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Variable Refresh Rate (FreeSync / GSync) Flicker

 2 years ago
source link: https://forums.macrumors.com/threads/variable-refresh-rate-freesync-gsync-flicker.2320463/
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External monitor VRR flickering on macOS - are you affected?

CMMChris

macrumors 6502a

Original poster

So macOS Monterey finally comes with support for external variable refresh rate monitors using FreeSync and GSync. I am using a FreeSync compatible Samsung monitor myself, which is working absolutely flawlessly in Windows machines and my Xbox One X with FreeSync enabled.

Unfortunately, this is not the case on macOS Monterey. If I enable FreeSync, the screen shows massive flickering with every movement on the screen (I attached a video where you can see it). Turning FreeSync off on the monitor itself or setting a fixed refresh rate in the macOS screen settings will eliminate the flicker. As soon as I turn variable refresh rate on again, flickering comes back.

This is seriously annoying and makes FreeSync absolutely unusable for me. I already double-checked everything to rule out an issue with my set-up. I switched cables, rebooted the Mac, re-installed the OS and tested the monitor again on a Windows PC and my Xbox - none of which show the flickering with FreeSync enabled.

Furthermore, I have opened a bug report with Apple already, but would like to collect some data points across the community. So if anyone here on MacRumors is using a FreeSync or GSync capable screen, please test it using Monterey and report if you have the flicker as well. It would be handy if you could also share the exact monitor model and Mac model you have.

Big thanks in advance to everyone participating, and don't forget to open a bug report yourself if you are affected. Feel free to quote my case number for reference: FB9722940
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Last edited: Oct 31, 2021

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