Update: Vom Krabbeltisch gab's jetzt 'nen billigen USB-BT Dongle. Der eigentlich zum Testen gedacht war, aber im Gegensatz zum Asus ließ er sich nicht ohne linux-firmware-realtek zur Mitarbeit bewegen.
Immerhin funktioniert er momentan besser als der Asus, was mir irgendwie keine Ruhe lässt.
Jetzt habe ich 2 Theorien.
- Beim Asus wird, aus welchen Grund auch immer, der falsche Treiber geladen.
- Hardware defekt nach 7 Monaten.
hwinfo Asus
75: USB 00.0: 11500 Bluetooth Device
[Created at usb.124]
Unique ID: zFuK.kWpOjjaOtT2
Parent ID: k4bc.2DFUsyrieMD
SysFS ID: /devices/pci0000:00/0000:00:14.0/usb1/1-8/1-8:1.0
SysFS BusID: 1-8:1.0
Hardware Class: bluetooth
Model: "ASUSTek Bluetooth Controller"
Hotplug: USB
Vendor: usb 0x0b05 "ASUSTek Computer, Inc."
Device: usb 0x1bef "Bluetooth Controller"
Revision: "2.00"
Driver: "btusb"
Driver Modules: "btusb"
Speed: 12 Mbps
Module Alias: "usb:v0B05p1BEFd0200dcE0dsc01dp01icE0isc01ip01in00"
Driver Info #0:
Driver Status: btusb is active
Driver Activation Cmd: "modprobe btusb"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #71 (Hub)
hwinfo ChinaExport
75: USB 00.0: 11500 Bluetooth Device
[Created at usb.124]
Unique ID: zFuK.ARRurxMVQF6
Parent ID: k4bc.2DFUsyrieMD
SysFS ID: /devices/pci0000:00/0000:00:14.0/usb1/1-8/1-8:1.0
SysFS BusID: 1-8:1.0
Hardware Class: bluetooth
Model: "Realtek Bluetooth 5.4 Radio"
Hotplug: USB
Vendor: usb 0x0bda "Realtek Semiconductor Corp."
Device: usb 0xa728 "Bluetooth 5.4 Radio"
Revision: "2.00"
Serial ID: "00E04C239987"
Driver: "btusb"
Driver Modules: "btusb"
Speed: 12 Mbps
Module Alias: "usb:v0BDApA728d0200dcE0dsc01dp01icE0isc01ip01in00"
Driver Info #0:
Driver Status: btusb is active
Driver Activation Cmd: "modprobe btusb"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #71 (Hub)
Asus dmesg | grep -i bluetooth
[ 1.784956] usb 1-8: Product: Bluetooth Controller
[ 11.641549] Bluetooth: Core ver 2.22
[ 11.641563] NET: Registered PF_BLUETOOTH protocol family
[ 11.641564] Bluetooth: HCI device and connection manager initialized
[ 11.641567] Bluetooth: HCI socket layer initialized
[ 11.641568] Bluetooth: L2CAP socket layer initialized
[ 11.641570] Bluetooth: SCO socket layer initialized
[ 11.804005] Bluetooth: hci0: Failed to read codec capabilities (-22)
[ 12.637270] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 12.637272] Bluetooth: BNEP filters: protocol multicast
[ 12.637275] Bluetooth: BNEP socket layer initialized
[ 12.638920] Bluetooth: MGMT ver 1.23
[ 19.907970] Bluetooth: RFCOMM TTY layer initialized
[ 19.907980] Bluetooth: RFCOMM socket layer initialized
[ 19.907982] Bluetooth: RFCOMM ver 1.11
ChinaExport dmesg | grep -i bluetooth
[ 1.794490] usb 1-8: Product: Bluetooth 5.4 Radio
[ 11.767593] Bluetooth: Core ver 2.22
[ 11.767607] NET: Registered PF_BLUETOOTH protocol family
[ 11.767608] Bluetooth: HCI device and connection manager initialized
[ 11.767611] Bluetooth: HCI socket layer initialized
[ 11.767612] Bluetooth: L2CAP socket layer initialized
[ 11.767614] Bluetooth: SCO socket layer initialized
[ 11.789909] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[ 11.792761] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 11.793907] Bluetooth: hci0: RTL: btrtl_initialize: key id 0
[ 11.793910] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
[ 11.794841] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
[ 11.794962] Bluetooth: hci0: RTL: cfg_sz 6, total sz 30210
[ 11.945061] Bluetooth: hci0: RTL: fw version 0xdfc6d922
[ 12.790371] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 12.790375] Bluetooth: BNEP filters: protocol multicast
[ 12.790379] Bluetooth: BNEP socket layer initialized
[ 12.792070] Bluetooth: MGMT ver 1.23
[ 40.187543] Bluetooth: RFCOMM TTY layer initialized
[ 40.187551] Bluetooth: RFCOMM socket layer initialized
[ 40.187554] Bluetooth: RFCOMM ver 1.11