Here is another post, it's a unresolved issue
https://bbs.archlinux.org/viewtopic.php?id=280693=2
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2056800
Title:
Bluetooth adapter not working ATS2851
Public bug reported:
Hi, I purchased this adapter: https://www.amazon.co.uk/Maxuni-Bluetooth-
Computer-Receiver-Keyboard/dp/B0BQ3964FP
It doesn't currently work on Linux due to a firmware bug.
The fixes are documented on the web:
