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It seems like a reset and is happening a dozen times per hour. It happen via HDMI on my Dell U3415W and on a low resolution projector (1024x768px), i used the original Apple adapter but also the Minix.

Sometimes when it returns i have heavy artifacts on the display and have to unplug/plug the hdmi again for normal operation.

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  • This shouldn't be happening. Did you contact Apple about this? This might be a defect with the onboard or external graphic card. – rwzdoorn Aug 23 '16 at 12:50
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    not yet, will try that and update this post – kritop Aug 23 '16 at 17:43
  • I have had this problem with 2 different MacBook 2016's and numerous Dell monitors, all connected by HDMI via Apple's Digital Multiport Adapter. – jaydisc Nov 29 '16 at 8:08
  • I've updated to Sierra 10.12.3 and the problem remains. It goes black even more often – vladimir Feb 22 '17 at 5:55
0

This issue was fixed with macOS Sierra 10.12.2 (16C679)

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