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Macbook pro connected to LCD issue

I connect my Macbook to an external LCD screen, using theirVGA and HDMI ports. When I try:

  • The LCD is black with no signal
  • The MacBook flickers

LCD screen, VGA-HDMI cable checked and work fine.

What can I do fix this issue?

Mac Pro, OS X El Capitan (10.11.3)

Posted on Feb 13, 2016 10:15 PM

Reply
10 replies

Feb 14, 2016 8:35 AM in response to mdtuyen

I tis likely that the HDMI on the Mac does not provide sufficient power to the converter.

Here is a similar converter

http://www.newegg.com/Product/Product.aspx?Item=N82E16812119556&utm_medium=Email &utm_source=IGNEFL031215&nm_mc=EMC-IGNEF…

it includes this statement

FLEXIBLE POWER SOLUTIONNo power adapter is required. But in order to cover cases of connecting to a low-powered video card, the Coboc CL-AD-HD2VGA-6-BK offers a Micro USB female port for getting extra power from a computer or power adapter (not included).

Macbook pro connected to LCD issue

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