Windows 10: Computer audio output and input not working, problem with drivers?

Hi!I am having a lot of problems with my computer audio input and output. I believe the problem started a few weeks ago when I uninstalled the Realtek audio console. I am using Windows 11 on an Acer Swift SF314-43. When I start my computer no audio at all comes from the built in speakers. Neither do heaphones work, bluetooth or wired, even though they work with other devices. For a while the computer could not even detect that headphones had been connected, but this functionality seems to now have returned, though no audio can come through still.I assumed there was a problem with my drivers so

:)

 

Input and Output of audio on computer?

Input and Output of audio on computer?

 

HFP devices no longer show as audio input or audio output devices (Win11)

All of my HFP Bluetooth devices are no longer available as audio input or output devices. A2DP devices still show as audio output devices.

I've tried:

• unpairing and repairing BT devices (Sony MDR-ZX770BN and a custom ESP32-based device)
  
• removing all BT devices (including hidden devices) from Device Manager, including the RFCOMM and SDP services and Intel wireless driver, etc. and reinstalling
  
• removing the Audio devices (Realtek) and reinstalling
  
• sfc /scannow (no problems found)
  
• checked registry Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Bluetooth\Audio\Hfp\AudioGateay and ..\HandsFree and both show registry value Enabled=1 (not that I've seen any diagnostic ever suggest checking these keys)
  
• pairing my headphones to a Win10 laptop, which works fine, and audio input/output devices allow me to select HFP (also A2DP)
  checking the headphones under "Control Panel\Hardware and Sound\Devices and Printers", I can confirm under "Bluetooth Services" the headphones show Audio Sink, and Hands-free Telephony, so SDP has discovered the HFP profile correctly
  
• my ESP32 device also has SPP (serial port) which works fine, and the headphones can use A2DP just fine, so Windows can use the other BT profiles on these devices
  
• running troubleshooter for Audio Input and Audio Output devices - the troubleshooter finds nothing, and doesn't even list the HFP device as an audio device
  

HFP was working OK before Christmas. At some point since then all HFP devices no longer show as audio input/recording sources or output sources.

My laptop is a Lenovo Thinkpad L15 gen 3, roughly 1 year old. Windows and drivers are all up-to-date.

 

Problem with input output device

Right-click on the volume icon in your system tray, then click on “Troubleshoot sound problems”. Wait for the troubleshooter to detect issues. If anything is identified, you’ll be able to fix it with the click of a button. ------------------------------------------- If you’re experiencing the “No Audio Output Device Is Installed” error, it might be because of your audio drivers. Here are the steps to follow to update your audio driver on Windows 10. Press the Windows + X keys on your keyboard and click on the Device Manager option from the menu. Expand the Sound, video and game controllers menu by clicking on the arrow next to it. Right-click on your audio device listed in the menu and choose Update Driver. Allow Windows 10 to look for the newest driver on your local computer or online, then follow any on-screen instructions. ---------------------------------------------------- If the update didn’t work, we recommend manually uninstalling and allowing Windows 10 to re-install your audio driver. Here’s everything you need to do. Press the Windows + X keys on your keyboard and click on the Device Manager option from the menu. Expand the Sound, video and game controllers menu by clicking on the arrow next to it. Right-click on your audio device listed in the menu and choose the Uninstall device option. Restart your computer. Windows 10 should automatically re-download the latest version of your audio device driver.