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Q: 4K TV thunderbolt connection issue to MBP

When connecting Macbook pro to 4k samsung TV through thunderbolt connection, I can watch about 10 minutes of video and then the tv screen will start to go repeatedly go black for couple of seconds before recovering. It appears that the Macbook pro refreshes the display settings.  Sometimes after the tv goes black and recovers, the audio only comes through the Macbook pro. Sometimes it does not recover at all and tv is not recognized anymore. When I'm not playing video and doing nothing, the TV is fine.  I looked at settings to make sure MBP does not go to sleep, tv energy settings are all off.

 

Unplugging the connection and plugging it in solves the issue for another 5-10 min before it starts occurring again. 

 

Tried different thunderbolt connectors.  Read about thunderbolt firmware update but I have updated everything i can through the app store.

 

Running El Capitan.

 

Any help is greatly appreciated!

MacBook Pro with Retina display, OS X El Capitan (10.11.1)

Posted on Nov 2, 2015 7:18 PM

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