I'm closing this bug due to old age. Please open a new bug if you think
the issue still exists.
** Changed in: linux-firmware (Ubuntu)
Status: Confirmed => Expired
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https://bugs.launchpad.net/bugs/1859223
Title:
Firmware missing for Thinkpad X-series Bluetooth adapters, leads to
headset HSP/HFP profiles not working
Status in linux-firmware package in Ubuntu:
Expired
Status in bluez-firmware package in Debian:
New
Bug description:
Hello there, it's my third or fourth session spending hours trying to
debug why a Bluetooth headset would not work in HSP/HFP mode on my
x230. The failure more is super obscure because at the time of error
the only thing you notice is that no audio comes through in either
direction. Using the a2dp_sink profile works fine.
The root cause for the problem is simply missing firmware, which dmesg
hints at during bootup:
Jan 7 04:11:12.809444 barbudinho kernel: [490029.978724] Bluetooth: hci0:
BCM: chip id 63
Jan 7 04:11:12.809460 barbudinho kernel: [490029.979639] Bluetooth: hci0:
BCM: features 0x07
Jan 7 04:11:12.825406 barbudinho kernel: [490029.995655] Bluetooth: hci0:
BCM20702A
Jan 7 04:11:12.829543 barbudinho kernel: [490029.996649] Bluetooth: hci0:
BCM20702A1 (001.002.014) build 0000
Jan 7 04:11:12.829560 barbudinho kernel: [490029.996671] bluetooth hci0:
Direct firmware load for brcm/BCM20702A1-0a5c-21e6.hcd failed with error -2
Jan 7 04:11:12.829566 barbudinho kernel: [490029.996673] Bluetooth: hci0:
BCM: Patch brcm/BCM20702A1-0a5c-21e6.hcd not found
There are at least two firmware packages missing for different common
X-series adapters; this is referred to from
https://plugable.com/2014/06/23/plugable-usb-bluetooth-adapter-solving-hfphsp-profile-issues-on-linux
and also https://wiki.gentoo.org/wiki/Lenovo_Thinkpad_T430.
The actual firmware locations from those are:
- 0a5c:21e8 https://s3.amazonaws.com/plugable/bin/fw-0a5c_21e8.hcd
- 0a5c:21e6
http://dlcdnet.asus.com/pub/ASUS/misc/BT/Bluetooth_V1201650_WHQL_Win10.zip (see
Bluetooth_V1201650_WHQL_Win10.zip)
There is a lot of firmware collected here which may not be available
on Ubuntu: https://github.com/winterheart/broadcom-bt-
firmware/tree/master/brcm
Related Debian bug: https://bugs.debian.org/cgi-
bin/bugreport.cgi?bug=801084
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