Black screen after install

I'm getting black screen after boot (trying to install 10.15.4), i have tried (-v debug=0x100 slide=128 keepsyms=1 npci=0x2000 agdpmod=pikera alcid=1) and without but still black screen, i'm using Display Port on my RX480 if that make any difference, i will try HDMI yet. I've searched but can't find any solution! Have Whatevergreen and Lilu latest as well. On my clover install 10.13.6 I used only Lilu and VegaGraphicsFixup.kext (no whatevergreen)so was wondering if this is maybe a solution?

Gigabyte X99P-SLI 6800K AMD RX480

submitted by /u/ekwipt
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