OS Upgrade breaks Intel bluetooth on proxmox hosted install

[titchy]

Describe the issue you are experiencing

After updating to the latest HAOS bluetooth is no longer available.
Here is a screenshot from the console showing bluetooth errors that were not there previously.

What operating system image do you use?

ova (for Virtual Machines)

What version of Home Assistant Operating System is installed?

13.1

Did the problem occur after upgrading the Operating System?

Yes

Hardware details

Proxmox KVM VM. I have passed the bluetooth device through to the VM and it was working prior to the upgrade.

Steps to reproduce the issue

1. Upgrade OS
2. Bluetooth stops

...

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

No

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

No

System information

System Information

version	core-2024.8.2
installation_type	Home Assistant OS
dev	false
hassio	true
docker	true
user	root
virtualenv	false
python_version	3.12.4
os_name	Linux
os_version	6.6.46-haos
arch	x86_64
timezone	Europe/London
config_dir	/config

Home Assistant Cloud

logged_in	true
subscription_expiration	31 August 2024 at 00:00
relayer_connected	true
relayer_region	eu-central-1
remote_enabled	true
remote_connected	true
alexa_enabled	true
google_enabled	true
remote_server	eu-central-1-6.ui.nabu.casa
certificate_status	ready
instance_id	ea5ca937aa654fc895d1b480d8cdabe3
can_reach_cert_server	ok
can_reach_cloud_auth	ok
can_reach_cloud	ok

Home Assistant Supervisor

host_os	Home Assistant OS 13.1
update_channel	stable
supervisor_version	supervisor-2024.08.0
agent_version	1.6.0
docker_version	26.1.4
disk_total	30.8 GB
disk_used	9.7 GB
healthy	true
supported	true
host_connectivity	true
supervisor_connectivity	true
ntp_synchronized	true
virtualization	kvm
board	ova
supervisor_api	ok
version_api	ok
installed_addons	File editor (5.8.0), Z-Wave JS (0.6.2), Mosquitto broker (6.4.1), ESPHome (2024.8.0), Piper (1.5.2), Whisper (2.1.2), JupyterLab (0.15.2)

Dashboards

dashboards	5
resources	0
views	11
mode	storage

Recorder

oldest_recorder_run	19 August 2024 at 07:45
current_recorder_run	22 August 2024 at 15:36
estimated_db_size	357.93 MiB
database_engine	sqlite
database_version	3.45.3

Additional information

No response

[sairon]

It seems the device disappears from the bus and it's possibly not the result of the OS upgrade itself. First of all try rebooting the VM couple of times and if it doesn't help, cold boot the Proxmox host too. If it keeps being broken, check if reverting to the previous version (using ha os boot-slot other) makes it reliably stable again - then we'll get a confirmation it's a guest OS/Linux regression.

[titchy]

Rebooting the VM had no effect.
Removing the USB pass through and re-adding it to the VM has fixed the issue.
I have had this running under the previous OS version with a fair few reboots and no issues. It was only after the OS update that rebooting would not result in the BT device being available. Hence my linking it to the OS upgrade.
I will keep an eye on it and see if I can work out what happened. But I think for now this should be closed as not OS related.