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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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4 replies

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?

lllaass

Level 10

210,471 points

Jan 1, 2022 2:51 AM in response to Henk Grimsell

You can either go back to Big Sur or wait and see if a subsequent update to Monterey will get it right.

lllaass

Level 10

210,471 points

Jan 1, 2022 12:48 AM in response to Henk Grimsell

What refresh rates are available?

What display device are you using and how is it connected?

Jan 28, 2022 11:45 AM in response to Henk Grimsell

same thing - just upgraded to Monterey 12.2, refresh dropdown now missing entirely. Alt+click on 'scaled' does not show it. Monitor stuck in 30hz.

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