Bluetooth asus BT500 + BT Speakers stutters

Connection lost and only stutters

Feb 02 23:17:44 weingeist-PC kernel: Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
Feb 02 23:17:44 weingeist-PC kernel: Bluetooth: hci0: RTL: rom_version status=0 version=1
Feb 02 23:17:44 weingeist-PC kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
Feb 02 23:17:44 weingeist-PC kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
Feb 02 23:17:44 weingeist-PC kernel: Bluetooth: hci0: RTL: cfg_sz 6, total sz 27814
Feb 02 23:17:44 weingeist-PC kernel: Bluetooth: hci0: RTL: fw version 0x09a98a6b
Feb 02 23:27:55 weingeist-PC wireplumber[1657]: Transport Acquire() failed for transport /org/bluez/hci0/dev_84_17_15_11_3E_27/sep5/fd0 (Input/output error)
Feb 02 23:28:07 weingeist-PC bluetoothd[1311]: /org/bluez/hci0/dev_84_17_15_11_3E_27/sep5/fd1: fd(39) ready
Feb 02 23:28:07 weingeist-PC wireplumber[1657]: set volume 82 failed for transport /org/bluez/hci0/dev_84_17_15_11_3E_27/sep5/fd1 (No such property 'Volume')
Feb 02 23:37:18 weingeist-PC bluetoothd[1311]: /org/bluez/hci0/dev_84_17_15_11_3E_27/sep5/fd4: fd(39) ready
-- Boot 862f76e90bf44720a38870e67a16aeeb --
Feb 02 23:38:58 weingeist-PC kernel: Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
Feb 02 23:38:58 weingeist-PC kernel: Bluetooth: hci0: RTL: rom_version status=0 version=1
Feb 02 23:38:58 weingeist-PC kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
Feb 02 23:38:58 weingeist-PC kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
Feb 02 23:38:58 weingeist-PC kernel: Bluetooth: hci0: RTL: cfg_sz 6, total sz 27814
Feb 02 23:38:58 weingeist-PC kernel: Bluetooth: hci0: RTL: fw version 0x09a98a6b
Feb 02 23:39:45 weingeist-PC bluetoothd[1308]: /org/bluez/hci0/dev_84_17_15_11_3E_27/sep5/fd0: fd(40) ready
Feb 02 23:40:19 weingeist-PC bluetoothd[1308]: /org/bluez/hci0/dev_84_17_15_11_3E_27/sep1/fd1: fd(38) ready
Feb 02 23:40:19 weingeist-PC wireplumber[1655]: set volume 82 failed for transport /org/bluez/hci0/dev_84_17_15_11_3E_27/sep1/fd1 (No such property 'Volume')
Feb 02 23:40:25 weingeist-PC bluetoothd[1308]: /org/bluez/hci0/dev_84_17_15_11_3E_27/sep5/fd2: fd(38) ready
Feb 02 23:40:25 weingeist-PC wireplumber[1655]: set volume 82 failed for transport /org/bluez/hci0/dev_84_17_15_11_3E_27/sep5/fd2 (No such property 'Volume')
Feb 02 23:54:58 weingeist-PC bluetoothd[2306]: /org/bluez/hci0/dev_84_17_15_11_3E_27/sep5/fd2: fd(39) ready

Can you also share:

