What happened?

A bug happened!

I cant really show any screenshots but in windowed mode my monitor works fine at its 144hz refresh rate, but when I go into fullscreen it changes to 60hz and is extremely noticeable

Screenshots

No response

Relevant log output

No response

Iris and Minecraft Version

1.17 iris

Are you running Sodium along with Iris?

No

Operating System

win 10

What is your GPU?

rtx 3070

Java Version

java 16

Additional context

No response

It seems very unlikely that this is an issue caused by Iris or Sodium instead of some external driver / display configuration. I cannot reproduce this issue either.

Could you provide some screenshot of game, as well as your monitor setting screen if possible

I can in the morning but like I said I can feel the difference very significantly. I went into windowed mode and and locked it to 60fps and it felt no different from fullscreen unlimited. My monitor also goes black for a couple seconds when tabbing in/out, normally that means its changing resolution or refresh rate. I think the problem is that there isnt any fullscreen resolution mode picker unlike in vanilla.

I did just have a thought that you may need to change then game resolution setting, I believe you can change the refresh rate in game but changing the resolution

There is no option to change fullscreen settings

Press Shift+P while in video settings to access the vanilla fullscreen resolution slider. This is not an iris issue; it sometimes can happen with sodium.

with minecraft being locked to 60fps ive found It's usually an Nvidia driver thing. you need to use DDU and reinstall.