RX 570 black screen boot

[stoianpenov]

Hi guys , i'have already installed High Sierra 10.13.6 with GTX480(working super) and now i'm trying to change with RX 570 i,m trying with/without Lilu+Weg kext also with all inject options inject Ati , inject RadeonDeInit and all combination but system show apple logo and loading then switching off card but i still hear sound from trying hit enter when log in.
My system: Dell T5500 CPU x5687 RAM 18GB working video gtx480 non working RX570 ,Legacy mode clover install
Any help ?

 

[apfelwurm]

Using HDMI instead of DP-Port sometimes helps during boot..?

 

[stoianpenov]

Hi ,thank you for good solution HDMI now work but with only 1920x1080 but my display have 2566x1440 any solution for this
Best regards