You should not need EDID, or EFI stuff here. If you get that screen that looks messy, fuzzy, remove your dsdt.aml and restart and see if that changes anything. Some DSDT fixes rename. GFX to P0P3.
But if you remove your DSDT make sure you place the right kexts back in your Extra's folder so you can boot properly.
If I use a patched dsdt.aml that edit the GFX string it will go fuzzy, my theory anyway. I have tested twice with an edited DSDT that renames the GFX string, Goes fuzzy, sometimes just a blank screen. Hope this helps you.
@ mojtabazarei you should credit checcco for helping you to succeed in full resolution and qe/ci
Thanks for your idea. My DSDT is too basic, just few fix like CMOS. But I'll test without it.
Sorry to mojtabazarei because this is not about 5730.