Dell P2423DE Monitor Video Flashes With Precision Laptop Connected

Summary: Learn about a Precision 7670, Precision 7680, Precision 7770, or Precision 7780 having flashing video issues when using a Dell P2423DE monitor.

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Symptoms

Video on a Dell P2423DE monitor flashes when an affected Precision laptop with no AC adapter is connected. This behavior happens when the Precision laptop is in the BIOS or the resource usage is high.

Affected Platforms:

  • Precision 7670
  • Precision 7680
  • Precision 7770
  • Precision 7780

Affected Monitor:

  • Dell P2423DE

Cause

The Precision laptop drains a significant amount of power from the monitor when using the monitor as a single power source.

Resolution

This is working as designed. The issue is resolved when an AC adapter is connected to the Precision laptop.

Affected Products

Dell P2423DE, Precision 7670, Precision 7680, Precision 7770, Precision 7780
Article Properties
Article Number: 000212042
Article Type: Solution
Last Modified: 08 Apr 2025
Version:  4
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