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The sound can not be heard from the external display's speaker connected to the DisplayPort to HDMI converter - ThinkPad T410, T410i, T410s, T510, T510i, W510, W701, W701ds (Discrete graphics model)


The sound may not be heard from the external monitor's speaker which is connected to the DisplayPort-HDMI converter (Dongle). Some dongles do not work with audio, but others work with no problem.

Affected configurations

Any of the following ThinkPad discrete graphics model systems running Windows 7 (32-bit, 64-bit) may be affected by this symptom:

  • T410, T410i, T410s
  • T510, T510i
  • W510, W701, W701ds



Use the dongles listed below that Lenovo has tested with the above systems.

Lenovo recommended dongles

  • Alias ID: MIGR-76703
  • Document ID: HT031670
  • Last Updated :17 Jun 2014
  • © 2015 Lenovo