1440p/120hz on Series X with Dell S3220DGF monitor

Hi neversatisfied415,

I’m about 99% sure there is nothing wrong with your Xbox One. The supported resolution and refresh rate is 1080P/1440P @ 120hz. It wont go higher than that. As for that Dell monitor, on these forums I have come across people having issues with getting 120hz
over 1440P on that model. Could it be that the feature was not activated via firmware? Only Dell Support can help you there.

I have been thinking about a 1440P monitor for a while now and so far my research is pointing towards the Gigabyte models where the user manuals state support for 1440p/120hz. I am waiting to see what resolutions are supported by Series X and if we finally
get 3440x1440 before commiting.

My suggestion is before committing to any 1440P monitor check the user manual to see if it clearly states support for 1440P/120Hz over HDMI. I would also be looking at newer released models of monitors (2019 onwards)

I would look into your monitor and call DELL not Microsoft. I also have a One X and have never had any problems, as soon as select 120hz it automatically drops me down from 4K to 1440p. You must be misunderstanding something about your monitor as there
must be a defect of some sort or your monitor does not support 1440p at 120hz.

For reference, before responding I booted on both my One X's. One is connected to a Samsung 4K QLED and I had no problem switching from 4k 60 to 1440p 120. My other X is connected via an LG 4K monitor and again when selecting 1440p OR 120hz it automatically
selects 1440p or 120hz without any issues.

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...

How old is your monitor? I only ask as I found this on the Dell support site:

https://www.dell.com/community/Monitors/S3220DGF-not-running-120Hz-5/td-p/7574963

It seems sometime between 2019 and 2020, they may have made changes to that model to enable 120Hz...as the community manager mentions:

"You are referencing the new S3220DGF User's Guide A01 dated April 2020 which shows HDMI 2560x1440 120Hz."

"All past S3220DGF + Xbox One X threads referenced the old User's Guide A00 dated September 2019 which did not show HDMI 2560x1440 120Hz."

"The manufacturer at the factory is installing a newer EDID (Extended Display Identification Data) on New unsold and used/refurbished S3220DGF to allow HDMI 1920x1080 120Hz and HDMI 2560x1440 120Hz."

So, if your monitor is pre-September 2020, then it would be working on the old timings which won't allow 120Hz due to the EDID timings. If you have a PC, you can check to see what it shows for the 120Hz range....the Xbox needs a timing of exactly 120Hz whereas sometimes a monitor timing will be 119.99Hz

The Xbox Series X will do 120Hz but no more, regardless of resolution or monitor.

I would check to see if other Xbox Series X owners have confirmed to achieve 1440p120Hz on those monitors before purchasing.

Maybe a google of "xbox series x 1440p 120hz ___________ " and insert the monitor model to see if people have posted about their monitor and Series X working.