Raspberry Pi 3B "Error looking up Bluetooth device"

[MortenNDKK]

HassOS release with the issue:

HassOS 3.7
Home Assistant (Hassio) 0.103.5
Supervisor 193

Supervisor logs:

Journal logs:

Kernel logs:

Description of problem:
I actived bluetooth as a device tracker, but it doesn't work. I get an error in my log stating:

Error looking up Bluetooth device
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/bluetooth/bluez.py", line 31, in discover_devices
lookup_class=lookup_class, device_id=device_id)
_bluetooth.error: (110, 'Operation timed out')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/components/bluetooth_tracker/device_tracker.py", line 140, in perform_bluetooth_update
devices = await hass.async_add_executor_job(discover_devices, device_id)
File "/usr/local/lib/python3.7/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/usr/src/homeassistant/homeassistant/components/bluetooth_tracker/device_tracker.py", line 62, in discover_devices
device_id=device_id,
File "/usr/local/lib/python3.7/site-packages/bluetooth/bluez.py", line 34, in discover_devices
raise BluetoothError ("error communicating with local "
bluetooth.btcommon.BluetoothError: error communicating with local bluetooth adapter

---

I can see on Home Assistant forum that we are at least two with the same problem.

[talondnb]

home-assistant/core#30147

[talondnb]

Issue still apparent on 0.103.6.

[talondnb]

Issue still apparent with HassOS 3.8 and supervisor 195.

[Cooad]

Still doesn't work on HassOS 3.10.
There's a lot of good information in the issue mentioned 3 comments above.
The latest version of HassOS where Raspberry's build-in bluetooth works correctly is 2.12.
Someone tracked it down to a rasberry pi firmaware bug - maybe a firmware update in the next HassOS release would fix it? :)

[r-jordan]

I found a workaround to this problem here:

raspberrypi/firmware#1150 (comment)

[iromeo]

@r-jordan

This work around doesn't work in my case, same issue in ~ day.

ha > login
# hciconfig -a
hci0:	Type: Primary  Bus: UART
	BD Address: B8:27:**:**:**:**  ACL MTU: 1021:8  SCO MTU: 64:1
	UP RUNNING
	RX bytes:21588252 acl:25 sco:188 events:639500 errors:0
	TX bytes:421476 acl:0 sco:0 commands:35854 errors:0
	Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
	Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
	Link policy: RSWITCH SNIFF
	Link mode: SLAVE ACCEPT
Can't read local name on hci0: Connection timed out (110)
# ps aux | grep hciat
root     11581  0.0  0.0   1812     0 ?        S    Mar21   0:00 hciattach /dev/serial1 bcm43xx 38400 noflow - b8:27:eb:c7:34:73
root     12225  0.0  0.0   3180   476 pts/0    S+   08:02   0:00 grep hciat

# uname -a
Linux ha 4.19.106-v7 #1 SMP Fri Mar 6 19:35:05 UTC 2020 armv7l HassOS

[lucagiove]

Hi @pvizeli as described here:
raspberrypi/firmware#1150
and
home-assistant/core#30147
I'd like to submit a Pull Request with a modified version of the btuart file.
How would you suggest to prepare a patch? I'm not used to buildroot but I'm familiar with other build systems like Yocto.
Thanks, Luca

[lucagiove]

I did those PR: #614 #616
I'm currently testing it and seems to be working if you wanna try a test image for rpi3b with my fix below the link to the image:
https://drive.google.com/open?id=1ue0tELFgTZys-_KRs9CSZoq9bhUx9OYF

It's an unofficial version built from development branch.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[pilot1981]

in 0.116.4 there is again the problem...

[lorisbc]

You can revert to 4.13 with ha os update --version 4.13
This issue will be fixed in 4.15 -> #910