JKC

Thanks Hervé for your detailed reply. I was wondering why I had output on my VGA and now I know why, thanks to your explanations. I think the first option is more for hackintosh builds but as I use windows and linux beside mac, the second option suits best for me. I've got a DVI-I passive adapter but I couldn't check it as my mainboard have a DVI-D port. I think I need to buy an active DVI to VGA adapter. BTW, Is there any fix for "slow copy" problem on my BigSur? I found that I have the same problem with Catalina but I didn't notice any problem when I was using High Sierra.

Hi there, I've installed Mac Big Sur on my desktop PC. My graphics was recognized as Intel HD 4000 5MB so I fixed VRAM and it changed to 1536MB. Before I fix VRAM I had output simultaneously on both VGA and HDMI ports of my mainboard (both connected to one monitor). But after fixing VRAM, VGA output keeps on showing verbose and freezes just before Mac's loading screen and it continues only on HDMI output. I can see a distorted verbose screen on my VGA output when restarting too. (There's also another problem seemingly shown up after fixing VRAM. Copying files is super slow, and sometimes copying a ~12MB folder takes up tp 50 mins.) My Primary graphics is set to iGPU (64MB). I use Open Core 0.9.4. I've tested changing connectors using Hackin tool but no luck. As my monitor has 2 inputs (HDMI and VGA), I need to connect HDMI to my GTX 950 and VGA to intel GPU on my mainboard. What can I do to make my Mac continue using VGA? Specs: Asus P8Z77-V Intel i7 3770k GTX 950 16 GB of RAM