Bluetooth adapter not found on Home Assistant

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leviackerman91

New Member
May 17, 2024
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Hi! I'm having some issues with Bluetooth on Home Assistant VM.

The bluetooth is provided by a Mediatek 7922 Wifi card. When i shutdown the VM and start it again, in Home Assistant i get this message Setup failed, will try again: Bluetooth adapter None with address 78:93:C3:08:43:63 not found

If i restart Proxmox, everything works fine
 
Hi!

What is the output of lsusb on boot and after rebooting the VM? Is the bluetooth adapter passedthrough as a USB device? What is logged in the dmesg when the VM is rebooted?
 
How is the Bluetooth adapter passed through then? Are there any syslog entries?
 
dakralex said:
How is the Bluetooth adapter passed through then? Are there any syslog entries?
Click to expand...

to be honest i don't know, i just found out that rebooting the whole node make it works in home assistant, while rebooting the single VM doesn't.

i found this after rebooting the node

Code: 
Apr 08 21:50:34 promox1 kernel: Bluetooth: Core ver 2.22
Apr 08 21:50:34 promox1 kernel: NET: Registered PF_BLUETOOTH protocol family
Apr 08 21:50:34 promox1 kernel: Bluetooth: HCI device and connection manager initialized
Apr 08 21:50:34 promox1 kernel: Bluetooth: HCI socket layer initialized
Apr 08 21:50:34 promox1 kernel: Bluetooth: L2CAP socket layer initialized
Apr 08 21:50:34 promox1 kernel: Bluetooth: SCO socket layer initialized

and this is the log after rebooting Home Assistant VM

Code: 
Apr 08 21:55:06 promox1 qmeventd[6728]: Finished cleanup for 101
Apr 08 21:55:06 promox1 qmeventd[6728]: Restarting VM 101
Apr 08 21:55:06 promox1 pvedaemon[1113]: <root@pam> end task UPID:promox1:000019A9:00006F0D:67F57F10:qmreboot:101:root@pam: OK
Apr 08 21:55:06 promox1 qm[6728]: <root@pam> starting task UPID:promox1:00001A4C:000072F1:67F57F1A:qmstart:101:root@pam:
Apr 08 21:55:06 promox1 qm[6732]: start VM 101: UPID:promox1:00001A4C:000072F1:67F57F1A:qmstart:101:root@pam:
Apr 08 21:55:06 promox1 systemd[1]: Started 101.scope.
Apr 08 21:55:06 promox1 kernel: tap101i0: entered promiscuous mode
Apr 08 21:55:06 promox1 kernel: vmbr0: port 3(tap101i0) entered blocking state
Apr 08 21:55:06 promox1 kernel: vmbr0: port 3(tap101i0) entered disabled state
Apr 08 21:55:06 promox1 kernel: tap101i0: entered allmulticast mode
Apr 08 21:55:06 promox1 kernel: vmbr0: port 3(tap101i0) entered blocking state
Apr 08 21:55:06 promox1 kernel: vmbr0: port 3(tap101i0) entered forwarding state
Apr 08 21:55:06 promox1 qm[6732]: VM 101 started with PID 6745.
 
Last edited:
I read in this thread, that WiFi is provided over the PCIe bus and Bluetooth over the USB controller

this is the output for lspci
Code: 
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 51)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 7
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 05)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 05)
03:00.0 Network controller: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
04:00.0 Non-Volatile memory controller: MAXIO Technology (Hangzhou) Ltd. NVMe SSD Controller MAP1202 (rev 01)
05:00.0 Non-Volatile memory controller: Shenzhen Longsys Electronics Co., Ltd. Lexar NM610 PRO NVME SSD (DRAM-less) (rev 01)
06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Barcelo (rev c1)
06:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Renoir Radeon High Definition Audio Controller
06:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
06:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1
06:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1
06:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor (rev 01)
06:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller

lsusb returs nothing

is this right?
 
any idea guys? This is driving me crazy. I have to manually reboot the node everyday because after the backup (snapshot mode) the Home Assistant VM can't bind the bluetooth (the one from the wifi and a usb dongle). I've tried several things with the help of chatgpt, like blacklisting the bluetooth, use a script to bind before the vm starts, but nothing seems to work
 
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