MBP 2021 and Eve Spectrum 4K/144

[olegtik]

I have Latest MBP 2021, just tried to connect Eve Spectrum 4K to MBP via USBC->DP Cable and I can get 4K/144Hz and HDR.
However over USB-C I can only get 60Hz ( with or without HDR ). Turning 144Hz turning screen blank.
I just updated to latest firmware i.e. 104

USB-C Cable is Actually Apple Thunderbolt 3 cable.
Apple Thunderbolt 3 Cable

[Zodiac09]

This problem is currently investigated

@Zodiac09

The screen doesn’t turn on with macOS Monterey
Switch the Spectrum USB C bandwidth priority to data, there is a problem with 144Hz on Monterey.

Switch USB C bandwidth priority to data and check if it worked? You will get 4K 60. I think it’s because the issue with 4K 144hz in MacOS Monterey

144Hz not working with MacOS Monterey
This is currently investigated

[NZgeek]

It was also noted somewhere that DSC isn’t currently working over USB-C, and that’s needed to get 144Hz.

It should be possible to get 120Hz without HDR or ~98Hz with HDR, but it’s possible that the Mac doesn’t surface those as options.