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URGENT - macOS Monterey -60Hertz refresh rate missing!!!!!

I upgraded my iMac to macOS Monterey - 60Hertz refresh rate missing!!!!! Everything was working 100% fine until i upgraded. Is there a fix for this or will I have to roll back to BigSur?

Posted on Jan 1, 2022 12:17 AM

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Jan 1, 2022 1:06 AM in response to lllaass

I have a 2015 iMac and it was working perfectly with BigSur.

I use the thunderbolt display port to convert to HDMI


When I connect to my HD Video Studio HS-2000 video mixer, I only have 25Hertz and 30 Hertz available.

Was using it with no issues in BigSur.

However, when I connect to my smart TV to use as an extra display, I get the 50Hertz & 60 Hertz Option.


It seems I may have to roll back to BigSur?

Any thoughts?

URGENT - macOS Monterey -60Hertz refresh rate missing!!!!!

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