zlacker

My guess is that switch simply doesn't support 144Hz, so if it works at 60Hz then you have your answer.

>>technt+(OP)
They advertise 4K@60Hz and my display is at 2560x1080 @ 144Hz. Math says my case should be supported but yeah, computer standards are often non-intuitive. I'll try with 120Hz and then 60Hz just to ascertain limits as you suggest. Thanks.