[OC 0.5.9] Display Flickering when using HDMI, DisplayPort works correctly

Hey, I'm new to hackintoshing, and completed my first build this week, using the vanilla desktop guide. After a lot of tries finally got almost everything working except for this.

I'm using brand new HDMI cable that came with the monitor, that works perfectly with a legit MacbookPro, but I'm getting some screen flickering like in the video and also some greenish "shadows" when using HDMI. DisplayPort works perfectly

Anyone knows how to fix this?


  • Monitor: LG 27" IPS 4K 27UL500
  • Motherboard: Z390 I AORUS PRO WIFI
  • CPU: Core i7 9700
  • GPU: Integrated HD Intel 630 (no Discrete Graphics)

Relevant info on config.plist

  • PlatformInfo->Generic->SystemProductName = iMac19,1
  • DeviceProperties->Add->PciRoot(0x0)/Pci(0x2,0x0)->device-id=923E0000
  • DeviceProperties->Add->PciRoot(0x0)/Pci(0x2,0x0)->AAPL,ig-platform-id=07009B3E
  • DeviceProperties->Add->PciRoot(0x0)/Pci(0x2,0x0)->framebuffer-patch-enable=01000000


submitted by /u/jucas_lo
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