Resolution of Dashboard Lower on 4k 120hz?

Are you using 120Hz and 4K in your console?
Or, did you tried using a lower resolution (like 1080p or 720p) to see if the issue persist?

Please share the exact model, it needs to look like this "LG 27GL850 27'' "LG 27GL850 27"

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In the meantime, are you tried to use 4K + 120Hz?
If you try lowering the resolution the 120Hz option appears?

Thank you for contacting us! I'm Anderson, an Independent Consultant and a Microsoft user like you.

good night

Microsoft claims that:

"4K games with 120 frames per second are available if you have all of the following:

an Xbox Series X console

an Ultra High Speed ​​HDMI cable with support for HDMI 2.1

an HDMI 2.1 compliant TV

To enable 4K games at 120Hz, press the Xbox  button to open the panel and select Profile & System > Settings > General > TV & Display Options. Make sure your Resolution is set to 4K UHD and set Refresh Rate to 120Hz.

Note If you have an Xbox Series S console or your TV does not support HDMI 2.1, you can still enable 120Hz gaming at a lower resolution. To do this, set your Refresh Rate in TV and Video Options to 120Hz. If your resolution was previously set to 4K, the console will automatically adjust the resolution to support the 120Hz refresh rate. Otherwise, select a resolution among the available options."

if you set the correct settings and not the image or it doesn't reach the 4k resolution it is not compatible to run in this resolution on the Xbox X series.

Yes, as shared above, you can use 120 Hz with the monitor you have, but as both your monitor port and screen don't support 4K, it's enough with set a lower resolution to see the 120Hz frequency.

Hi,

Could you provide us with the make a model of your TV?

If your TV is only HDMI 2.0 then it won't actually natively support 120Hz. Only certain supported HDMI 2.0 monitors can run 120Hz, but are generally limited to 1440P resolution.

It's more likely your TV has a 120Hz mode purely for Motion interpolation. This can make lower frame rate video from TV and movies appear smoother. However, with games Motion interpolation will add a huge amount of display lag. Real 120Hz TV's are newer HDMI 2.1 displays.

Xbox games are always rendered at the resolution they were designed to run at. So a 4K game On a 1440P display will can run internally at 4K and is then automatically scaled to whatever resolution the display is set to.