Rtl8761b Bluetooth In Linux is working
If Linux < 5.8 , download “rtl8761bu_config.bin” “rtl8761bu_fw.bin”
https://anduin.linuxfromscratch.org/sources/linux-firmware/rtl_bt/
https://linuxreviews.org/Realtek_RTL8761B
Ubuntu/Debian：
$ sudo apt-get -y install bluetooth bluez bluez-tools rfkill
Fedora：
$ sudo dnf -y install bluez bluez-tools
Arch Linux/Manjaro：
$ sudo pacman -S bluez bluez-utils
Turn on bluetooth：
$ systemctl status bluetooth.service
If Error ：
$ sudo modprobe btusb
$ sudo systemctl restart bluetooth
Search for Bluetooth devices：
$ sudo dmesg | grep -i bluetooth
If there is no erroryou can use $ bluetoothctl OR $gnome-bluetooth Connect a Bluetooth device
