sometimes, 6600xt will black screen after reboot, any body can help me?

[myheart]

motherboard: rog strix z490-i
cpu: i7-10700
ssd: SN750 for macOS and samsum 980 evo for windows
GPU: XFX 6600XT fighting
problem:Sometimes, black screen after code running when booting with fan working，agdpmod=pikera had been added into boot args, and DP port was used for display. And the most hapened after reboot from windows system. I don't know whether there is a connection between them.

 

[Middleman]

motherboard: rog strix z490-i
cpu: i7-10700
ssd: SN750 for macOS and samsum 980 evo for windows
GPU: XFX 6600XT fighting
problem:Sometimes, black screen after code running when booting with fan working，agdpmod=pikera had been added into boot args, and DP port was used for display. And the most hapened after reboot from windows system. I don't know whether there is a connection between them.

Have you added your Intel IGPU device properties into the PCIRoot Device Property tree? It has to have aapl,ig-platform-id of 03009BC5 and device-id of 9BC50000