internal microphone non-functional

E

EmilyCecilia

The problem: the internal microphone on my laptop is not working at all. Voice Recorder, Audacity, Zoom, Chrome - no program picks up any audio from the internal microphone. External microphones, whether plugged into the audio port or USB, work successfully.


Specs from dxdiag:

Asus VivoBook X512DA

Windows 10 Home 64-bit (10.0, Build 18363)

BIOS: X512DA.305

Processor: AMD Ryzen 3 3200U


Speakers (Realtek(R) Audio)
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0256&SUBSYS_10431821&REV_1000
Driver: RTKVHD64.sys
Version: 6.00.8838.0001
Date: 11/12/2019

Specs from Device Manager:

Speakers (Realtek(R) Audio) [Audio inputs and outputs]

Driver Provider: Microsoft

Date: 2019-03-18

Version: 10.0.18362.1

[Upon clicking Driver Details, I am told no driver files are required or have been loaded for this device.]

Event Log:


  • July 7, 2020, 10:20:29:

    "Device SWD\MMDEVAPI\{0.0.0.00000000}.{9d29c964-041a-4268-846b-5b794b8efeb3} was started.

    Driver Name: audioendpoint.inf

    Class Guid: {c166523c-fe0c-4a94-a586-f1a80cfbbf3e}"


  • Same timestamp: Device configured (audioendpoint.inf), Device not migrated


Microphone (Realtek(R) Audio) [Audio inputs and outputs]

Driver Provider: Microsoft

Date: 2019-03-18

Version: 1.0.18362.1

[Upon clicking Driver Details, I am told no driver files are required or have been loaded for this device.]

Event Log:

  • (July 7, 2020, 10:20:29)
    "Device SWD\MMDEVAPI\{0.0.1.00000000}.{ed443b47-51e6-4812-8214-5cf5a064a4b9} was started.
    Driver Name: audioendpoint.inf
    Class Guid: {c166523c-fe0c-4a94-a586-f1a80cfbbf3e}"
  • Same timestamp: Device configured (audioendpoint.inf), Device not migrated


Realtek(R) Audio [Sound, video and game controllers]

Driver Provider: Realtek Semiconductor Corp.

Date: 2019-11-12

Version: 6.0.8838.1

Driver Details:

C:\WINDOWS\system32\drivers\amdacpksl.sys [AMD, 1.0.0.39]​

"\drmk.sys [Microsoft, 10.0.18362.1 (WinBuild.160101.0800)]​

"\ksthunk.sys [Microsoft, 10.0.18362.1 (WinBuild.160101.0800)]​

"\portcls.sys [Microsoft, 10.0.18362.1 (WinBuild.160101.0800)]​

"\RTAIODAT.DAT [Unknown, Unknown]​

"\RTKVHD64.sys [Realtek Semiconductor Corp., 6.0.8838.1 built by: WinDDK]​

"\RtEventLog.dll [Unknown, Unknown]​

Event Log:

  • July 7, 2020, 10:20:19: Device installed (hdxhapasus.inf_amd64_7512b6c464706827) - Driver Management concluded the process to install driver [above] for Device Instance ID HDAUDIO\FUNC_01&VEN_10EC&DEV_0256&SUBSYS_10431821&REV_1000\5&311967DD&0&0001 with the following status: 0x0.
  • Same timestamp: Device started (IntcAzAudAddService)
  • July 7, 2020, 10:20:18: Device configured (oem23.inf), Device configured (oem9.inf), Device not migrated
  • July 7, 2020, 10:20:08: Device install requested


AMD High Definition Audio Device [Sound, video and game controllers]

Driver Provider: Advanced Micro Devices

Date: 2019-07-10

Version: 10.0.1.12

Driver Details:

C:\WINDOWS\system32\drivers\AtihdWT6.sys [Advanced Micro Devices, 10.0.1.12]​

"\drmk.sys [Microsoft, 10.0.18362.1 (WinBuild.160101.0800)​

"\ksthunk.sys [Microsoft, 10.0.18362.1 (WinBuild.160101.0800)]​

"\portcls.sys [Microsoft, 10.0.18362.1 (WinBuild.160101.0800)]​

The Event Log contains no entries later than May 5, 2020.


Things I have tried, all of which resulted in no change:

  • updating audio drivers to newest version by downloading the version specific to my machine directly from ASUS. (uninstalled old version, used Windows PowerShell as admin to run .bat package downloaded from manufacturer, restarted machine.)
  • updated AMD chipset driver from the same source.
  • checked microphone privacy settings: apps have access to microphone.
  • checked that device was enabled in Sound settings: it is.
  • disabled Audio Enhancements.
  • ran audio troubleshooter: no errors detected.
  • restarted Windows Audio Endpoint Service and Windows Audio Service.
  • restarted Realtek Audio Universal Service.
  • used Device Manager to select Windows drivers for the Microphone (Audio Endpoint, High Definition Audio Device).
  • tried installing older Realtek drivers in compatibility mode: drivers failed to install.
  • [edited to add] checked Windows Update: up to date.



The system is, as of now, running the latest Realtek audio drivers, AMD Chipset drivers, and is up to date on Windows Update. All settings point to the microphone functioning correctly and Windows states that it is. Nonetheless, it does not pick up any input in any program.


Any ideas?

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