Arch Linux

warbaque

Member

Registered: 2017-12-24

Posts: 1

Problems with bluetooth and x230 Thinkpad

I can't get bluetooth to work on my laptop.

Device keeps appearing and disappearing by random.

lsusb when device works

Bus 001 Device 126: ID 0a5c:21e6 Broadcom Corp. BCM20702 Bluetooth 4.0 [ThinkPad]

dmesg when device appears or disappears

DEVICE APPEARS (dmesg when device starts working)

[ +10,899095] usb 1-1.4: new full-speed USB device number 36 using ehci-pci
[  +0,215688] Bluetooth: hci0: BCM: chip id 63
[  +0,000981] Bluetooth: hci0: BCM: features 0x07
[  +0,016894] Bluetooth: hci0: BCM20702A
[  +0,001170] Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000
[  +0,857058] Bluetooth: hci0: BCM20702A1 (001.002.014) build 1669
[  +0,016964] Bluetooth: hci0: Broadcom Bluetooth Device


DEVICE DISAPPEARS (dmesg when device stops working)

[  +0,971707] usb 1-1.4: USB disconnect, device number 38


POSSIBLE ERRORS AFTER DEVICE DISAPPEARS

[  +0,124187] usb 1-1.4: USB disconnect, device number 39
[  +2,071200] Bluetooth: hci0 command 0xfc4c tx timeout
[  +7,892877] Bluetooth: hci0: BCM: Patch command fc4c failed (-110)
[  +0,000042] Bluetooth: hci0 sending frame failed (-19)
[  +2,133294] Bluetooth: hci0 command 0x0c03 tx timeout
[  +7,893374] Bluetooth: hci0: BCM: Reset failed (-110)