Macbook Air M1: No 4K@60Hz possible on my 32" 4K BenQ EW3280U

Last week I received the MacBook Air 13" 2020 with the M1 chip. To my surprise, it fails to output 4K@60Hz via UBC-C on the BenQ EW3280U, resolving only 4K@30Hz.


I also bought a USB-C Thunderbolt cable (USB C to DisplayPort Cable 8K@60Hz Maxonar 4K@60Hz/144Hz/120Hz 5K@60Hz 2K@240Hz Thunderbolt 3 to DisplayPort Cable HBR3 DP 1.4 

) which also outputs 4K@30Hz maximum.


Both of deze cables work on this monitor 4K@60Hz with 2 other tested devices.


What is the problem on this?



Posted on Dec 13, 2020 9:22 AM

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Posted on Mar 22, 2021 1:07 AM

Right now M1 do not support 4K 60Hz over DisplayPort Interface (which going through USB-C or Thunderbolt).


You need to use USB-C to HDMI Adapter like Belkin F2**038btBLK.


Works fine, support 4K, 60Hz, HDR in Netflix.


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Macbook Air M1: No 4K@60Hz possible on my 32" 4K BenQ EW3280U

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