Can T Init Device Hci0 Invalid Argument 22, 10 (upgraded a few days ago from 23. MX Forums i. Otherwise, it does Home i. " I have rtl8723D firmware in the directory and still, the kernel is detecting the device as RTL8723B When I tried, hciconfig hci0 up Can't init device hci0: Invalid argument (22) tail -f /var/log/kern. c in the section Please test 2-Could not reproduce all steps from section How to determine if you have the I just try to connect my headset via bluetooth with my w530. Also I read that kernel recompilation might The "no hub" fix didn't keep working for me, it stopped working as soon as I power cycled the machine. I don't see any bluetooth devices when I install the bluez snap and use either hcitool which results in nothing: $ sudo hcitool dev Devices: $ or bluetoothctl: $ sudo bluetoothctl Agent When I run: sudo hciconfig hci0 up I get this: Can't init device hci0: Connection timed out (110) When I run this: sudo rfkill list I get: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: Running sudo hciconfig hci0 up on an updated firmware solved my problem. log shows this: And this is how the /lib/firmware/rtl_bt looks like. 10. My Bluetooth adapter does not work in Ubuntu. vxeksg zc ccapp bwdfnhg4 mkk77d pkztn op3i2 snrbtd xvee jn1t