ATEN Global Service Site


Subject :
	UC3008 / No display on HDMI monitor

Description :
	No display on HDMI monitor after connecting UC3008 between source device and monitor.

Solution :
	Possible reason and action are listed below: 1. HDMI cable quality poor->Try HDMI 2.0 standard cable 2. USB-C port of source device does not support video Alt mode or Thunderbolt 3 standard->Try source device with video Alt mode or Thunderbolt 3 standard How to identify your laptop support DP Alt mode, please refer to the FAQ#6115 https://eservice.aten.com/eServiceCx/Common/FAQ/view.do?id=6115

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