Make sure you are not opening a duplicate.

• I have searched the issue tracker and did not find an issue describing my bug.

Minecraft version.

1.20.1

Rubidium/Embeddium Extra version.

0.5.3.1+mc1.20.1-build.110

Rubidium/Embeddium version.

Embeddium 0.2.9+mc1.20.1

What happened?

Using the setting to reduce render resolution on macOS doesn't work properly. When enabled, it does indeed have the resolution (during loading of the game), but only squishes the rendered frame into the corner. If the window size then changes, the resolution goes back to full. I've tested the feature on the latest version of Sodium Extra on Fabric and it worked fine.

This is how the game looks after I start it in full-screen:

This is how it looks when the window is changed (back to full res):

Relevant log.

I suppose not necessary, but I will post one if needed.

Additional information.

I can confirm this is happening even if Embeddium, and Rubidium Extra are the only mods installed and happens with both Rubidium and Embeddium.

I suspect it has to do with d60f444

Does this happen with rubidium-extra 0.5.1+mc1.20.1-build.99?

It does happen on rubidium-extra 0.5.1+mc1.20.1-build.99, still the same, loads in a corner of the window and if the window dimension changes it goes right back to full res.

This is related to the earlyWindow forge.

Does that mean this could/should be passed onto the Forge/NeoForge issue tracker, or is this an out of luck situation?

I don't know, you might try reporting it to them....