Backlight not working on Ventura 13.6.7, Intel UHD620

Hello people, i got my Ventura working. But for some reason backlight doesnt turn on, even after 5 minutes. I tried using flags:

keepsyms=1 debug=0x100 -igfxblr -igfxbls -igfxbrs -igfxonln=1 -lilubeta -alcbeta -wegnoegpu

As well as: keepsyms=1 debug=0x100 -igfxblt -igfxbls -igfxonln=1 -lilubeta -alcbeta -wegnoegpu

And keepsyms=1 debug=0x100 -igfxblr -igfxbls -igfxonln=1 -lilubeta -alcbeta -wegnoegpu

Yet none of them work. The flags initially did work in the installer though, which is strange. Also, Sonoma doesnt have this problem.

My EFI is on GitHub