Unsupported Hertz (120hz on 60hz monitor)

Hello!

Thanks for reaching out to us here on the forums with this situation. I understand you're having trouble with your display not showing picture on your monitor is that correct? Can you try connecting it to another monitor and TV and see if its still not displaying
properly?

Also I recommend you try:

Reset your display settings. Here's how:

1. If there's a disc in the Xbox One console, eject it.
2. On the console, press and hold the Xbox button for five seconds to turn off the console.
   
3. Press and hold the Xbox button and the Eject button until you hear a beep to turn on the console. You will hear one beep right away and a second beep 10 seconds later. The power light will flash on before the second beep.
   DO NOT LET GO until the second beep occurs.
   Note This will boot your console in low resolution mode (640 × 480). To reset this setting, go to
   System > Settings in the guide, select
   Display & sounds, Video options, and then TV Resolution.
   

You can check out this and other support steps in this article:
Troubleshooting a blank TV screen or monitor while your Xbox One is on

I can't find an in-depth specifications list for that monitor but I suspect either of the following may be the cause:

- The monitor's native refresh rate is 60Hz and the monitor then uses the Adaptive Sync to get the 165Hz. Xboxes can't utilise that so is retricted to 60Hz

- It has a 120Hz setting but it's not exactly 120Hz which the Xbox needs. Some monitors will be listed as having a 120Hz mode but it is actually 119Hz

It could of course be another reason but those 2 are the reasons monitors usually won't display 1440p 120Hz

You won't get 120hz, but the monitor should support 60hz.

Does your monitor support both VRR and 120Hz on Xbox? I have read that only specfic monitors out there support both enabled. For awhile the VRR was only supported at 60Hz but there are some monitors now that will allow you to enable both VRR and 120Hz.

1440p 60Hz is supported by your console, enabling it would depend on your TV / monitor if it supports the specific setting. Most monitor / TVs hide unsupported modes automatically.

Regards,

Alvaro