Sounds like this might be a kernel bug, or a hardware problem. I am skeptical of CSR Bluetooth dongles since they seem to be consistently unreliable, at least on Linux.
Please try a newer (or older) kernel version and tell us if that makes any difference:
Sounds like this might be a kernel bug, or a hardware problem. I am skeptical of CSR Bluetooth dongles since they seem to be consistently unreliable, at least on Linux.
Please try a newer (or older) kernel version and tell us if that makes any difference:
https:/ /kernel. ubuntu. com/~kernel- ppa/mainline/ ?C=M;O= D
Or more simply just try live booting Ubuntu 20.04 from USB and tell us if that has the same bug:
http:// cdimage. ubuntu. com/daily- live/current/
Ubuntu 20.04 is due for release at the end of this week.