Color profile defaults to sRGB IEC61966-2.1, won't save changes

The "Show all resolutions" slider replaces the Option click.

Your options don't even show the monitor's maximum resolution of 2560 x 1440. The Mac itself supports an external resolution of up to 6016 x 3384 (6K) on up to 2 separate monitors.

This suggests you're using an HDMI connection rather than DisplayPort. You need to use a Thunderbolt 4 to DisplayPort cable to get the most out of your ViewSonic. The monitor has both an original larger DisplayPort port, and a mini version. You can use either.

I know the monitor specs show…

HDMI digital video output

Support for one display with up to 4K resolution at 60Hz

DVI output using HDMI to DVI Adapter (sold separately)

…but depending on the monitor's electronics, HDMI doesn't always work well.

We use this one with both of our Mac minis to EIZO monitors.

Hello, hope you've managed to fix your profile saving change. I'am replying here because i think i got the flickering problem you said you found a solution for. I would like to know how you solved it because i tried many things and none of them work. (Also i don't have the LCD profile that can solved the problem every one is talking about)

have a good day!