Latitude or Precision Laptop Ghost Touch with the Touchpad
Summary: Learn about a touchpad issue on the Latitude or Precision laptops.
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Symptoms
The touchpad on the Latitude or Precision laptop may work erratically or activate when no one touches it. The mouse cursor moves around on the screen by itself in the Windows operating system. The issue occurs when the LCD lid is closed after the laptop is started with a power button on the palm rest.
Affected Platforms:
- Latitude 5420
- Latitude 5520
- Precision 3560
Cause
Investigation concluded that the disable signal is not active in the touchpad, resulting in the touchpad stays enabled after closing the lid.
Resolution
For Latitude 5420, updating to BIOS version 1.36.2 or later on the computer resolves the issue. For Latitude 5520 and Precision 3560, updating to BIOS version 1.41.0 or later on the computer resolves the issue. To download and install the BIOS, reference BIOS Update Guide.
Produse afectate
Latitude 5520, Latitude 5420, Precision 3560Proprietăți articol
Article Number: 000224073
Article Type: Solution
Ultima modificare: 20 mai 2026
Version: 7
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