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No audio when a monitor is plugged into the MiniDP port of Surface Book or Surface Pro 4

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Symptoms

When you connect a monitor that supports audio to the MiniDP port of a Surface Book or Surface Pro 4 device, you don't get any audio signal through the monitor.

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Cause

This issue occurs if the sound driver is not enumerating the audio endpoint.

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Workaround

To work around this issue, try the following methods:

  • Restart Windows.
  • Disconnect the monitor, and then reconnect it to the MiniDP port.

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More Information

This issue may occur if you connect the monitor while Windows is running, or if you connect it while the device is sleeping or hibernating.

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Keywords: kb

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Article Info
Article ID : 3198180
Revision : 4
Created on : 7/19/2019
Published on : 7/19/2019
Exists online : False
Views : 264