Odyssey G7 (LC27G75T) at 1440p 240 Hz doesn't work

The way this manifests specifically is that the signal keeps dropping out, at least from the perspective of the display. Just to be clear here, 1440p and 240 Hz (including VRR, but whether it's used or not doesn't have any impact) individually function, but it's just when they're combined together that it breaks. Another odd thing that happens is that sometimes when attempting to switch to a different configuration the monitor seemingly turns off completely, however this is remedied by just moving the mouse around, unless attempting 1440p at 240 Hz in which case I have to unplug the monitor from the computer to be able to do anything with it (including accessing its OSD).

I think this is specifically a Hackintosh issue because I couldn't find anyone else mentioning it and it works fine in Windows (on the same hardware, of course).

Relevant hardware (I think):

  • Intel Core i5 12500

  • ASRock H470-ITX/ax

  • Sapphire Radeon RX 6600 PULSE

submitted by /u/QuartzSTQ
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