Since I've upgraded tot Ubuntu 18.04 (and afterwards to 18.10) I'm having problems with Bluetooth connection. For instance, the music with my Bluetooth speaker lags seriously. Upon investigating
dmesgI'm encountering lots of these errors:
Bluetooth: hci0: last event is not cmd complete (0x0f)
I tried to update
bluez(5.48 -> 5.50) through the official PPA, but this did not work out.
lsusb | grep Blue
Bus 006 Device 003: ID 0930:0508 Toshiba Corp. Integrated Bluetooth HCI
Strangely, I have 2 Bluetooth devices list when executing
0: Toshiba Bluetooth: Bluetooth Soft blocked: no Hard blocked: no 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no
dmesg | egrep -i 'blue|firm' might indicate some problems with the firmware:
[ 0.069143] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge [ 18.813225] toshiba_bluetooth: Toshiba ACPI Bluetooth device driver [ 19.651213] iwl4965 0000:01:00.0: loaded firmware version 188.8.131.52 [ 55.834864] iwl4965 0000:01:00.0: Enabling power save might cause firmware crashes [ 1204.278716] Bluetooth: Core ver 2.22 [ 1204.278758] Bluetooth: HCI device and connection manager initialized [ 1204.278764] Bluetooth: HCI socket layer initialized [ 1204.278771] Bluetooth: L2CAP socket layer initialized [ 1204.278783] Bluetooth: SCO socket layer initialized [ 1204.664153] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 1204.664155] Bluetooth: BNEP filters: protocol multicast [ 1204.664162] Bluetooth: BNEP socket layer initialized [ 1204.769152] Bluetooth: RFCOMM TTY layer initialized [ 1204.769161] Bluetooth: RFCOMM socket layer initialized [ 1204.769172] Bluetooth: RFCOMM ver 1.11
My kernel version:
How could I solve this please?