Resolution on external monitor limited to 1920 x 1080 using HDMI

Symptom

Monitors connected to certain Inspiron and Vostro systems using an HDMI cable only support a maximum resolution of 1920x1080.

Affected systems:

• Inspiron 3493 Notebook
• Inspiron 3593 Notebook
• Inspiron 3793 Notebook
• Inspiron 5493 Notebook
• Inspiron 5593 Notebook
• Vostro 3491 Notebook
• Vostro 3591 Notebook
• Vostro 5568 Notebook
• Vostro 3471 Desktop

Solution

The system is working as designed

The HDMI connector on the motherboard used in these Inspiron and Vostro systems can't output a resolution higher than 1920x1080. This is the motherboard working to the limits of its design.