 routes. Like this: ...
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Freezing after installation Ubuntu 20.04

Ubuntu was installed to my competer as second operating system. But after installation, I entered my password then it was freezed. I can move my mouse. But everything on the screen is like part of ...
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My Ubuntu 20.04 keeps freezing after logging in

I have Acer Predator Helios 300 with Intel i5 Gen 8, 16 GB DDR4 RAM and Nvidia Graphics card model GTX 1060 6GB Mobile. None of key work after it freezes, not even ALT+CTL+F# or ALT+F#. Please help me ...
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Configuration of Gaomon M106K (equal to Huion New 1060 Plus) in Ubuntu 20.04

I've recently bought a Gaomon M106K graphics tablet and it runs fine in Ubuntu 20.04 out of the box, without any drivers, in Krita and Blender. But i don't know how to configure the keys on the tablet ...
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The ability to control Spotify specific notifications from the Ubuntu 20.04 desktop's notifications settings are missing

Is there a fix for the notification controls missing from the setting for Spotify? Need to stop just pop-ups, not all the notifications. OS: Ubuntu 20.04 Spotify version: 1.1.26.501.gbe11e53b-15 (...
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Ubuntu 20.04 installer stuck at “running dpkg” [duplicate]

I've got a HP probook 430 g4 with an 64x architecture. I deleted (accidentally) the OS that it had. I tried to install Ubuntu 20.04 Desktop with the “try Ubuntu” and something else way. The HDD was ...
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NVIDIA X Server Settings Losing Pages

I previously installed the Nvidia 440 driver. But when I open the Nvidia X Server Settings program, it only shows a page.The Only Settings PageNvidia Driver Installed Does anyone know the solution? (...
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1answer
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Automatically turn on keyboard backlit on asus tuf505dt with ubuntu 20.04

my asus tuf 505dt laptop has a backlit keyboard, but it doesn't start on ubuntu. I have dual boot with ubuntu 20.04 On windows I can manually turn it on using the Asus software provided. But I was ...
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Internal Mic not working properly

My internal microphone is not working as expected. It is detected in Settings -> Sound, as well as in pavucontrol. However, the captured mic audio seems to be at a very low volume, and only a ...
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Can I install a package from a previous version or it will be problems? [duplicate]

I was trying to install a package called: "qt-at-spi", but this doesn't exist in the version 20.04 LTS (Focal Fossa), so I went to the repositories and this package exists but only on the ...
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Upgrade to Ubuntu 20.04 fails on i386 packages

I recently upgraded from 16.04 to 18.04.4 LTS, and now want to upgrade again to 20.04 LTS using sudo do-release-upgrade -d The process fails with an error message about ppas, but the log files show ...
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Can't Turn Bluetooth On

When I did a fresh install of Ubuntu 20.04 it was working great, but then I accidentally booted to windows 10, and then it stopped working. I was wondering if there was a way to reset the adapter or ...
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Trouble reinstalling Ubuntu 20.04

My question is about reinstalling Ubuntu 20.04. I lost folders and/or dpkg files, then I cannot install programs or update. I have Ubuntu 20.04, and I am trying to reinstall Ubuntu 20.04 because I don'...
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X11 Forwarding between two machines does *not* send launched app to client but launches on server

I have been puzzled by this for some time, and keep wondering if I overlooked something simple. Consider a simple case of two Linux machines. To keep it simple, have both be the same distro and ...
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1answer
21 views

Thumbnails stopped working in GNOME

After a system clean-up, my Nautilus doesn't show thumbnails for new images any more. I reinstalled every package with the words “thumbnail” or “preview” in description, but nothing works. What did ...
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Reinstall Gnome

I tried to update from 16.04 to 20.04, and as is customary, everything went to hell. The GUI was not launching at first, but I got through that by fixing broken packages and reinstalling the linux ...
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1answer
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Error in network definition: bond0: interface 'eno2' is not defined

I get this error when trying to netplan apply. eno2 exists but netplan says it's not defined. network: version: 2 renderer: networkd bonds: bond0: ...
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How to make “Locate Pointer” action aoccure upon click!