inxi -Fazy
inxi -Fazy                                                                                                                                ✔  19m 9s  
System:
  Kernel: 5.16.2-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-5.16-x86_64
    root=UUID=9929717f-a7bf-4f29-bc5e-6b7f603d689f rw quiet apparmor=1
    security=apparmor mitigations=off intremap=off udev.log_priority=3
  Desktop: KDE Plasma 5.23.5 tk: Qt 5.15.2 wm: kwin_x11 vt: 1 dm: SDDM
    Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Desktop Mobo: ASUSTeK model: Rampage III Extreme v: Rev 1.xx
    serial: <superuser required> BIOS: American Megatrends v: 1601
    date: 01/03/2012
CPU:
  Info: model: Intel Core i7 X 980 bits: 64 type: MT MCP arch: Nehalem
    family: 6 model-id: 0x2C (44) stepping: 2 microcode: 0x1F
  Topology: cpus: 1x cores: 6 tpc: 2 threads: 12 smt: enabled cache:
    L1: 384 KiB desc: d-6x32 KiB; i-6x32 KiB L2: 1.5 MiB desc: 6x256 KiB
    L3: 12 MiB desc: 1x12 MiB
  Speed (MHz): avg: 3414 high: 3513 min/max: N/A cores: 1: 3513 2: 3513
    3: 3513 4: 3513 5: 3513 6: 3513 7: 3513 8: 2331 9: 3513 10: 3513 11: 3513
    12: 3513 bogomips: 84338
  Flags: ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
  Vulnerabilities:
  Type: itlb_multihit status: KVM: VMX disabled
  Type: l1tf mitigation: PTE Inversion; VMX: vulnerable
  Type: mds status: Vulnerable; SMT vulnerable
  Type: meltdown status: Vulnerable
  Type: spec_store_bypass status: Vulnerable
  Type: spectre_v1 status: Vulnerable: __user pointer sanitization and
    usercopy barriers only; no swapgs barriers
  Type: spectre_v2 status: Vulnerable, IBPB: disabled, STIBP: disabled
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA GA104 [GeForce RTX 3070 Lite Hash Rate] vendor: ASUSTeK
    driver: nvidia v: 495.46 alternate: nouveau,nvidia_drm bus-ID: 03:00.0
    chip-ID: 10de:2488 class-ID: 0300
  Display: x11 server: X.Org 1.21.1.3 compositor: kwin_x11 driver:
    loaded: nvidia display-ID: :0 screens: 1
  Screen-1: 0 s-res: 2560x1440 s-dpi: 109 s-size: 597x336mm (23.5x13.2")
    s-diag: 685mm (27")
  Monitor-1: DP-2 res: 2560x1440 dpi: 109 size: 598x336mm (23.5x13.2")
    diag: 686mm (27")
  Message: Unable to show advanced data. Required tool glxinfo missing.
Audio:
  Device-1: Intel 82801JI HD Audio vendor: ASUSTeK driver: snd_hda_intel
    v: kernel bus-ID: 00:1b.0 chip-ID: 8086:3a3e class-ID: 0403
  Device-2: NVIDIA GA104 High Definition Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel bus-ID: 03:00.1 chip-ID: 10de:228b
    class-ID: 0403
  Sound Server-1: ALSA v: k5.16.2-1-MANJARO running: yes
  Sound Server-2: JACK v: 1.9.20 running: no
  Sound Server-3: PulseAudio v: 15.0 running: no
  Sound Server-4: PipeWire v: 0.3.43 running: yes
Network:
  Device-1: Intel 82567V-2 Gigabit Network vendor: ASUSTeK driver: e1000e
    v: kernel port: cc00 bus-ID: 00:19.0 chip-ID: 8086:10ce class-ID: 0200
  IF: enp0s25 state: up speed: 1000 Mbps duplex: full mac: <filter>
Bluetooth:
  Device-1: ASUSTek ASUS USB-BT500 type: USB driver: btusb v: 0.8
    bus-ID: 5-2:2 chip-ID: 0b05:190e class-ID: e001 serial: <filter>
  Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends
  Device-2: Cambridge Silicon Radio Bluetooth Dongle (HCI mode) type: USB
    driver: N/A bus-ID: 7-1:2 chip-ID: 0a12:0001 class-ID: e000
  Report: This feature requires one of these tools: hciconfig/bt-adapter
Drives:
  Local Storage: total: 23.21 TiB used: 6.18 TiB (26.6%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung model: SSD 950 PRO 512GB
    size: 476.94 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 type: SSD serial: <filter> rev: 2B0QBXX7 temp: 35.9 C scheme: MBR
  ID-2: /dev/sda maj-min: 8:0 vendor: Samsung model: SSD 870 EVO 1TB
    size: 931.51 GiB block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s
    type: SSD serial: <filter> rev: 1B6Q scheme: MBR
  ID-3: /dev/sdb maj-min: 8:16 vendor: Samsung model: SSD 870 EVO 2TB
    size: 1.82 TiB block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s
    type: SSD serial: <filter> rev: 1B6Q scheme: GPT
  ID-4: /dev/sdc maj-min: 8:32 vendor: Seagate model: ST3000NM0033-9ZM178
    size: 2.73 TiB block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s
    type: HDD rpm: 7200 serial: <filter> rev: SN07 scheme: GPT
  ID-5: /dev/sdd maj-min: 8:48 vendor: Seagate model: ST3000NM0033-9ZM178
    size: 2.73 TiB block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s
    type: HDD rpm: 7200 serial: <filter> rev: SN07 scheme: GPT
  ID-6: /dev/sde maj-min: 8:64 vendor: Seagate model: ST16000NM001G-2KK103
    size: 14.55 TiB block-size: physical: 4096 B logical: 512 B speed: 3.0 Gb/s
    type: HDD rpm: 7200 serial: <filter> rev: SN03 scheme: GPT
Partition:
  ID-1: / raw-size: 292.89 GiB size: 287.23 GiB (98.07%) used: 19.2 GiB (6.7%)
    fs: ext4 dev: /dev/nvme0n1p4 maj-min: 259:4
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 28.5 C mobo: 30.0 C gpu: nvidia temp: 41 C
  Fan Speeds (RPM): cpu: 1322 gpu: nvidia fan: 0%
  Power: 12v: 12.19 5v: N/A 3.3v: 3.31 vbat: N/A
Info:
  Processes: 285 Uptime: 36m wakeups: 0 Memory: 11.68 GiB
  used: 2.9 GiB (24.8%) Init: systemd v: 250 tool: systemctl Compilers:
  gcc: 11.1.0 clang: 13.0.0 Packages: pacman: 1310 lib: 373 flatpak: 0
  Shell: Zsh v: 5.8 default: Bash v: 5.1.16 running-in: konsole inxi: 3.3.12

