Mac Studio external monitor turns off and on randomly

Mac Studio external monitor turns off and on randomly and frequently every day, which is really annoying.

FYI:

  1. I connected the mac studio to a BENQ ew3270u display via USB-C, tried all 4 ports on the back but all of them experienced the issue
  2. Mac studio uses Monterey 12.6
  3. I also hooked up my Macbook to the same display via USB-C but didn't observe the same issue
  4. I changed a new cable, still didn't resolve the issue

Mac Studio, macOS 12.6

Posted on Sep 24, 2022 04:59 AM

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Sep 24, 2022 06:54 AM in response to incomple

Your display uses a very high data rate, because it has many deep-color features. the blanking is likely to be caused by your exceeding the 'ordinary' USB-C cable's capacity, which is about 20 Gbit/sec.


To enjoy its full capabilities, you should be using a 40G bit/sec rated cable with length under 0.8 meters to run this display on state of the art computers.

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Mac Studio external monitor turns off and on randomly

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