2

I have a Lenovo B5400 with Windows 8 and Ubuntu 14.04 in dual boot. My bluetooth works well under Win but with Ubuntu it is not able to detect any device. hcitool scan does a scan but doesn't detect anything

hciconfig --all:

BD Address: A4:DB:30:9E:43:BB ACL MTU: 820:8 SCO MTU: 255:16 UP RUNNING PSCAN ISCAN RX bytes:901 acl:0 sco:0 events:42 errors:0 TX bytes:994 acl:0 sco:0 commands:42 errors:0 Features: 0xff 0xff 0xff 0xfe 0xdb 0xff 0x7b 0x87 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH HOLD SNIFF PARK Link mode: SLAVE ACCEPT Name: 'ubuntu-0' Class: 0x700100 Service Classes: Object Transfer, Audio, Telephony Device Class: Computer, Uncategorized HCI Version: 4.0 (0x6) Revision: 0xb LMP Version: 4.0 (0x6) Subversion: 0x8723 Manufacturer: Realtek Semiconductor Corporation (93)

rfkill list 1: tpacpi_bluetooth_sw: Bluetooth Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no

Do you see any anomalies?

1

1 Answer 1

-1

Workaround: You need to have Windows installed. Start Windows, then switch OFF bluetooth, shut down. Start Ubuntu, switch on bluetooth. Now you should be able to see BT devices.

2
  • This works only in case the firmware is not installed in Ubuntu. It is easier to install firmware.
    – Pilot6
    Jun 26, 2016 at 15:16
  • Preposterous: suggest to install windows? on this forum? Jun 10, 2017 at 0:27

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .