Hackintosh (Prime Z490A) problem with dual monitor (DP and HDMI)

[iMhack]

Hi guys,like in the title i have a problem with an hackintosh,perfect in every aspect,with that characteristics:

i7 10700k Asus Prime Z490A Crucial Ballistix 4000Mhz 64Gb 2x Ssd nvme

I have a little (but very bad) problem,if i start the pc with only the hdmi cable connected i don’t have any problem,i use a 29” lg ultrawide with a very fantastic experience. The problem is that,i use a second screen for work and when i plug the DigitalPort cable (with the pc already ON) i can use booth with no problems,but if i start the pc with both the cables connected i have bugs with line,distortion,black screen flashing on both screens.

Please,how can i solve that? Help me guys

 

[Edhawk]

You need to read and follow the Intel Framebuffer guide, as you don't appear to have a discrete graphics card.

[GUIDE] General Framebuffer Patching Guide (HDMI Black Screen Problem)

General Framebuffer Patching Guide using Hackintool Please do not quote this guide in its entirety. Post a link instead. 15 Jan 2019: Intel FB-Patcher has been renamed to Hackintool. 19 Jan 2019: Guide overhauled. Please be aware of possible HDMI hot-plug issues. After boot you may have to...

www.tonymacx86.com

 

[iMhack]

Thanks,i solve it changing the second monitor with another 29" ultrawide with the DP port 1.4 now it works perfectly