Firmware file not found for USB bluetooth device


Active Member
Jan 19, 2019

I bought a Bluetooth 5.3 USB device from Realtek, RTL808.

When I plug it on my Proxmox server, I have the following messages :

[  334.951149] usb 1-1: new full-speed USB device number 4 using xhci_hcd
[  335.100138] usb 1-1: New USB device found, idVendor=0bda, idProduct=a729, bcdDevice= 2.00
[  335.100144] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  335.100146] usb 1-1: Product: Bluetooth 5.3 Radio
[  335.100148] usb 1-1: Manufacturer: Realtek
[  335.100149] usb 1-1: SerialNumber: 00E04C239987
[  335.102310] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[  335.103235] Bluetooth: hci0: RTL: rom_version status=0 version=1
[  335.103239] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
[  335.103278] bluetooth hci0: Direct firmware load for rtl_bt/rtl8761bu_fw.bin failed with error -2
[  335.103281] Bluetooth: hci0: RTL: firmware file rtl_bt/rtl8761bu_fw.bin not found

I found some links talking about this error, but even after following those advices and rebooting the server, I still have the issue. I also installed bluetooth and bluez packages, pve-headers-6.2.16-19-pve, latest pve-firmware, but I can't solve this issue.

Can someone help ? Thanks !
Did you install the firmware-realtek package? Note that the package is in the non-free-firmware repository.


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