120hz not supported on Xbox Series X with a 144hz monitor

series x does not support 144hz, only 120hz.

Until you don't proof me this specific monitor (Xiaomi Mi Curved 34) enables 1440p@120hz with Xbox Series X, your comment is meaningless.

Yeah, there are some monitors with 1440p@120hz support for Xbox series s/x, that simply doesn't mean that ANY 1440p+ monitor with 120hz+ (especially 144hz+) can do it. Period.

I've tried everything, that (1440p@120hz) simply doesn't work with that monitor. I've already listed every step I've tried, I'm not gonna write it again.

Please read previous comments before posting the same dried comments...

It's nothing to do with your console...it is a limitation with your monitor.

Your monitor comes with 2 HDMI 1.4 ports (not 2.0)....120Hz and 144Hz are only supported via DP on this monitor, so this would be why it is defaulting back to 60Hz every time

Here's a forum thread on Linus Tech Tips about it (albeit with the better Series X but it's the same thing):

https://linustechtips.com/topic/1286444-monitor-cant-run-xbox-series-x-at-144hz/

Edit: Have edited the thread to provide more clarity regarding HDMI 1.4

Thank you again, last question, will the xbox series X be able to support 144hz for monitors?

No, they will be capable of 120hz over HDMI 2.1 if you have a monitor with HDMI 2.1,

But, as of yet, there are no gaming monitor with HDMI 2.1,

The first gaming monitors to have HDMI 2.1 wont be available until the end of this year to early 2021.

for 120hz you need i think hdmi2.1.

besides connecting the s at 120hz is not going to magically let it run at 120fps, you will be lucky to get 40fps on most games. kills my eyes running so slow.

HDMI 2.1 is only needed if you plan to game at 4K for 120hz , on a 4K 144hz monitor, However there's no gaming monitors available at the moment, that yet has HDMI 2.1, the first HDMI 2.1 monitors that are likely to come in are around the same time as the
Series X (Q4) launch or early 2021 (Q1),

1080p and some 1440p monitors can do 120hz over HDMI 1.4 if it's supported, but best ideally is HDMI 2.0 for 1440p for 120hz,

HDMI 2.0 can do 1080p / 1440p at 120hz and 4K at 60hz,

HDMI 2.1 can do 1080p / 1440p / 4K at 120hz.

For the Xbox Series X, it best to get a 4K TV or monitor that supports 120hz and has HDMI 2.1, to get the full potential out of the Series X.