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I have currently clean installed Ubuntu 22.04 LTS Desktop stable build which was released on April 21/04/2022,on my Asus K55VJ 3rd gen Corei5,GT 635 M with 2GB of VRAM,8GB RAM...Now when i go to the bluetooth menu through settings , I get a error saying No bluetooth found plugin a dongle to use bluetooth. Pls suggest me solution with some images attached so that i can rectify, i am not a computer guy and I am new to ubuntu so answer accordingly thnk u..

See i have in build bluetooth in this device

The service is running but no controller is availaible

In rfkill list it is not showing the bluetooth

This the last image of settings where i cant toggle the bluetooth on or off output of lspci -knn | grep Net -A3; lsusb; dmesg | grep -i blue

what could be the problem ???

Mickey Sam
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1 Answers1

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Check the result for this:

sudo dmesg |grep -i bluetooth

My case was identical to yours, and I was giving this error in the result:

[    3.935429] Bluetooth: Patch file not found ar3k/AthrBT_0x11020000.dfu

And the solution was to follow zxcde's answer to Patch file not found ar3k/AthrBT_0x31010000.dfu:

You can try my solution:

  1. Download linux-firmware_1.201.tar.xz from http://archive.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.201.tar.xz (you can visit https://packages.ubuntu.com/impish/linux-firmware for more details).
  2. Extract linux-firmware_1.201.tar.xz and copy the ar3k folder into /lib/firmware.
  3. Restart your computer.
BeastOfCaerbannog
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Nilson Oliveira
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  • zYes mine is also saying 293998] Bluetooth: Patch file not found ar3k/AthrBT_0x01020200.dfu and i followed ur site but after downloading the said file i cant find the /lib/firmware folder to copy the atk file can u help me with that ?? – Mickey Sam Apr 26 '22 at 03:43
  • Much Much thnx buddy figured out how to copy the req file to the destination folder and it worked many many thnx the solutions... – Mickey Sam Apr 26 '22 at 04:48
  • I'm glad it worked! If anyone else has the same doubt as our friend had, it is necessary to have root privileges to modify the system folders, so it can be done via terminal or opening nautilus via sudo. – Nilson Oliveira Apr 26 '22 at 11:51
  • sudo dmesg |grep -i bluetooth doesnt give any output for me... I'm pretty sure that my laptop has bluetooth and I never needed any "dongle" – Lutosław Aug 31 '22 at 09:35