Enabling multiple monitor support on Edge 71, Edge 72, Edge 91, Edge 92, M71e, M81, M82 SFF/Tower, M91, M91p, M92/p SFF/Tower.

Symptom

Unable to configure more than two displays while three or more are attached to the system using a PCI-Express video adapter graphics card and the Intel HD Graphics.

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Affected configurations

The above symptom may occur on the following systems:

The system is configured with a PCI-Express video adapter graphics card.

Note: M91/p Eco Ultra-Small Form Factor (USFF) and M92/p Tiny systems do not support PCI-Express video adapter graphic cards.

Solution

Default BIOS setting for the video Devices is [AUTO] and must be changed to [IGD] as shown below. Enable Multi-Monitor Support in BIOS Setup as shown in the picture below and then press F10 Save and Exit.

The following BIOS settings are required:

Select Active Video = IGD

Multi-Monitor Support = Enabled