RTL8822BE Bluetooth device

drivers bluetooth realtek

Solution 1:

Actually the problem might be that you install doesn't have the firmware for bluetooth, in terminal do 

cd /lib/firmware/rtl_bt
sudo wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/rtl_bt/rtl8822b_config.bin
sudo wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/rtl_bt/rtl8822b_fw.bin

Then shutdown and boot

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