Bluetooth headphones don't have audio output when using microphone

Hello,

When I use High Fidelty Playback (A2DP) on my headset I only get audio output. When I use Handsfree headset unit (HFP) I get my microphone recording but no sound output comes from the headphones even when I set sound output to the headphones.

I have been able to use HFP with my headphones before when I had manjaro on my laptop and even though the audio was not clear, I was able to use both the microphone and headphone speaker.

System:
  Kernel: 5.10.61-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64 
  root=UUID=6f0e6d25-04cf-4fda-aeb4-9ea63414a140 rw quiet apparmor=1 
  security=apparmor udev.log_priority=3 
  Desktop: Xfce 4.16.0 tk: Gtk 3.24.29 info: xfce4-panel, plank 
  wm: xfwm 4.16.1 vt: 7 dm: LightDM 1.30.0 Distro: Manjaro Linux 
  base: Arch Linux 
Machine:
  Type: Desktop System: ASUS product: N/A v: N/A serial: <filter> 
  Mobo: ASUSTeK model: PRIME B560M-A v: Rev 1.xx serial: <filter> 
  UEFI: American Megatrends v: 0820 date: 04/27/2021 
Battery:
  Device-1: hidpp_battery_0 model: Logitech Wireless Solar Keyboard K750 
  serial: <filter> charge: 100% rechargeable: yes status: Full 
  Device-2: hidpp_battery_1 model: Logitech Wireless Gaming Mouse 
  serial: <filter> charge: 55% (should be ignored) rechargeable: yes 
  status: Discharging 
CPU:
  Info: Quad Core model: Intel Core i3-10320 bits: 64 type: MT MCP 
  arch: Comet Lake family: 6 model-id: A5 (165) stepping: 3 microcode: EA 
  cache: L2: 8 MiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 bogomips: 60819 
  Speed: 800 MHz min/max: 800/4600 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 
  4: 800 5: 800 6: 800 7: 800 8: 800 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX unsupported 
  Type: l1tf status: Not affected 
  Type: mds status: Not affected 
  Type: meltdown status: Not affected 
  Type: spec_store_bypass 
  mitigation: Speculative Store Bypass disabled via prctl and seccomp 
  Type: spectre_v1 
  mitigation: usercopy/swapgs barriers and __user pointer sanitization 
  Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB filling 
  Type: srbds status: Not affected 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: NVIDIA GM206 [GeForce GTX 960] vendor: eVga.com. driver: nvidia 
  v: 470.63.01 alternate: nouveau,nvidia_drm bus-ID: 01:00.0 
  chip-ID: 10de:1401 class-ID: 0300 
  Display: x11 server: X.Org 1.20.13 compositor: xfwm4 v: 4.16.1 driver: 
  loaded: nvidia display-ID: :0.0 screens: 1 
  Screen-1: 0 s-res: 3968x1280 s-dpi: 96 s-size: 1050x339mm (41.3x13.3") 
  s-diag: 1103mm (43.4") 
  Monitor-1: DP-0 res: 1024x1280 hz: 60 
  Monitor-2: DP-3 res: 1920x1080 hz: 60 dpi: 93 size: 527x296mm (20.7x11.7") 
  diag: 604mm (23.8") 
  Monitor-3: DP-4 res: 1024x1280 hz: 60 
  OpenGL: renderer: NVIDIA GeForce GTX 960/PCIe/SSE2 v: 4.6.0 NVIDIA 470.63.01 
  direct render: Yes 
Audio:
  Device-1: Intel vendor: ASUSTeK driver: snd_hda_intel v: kernel 
  bus-ID: 00:1f.3 chip-ID: 8086:f0c8 class-ID: 0403 
  Device-2: NVIDIA GM206 High Definition Audio vendor: eVga.com. 
  driver: snd_hda_intel v: kernel bus-ID: 01:00.1 chip-ID: 10de:0fba 
  class-ID: 0403 
  Sound Server-1: ALSA v: k5.10.61-1-MANJARO running: yes 
  Sound Server-2: JACK v: 1.9.19 running: no 
  Sound Server-3: PulseAudio v: 15.0 running: yes 
  Sound Server-4: PipeWire v: 0.3.34 running: no 
Network:
  Device-1: Intel Ethernet I219-V vendor: ASUSTeK driver: e1000e v: kernel 
  port: efa0 bus-ID: 00:1f.6 chip-ID: 8086:15fa class-ID: 0200 
  IF: eno1 state: down mac: <filter> 
  Device-2: Intel Wireless 7265 driver: iwlwifi v: kernel port: 3000 
  bus-ID: 03:00.0 chip-ID: 8086:095a class-ID: 0280 
  IF: wlp3s0 state: up mac: <filter> 
Bluetooth:
  Device-1: Intel Bluetooth wireless interface type: USB driver: btusb v: 0.8 
  bus-ID: 1-8:2 chip-ID: 8087:0a2a class-ID: e001 
  Report: rfkill ID: hci0 rfk-id: 1 state: up address: see --recommends 
Drives:
  Local Storage: total: 931.52 GiB used: 29.06 GiB (3.1%) 
  SMART Message: Required tool smartctl not installed. Check --recommends 
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Western Digital 
  model: WDS500G3X0C-00SJG0 size: 465.76 GiB block-size: physical: 4096 B 
  logical: 4096 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter> 
  rev: 111110WD temp: 56.9 C scheme: GPT 
  ID-2: /dev/sda maj-min: 8:0 vendor: Western Digital 
  model: WDS500G2B0A-00SM50 size: 465.76 GiB block-size: physical: 512 B 
  logical: 512 B speed: 6.0 Gb/s type: SSD serial: <filter> rev: 20WD 
  scheme: GPT 
Partition:
  ID-1: / raw-size: 465.46 GiB size: 457.08 GiB (98.20%) 
  used: 29.04 GiB (6.4%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2 
  ID-2: /boot/efi raw-size: 300 MiB size: 299.3 MiB (99.76%) 
  used: 25.4 MiB (8.5%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 
Swap:
  Alert: No swap data was found. 
Sensors:
  System Temperatures: cpu: 48.0 C mobo: N/A gpu: nvidia temp: 60 C 
  Fan Speeds (RPM): N/A gpu: nvidia fan: 7% 
Info:
  Processes: 247 Uptime: 11h 38m wakeups: 209 Memory: 15.49 GiB 
  used: 3.58 GiB (23.1%) Init: systemd v: 248 tool: systemctl Compilers: 
  gcc: 11.1.0 Packages: pacman: 1205 lib: 338 flatpak: 0 Shell: Bash v: 5.1.8 
  running-in: xfce4-terminal inxi: 3.3.06 

Is there a diff between pacmd dump when you set A2DP and when you set HFP?

:thinking: