HP-ENVY-13-AH0002-OpenCore
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Hot-plugging USB-C HDMI 2.0 cable outputs distorted graphics
If you cold-boot the laptop, and hot-plug a USB-C HDMI 2.0 capable cable, the graphics are distorted on the external Monitor/TV. Found out, that if you first sleep the laptop and then plug in the cable, everything works as expected.
Not sure what is the different on the Hardware state between cold-boot and after-sleep state. Need to investigate further.