I have this same issue.
without acceleration, mostly working but I saw the same graph glitch as #12 post.
with acceleration, it boots into black screen but with a working mouse cursor.
I can even blind type password to login.
Clover Config
** DSDT -> FixDisplay=True
** Inject ATI = true
** Deinit = true
** FakeID = 0x68101002
** FBName = Futomaki
I have tried combinations of Deinit/FBname, but still the same. what else to try?
Boot args:
-lilubetaall debug=0x100 -disablegfxfirmware -v keepsyms=1 npci=0x2000
Kext lilu + weg
38 2 0xffffff7f82cb9000 0x79000 0x79000 as.vit9696.Lilu (1.3.8) 6AC0899D-56DF-397C-9E33-594B8D35B735 <8 6 5 3 2 1>
41 0 0xffffff7f82d48000 0x66000 0x66000 as.vit9696.WhateverGreen (1.3.1) 56EDBD6D-0588-3399-A70B-97666389502A <38 13 8 6 5 3 2 1>