Bluetooth stopped working

[netizeni]

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Describe the issue you are experiencing

HAOS is installed as VM in Proxmox. Bluetooth worked fine until a recent update. Intel BE200 bluetooth is passed over USB passthrough. Now it's showing:

while cli is showing these errors constantly:

What operating system image do you use?

ova (for Virtual Machines)

What version of Home Assistant Operating System is installed?

15.2

Did the problem occur after upgrading the Operating System?

Yes

Hardware details

Mini PC Firebat T8 Plus with Intel N100 CPU and Intel BE200 WiFi/Bluetooth card.

Steps to reproduce the issue

1. Update to the latest version

...

Anything in the Supervisor logs that might be useful for us?

Once I search for "bluetooth" or "intel", I don't see anything in supervsior logs

Anything in the Host logs that might be useful for us?

2025-05-11 16:56:14.581 homeassistant systemd[1]: Reached target Bluetooth Support.
2025-05-11 16:56:16.630 homeassistant kernel: Bluetooth: hci0: command 0xfc05 tx timeout
2025-05-11 16:56:16.631 homeassistant kernel: Bluetooth: hci0: Reading Intel version command failed (-110)
2025-05-11 16:57:46.042 homeassistant kernel: Bluetooth: hci0: command tx timeout
2025-05-11 16:57:46.042 homeassistant kernel: Bluetooth: hci0: Reading Intel version command failed (-110)
2025-05-11 16:57:51.057 homeassistant systemd[1]: Stopped target Bluetooth Support.
2025-05-11 16:57:51.405 homeassistant kernel: usb 2-1: reset full-speed USB device number 2 using xhci_hcd
2025-05-11 16:57:51.543 homeassistant systemd[1]: Reached target Bluetooth Support.
2025-05-11 16:57:53.595 homeassistant kernel: Bluetooth: hci0: command 0xfc05 tx timeout
2025-05-11 16:57:53.595 homeassistant kernel: Bluetooth: hci0: Reading Intel version command failed (-110)

System information

System Information

version	core-2025.5.1
installation_type	Home Assistant OS
dev	false
hassio	true
docker	true
user	root
virtualenv	false
python_version	3.13.3
os_name	Linux
os_version	6.12.23-haos
arch	x86_64
config_dir	/config

Home Assistant Supervisor

host_os	Home Assistant OS 15.2
update_channel	stable
supervisor_version	supervisor-2025.04.1
agent_version	1.7.2
docker_version	28.0.4
disk_total	30.8 GB
disk_used	6.3 GB
healthy	true
supported	true
host_connectivity	true
supervisor_connectivity	true
ntp_synchronized	true
virtualization	kvm
board	ova
supervisor_api	ok
version_api	ok

Additional information

No response

[TroLoos]

I observed the same on 2 of my installations - both on Raspberry Pi 4. I used native raspberry bluetooth built in Rpi4.

It stopped working right after latest update.

[sairon]

Isn't the Bluetooth used by the Proxmox host as well? If you passthrough the Bluetooth adapter, you must blacklist the bluetooth modules, the steps are described for example here: https://github.com/home-assistant/operating-system/issues/3985#issuecomment-2766092093

Also, cold boot sometimes helps as well.

[netizeni]

It started working after a couple HA updates over time, so will close this. I changed nothing, except updating when there was an update available. Tried pass-through again and it did with no issues.