I have found this Solution

I have carried out the 3 steps. Everything is ok.
But

 inxi -Eazy                                                                                                                                       127 ✘ 
Bluetooth:
  Device-1: ASUSTek ASUS USB-BT500 type: USB driver: btusb v: 0.8
    bus-ID: 5-2:2 chip-ID: 0b05:190e class-ID: e001 serial: <filter>
  Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends

The System load btusb and not rtk_btusb

The 3 steps are no longer needed.
The firmware is in the repo’s.
But what is wrong?

 lsmod | grep bluetooth                                                                                                                             1 ✘ 
bluetooth             770048  46 btrtl,btintel,btbcm,bnep,btusb,rtk_btusb,rfcomm
ecdh_generic           16384  2 bluetooth
rfkill                 32768  7 bluetooth
crc16                  16384  2 bluetooth,ext4

inxi -Eazy                                                                                                                                           ✔ 
Bluetooth:
  Device-1: ASUSTek ASUS USB-BT500 type: USB driver: btusb v: 0.8
    bus-ID: 5-1:2 chip-ID: 0b05:190e class-ID: e001 serial: <filter>
  Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends
  Device-2: Cambridge Silicon Radio Bluetooth Dongle (HCI mode) type: USB
    driver: N/A bus-ID: 7-1:2 chip-ID: 0a12:0001 class-ID: e000
  Report: This feature requires one of these tools: hciconfig/bt-adapter

Device-2 is disable with

SUBSYSTEM=="usb", ATTRS{idVendor}=="0a12", ATTRS{idProduct}=="0001", ATTR{authorized}="0"

works great - close it