I enabled the "Control to locate mouse pointer" setting and am wondering if I can make that action occur upon mouse click! Gnome 3.36.1 Ubuntu 20.04 LTS Mouse Logitech G402
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How to tell the difference between distros when distro hopping

I recently setup distro hopping (n distros sharing the same home), with both distros being Ubuntu 20.04. As they share all ui configuration, it is a little hard to know which side of the computer I ...
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1answer
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stuck on login screen after Kubuntu 19 -> 20 upgrade

I feel a bit sheepish asking such a silly question, but how does one login in the new Kubuntu 20 login screen? Pressing Enter after typing my password does nothing, and I don't see any button to press ...
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Ubuntu 20.04 Color Profiles resets when Increasing/Decreasing Screen Brightness

I've been trying to change colour profile but every time I change the brightness of the screen the colour profile change back to default. I tried using tool provided in the Settings app and then tried ...
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16 views

How can I clone zfs disk including the boot partition

I have ubuntu 20.04 with zfs in one disk (boot + root). I would like to have a larger disk. Is there a way to clone the entire disk with the bpool and rpool to a new larger disk and make it bookable. ...
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80 views

Nvidia-440 Driver is installed on Ubuntu 20.04, but won't run

My installation of the nvidia-440 driver (the recommended one for my system) seems to have worked just fine, but my system refuses to actually run it. I installed it using sudo ubuntu-drivers ...
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Why is Ubuntu 20.04 not registering ethernet on my Raspberry Pi?

When the Raspberry Pi boots up, Ubuntu 20.04 says the following: Net: No ethernet found. starting USB... No working controllers found It continues to boot up, but this means that I can not install a ...
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Brother DCP-T510w prints, but don't scan, Ubuntu 20.04, How can I make xsane recognise it?

I used my printer with ease back in Ubuntu 18.04, but i had to upgrade it. The System works fine and installed all drivers from DCP-T510w Brother's page. The Printer works fine, although sometimes I ...
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28 views

Ubuntu 20.04 dies on Raspberry Pi reboot

Question: Why is Ubuntu 20.04 dying when rebooting on my Pi's? Background: I have 9 Raspberry Pi 3B+ units that I have been using in my networking studies; 2 units had Raspbian OS installed, the ...
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Discord notification causes Firefox audio to cut

When listening to some music in Firefox, using the Spotify web player, or on YouTube, the playback cuts whenever I get a Discord message notification. It drops about 1-1.5sec of audio playback. ...
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Is it possible to use intel graphics for display and GPU for CUDA Ubuntu 20.04?

I am using a laptop with an NVIDIA GPU and intel graphics. There is an option in the PRIMES profile that switches between intel and NVIDIA, but would this still allow me to use the GPU for CUDA? If ...
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How to ask here [migrated]

how to ask here? wonderful system says "This post does not meet our quality standards." how to reach those "standards"?
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Strange boot screen which disappears on reboot

In a KVM host with a fresh Ubuntu 20.04, on the first boot I see the screen below with a message which according to my research so far means there is something wrong with the file system. Free ...
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Ubuntu 20.04 LTS: Terminal freezes and goes white when waking up from suspend

I have recently installed Ubuntu 20.04LTS coming from windows 10, however I have been experiencing some bugs and they are becoming annoying as days goes. One of them being that, waking the laptop from ...
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39 views

Is it possible to get HD quality in Zoom videoconference client on ubuntu?

I tried installing and running the latest Zoom client on 3 different computers running Ubuntu 20.04 with different speeds and specs: all of them display my own image in low, zoomed-in, grainy ...
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1answer
65 views

Ubuntu Wiki BuildYourOwnKernel Questions [closed]

I'm trying to build a new Ubuntu 20.04 Arm64 kernel for the Raspberry Pi 4 Model B using the Ubuntu Wiki BuildYourOwnKernel instructions and there is something that is puzzling me. If I add "+...
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1answer
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Ubuntu focal fossa and Sony A7RII usb tethering

I cannot connect my Sony A7RII camera except for file transfer; lsusb shows not output related to the camera. The latest gphoto2 is installed and gphoto2 --list-cameras| grep -i "A7R II" ...
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Slack suddenly stopped working on Ubuntu 20.04

I have been using Slack (Desktop App) for months now, without any problem. Today, for no apparent reason, the laptop (HP Envy) froze and since then Slack is not working anymore. It seems to try to ...
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1answer
62 views

Mysterious image on first boot lock screen

I'm using Ubuntu 20.04 and noticed a weird behavior. When I select a wallpaper image, it is selected for both lock screen and background wallpaper, but on every first boot I see a mysterious image. I ...

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