how to set internal resolution to 4k?

[datemasamunex]

is there no option you can manualy set the internal resolution with?

[Kodiack]

You can set the internal higher resolution for games above what the GUI allows by adding a line to their INI files. Check out this forum thread for information on handling INIs, particularly under the "Choosing Internal Resolution" section.

[Dan_Tsukasa]

You could do it in the games .ini settings, even going as high as 6k I believe, and 8x internal resolution.

But if you have a 4k monitor then simply playing in fullscreen would give you auto4k (provided you picked 4k from the dropdown), if you don't have a 4k screen, then its not going to be 4k really, its going to be upscaled and then downscaled to fit your monitor, ending in it looking much worse than 4k.

Another option would be to get the custom Dolphin build floating about on the forums here: https://forums.dolphin-emu.org/Thread-unofficial-ishiiruka-dolphin-custom-version I've not used it myself but I hear its good and the developer is quick to fix bugs and is quite responsive.

[JMC47]

I'd recommend using the INI to put in higher internal resolutions.

[kirbypuff]

Option #1: Auto (Multiple of 640x528) in the graphics settings

or

Option #2: "EFBScale = 9" in the .ini