External Microphone Will Not Work After the Microphone Is Disabled and Enabled in BIOS

Summary: Disabling and enabling the microphone in the BIOS may result in an external mic not working on Latitude or Precision laptops.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
Check out other resources

Symptoms

After the operating system starts, and an external microphone is plugged in if the microphone is disabled in the BIOS the external microphone will not work. The sound effect icon has changed in the voice recorder.

Affected models:

  • Latitude 7340
  • Latitude 7440
  • Latitude 7640
  • Precision 7680
  • Precision 7780

Cause

No cause information is available.

Resolution

Per design, enabling the microphone requires powering the computer off and /or unplugging and replugging in the external microphone.

Affected Products

Latitude 7340, Latitude 7440, Latitude 7640, Precision 7680, Precision 7780
Article Properties
Article Number: 000211106
Article Type: Solution
Last Modified: 23 Sept 2025
Version:  6
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.