b4r0

I guess I'm giving it up... I've been trying and trying, there has to be an issue somewhere with 530

it was already like that

thank you I'm using Opencore, does it make any difference?

do you think going throug this tutorial might help fixing the issue?

one plugged monitor (HDMI): CSM enabled same issue, CSM disabled everything is fine two plugged monitors: (HDMI+DVI): CSM enabled or disabled doesn't make any difference, same issue

no luck the hdmi monitor keeps turning off/on and the dvi monitor never shows up to fix it I still need to unplug both cables and plug it again...

my EFI (too big to attach) https://drive.google.com/file/d/15vdjmeunzIylD9Gchwz6TipmAVW0cY57/view?usp=sharing

thank you for your help but unfortunatly changing from agdpmod=pikera to vt9696 and adding igfxonln=1 didn't help. no issue at all using just one monitor (hdmi) while if I boot with also a second screen (dvi) attached then both monitors keep turning on and off endlessy. any other hint by any chance?

I just wanted to thank you for your Olarila Monterey 12.1.raw and SkyLake desktop EFI, it was incredibly easy to install Monterey! Audio and video seems fine, I just need to troubleshot some issues with dual monitors: I need to unplug and re-plug the monitors to make them work togheter.