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I have 4 external monitors (non-mac) with MacBoook 16". 2 of them (C27JG5x and Optix G24C support 144GhZ.) I have a few issues with that.

  • Apple Displays settings doesn't have an option to change the refresh rate.

Screenshot of the Displays system preference pane

Screenshot of the program Display Menu showing display resolutions

Unfortunately, each time I unplug displays (or Reboot/put my Mac to sleep) the Refresh Rate setting resets to 60Ghz, however, macOS stills remember the Display arrangement and their resolutions.

Is there any way that Macbook would use the previous refresh rate settings as well?

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  • have you checked with NVRAM Reset?
    – Udhy
    Mar 2, 2020 at 10:30
  • Yes, it didn't help.
    – deathangel908
    Mar 2, 2020 at 10:35

1 Answer 1

Reset to default
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Choose Scaled, but hold down the Option key when you click on it. You'll get a list of supported resolutions. If you find your Monitors do this often, try using an EDID emulator on your external monitors. (note: non-affiliate link)

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  • I just resolved this issue. I switched back to archlinux :)
    – deathangel908
    Jul 19, 2022 at 13:35
  • While changing to scaled does allow setting the refresh rate, after sleep or restart the refresh rate is reverted the default and away from any custom setting (e.g., reset from 60Ghz back to Variable Refresh Rate)
    – Matthew Nessworthy
    Jul 20, 2022 at 11:24

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