Opencore Legacy Graphic Driver VS Parallels Desktop (Revert to Make it Work))

Parallels Desktop (PD) doesn't work when using Opencore Legacy (OCL). To be exact, if you have Graphics Patch installed, PD refuse to open. It keep Crashing and closes itself. I realized it after running PD just fine in the first minute after I finished update my old unsupported mac using OCL, and have PD just fine. But soon after I add driver to my Graphic Card (Start Root Patching Nvidia), PD refused to open.

However "Revert Root Patches" bring back PD to open (with some quirks). Now I'm running PD without Graphic Card support, with restriction in screen resolution; is awkwardly 4:3. And overall slow without the proper Graphic Driver.

Do you guys know how to run PD along with OCL Graphic Driver installed?

 

I had the same issue and disabling 3D acceleration got the Windows VM to boot.
I did that by first locating the VM's config.pvs file in the finder.
Then while parallel's was not running I edited:
<Enable3DAcceleration>1</Enable3DAcceleration>
->
<Enable3DAcceleration>0</Enable3DAcceleration>

 

Hello,
You can try to apply the following workaround to disable Metal API:
1. Make sure the virtual machine is not running.
2. Open its configuration as per https://kb.parallels.com/117287 > Hardware > Boot Order > Advanced Settings.
3. Paste the following system flag:

video.metal=0

4. Start your virtual machine again.

 

Thank you Mikhail for the suggestion. If that works it sounds like a better workaround than mine since unlike mine there would still be some level of 3D acceleration, perhaps the previous OpenGL based implementation and does not require tinkering with the VM config file.

 

Thank You Mikhail. It works fine!

 

THANK YOU Mikhail.
I've been looking for a solution since 2 days, on every forums and YouTube. You did it, such a genius thanks again

 

Thanks a million. This helped me a lot. My Win10 was still working, but browser windows would turn black. Now everything works smoothly! Best regards, Ernst

 

That works!!! Thank You so much!!

 

Ventura 13.3.1, after OCLP 0.6.4: I open the "Advanced" window after selecting Hardware in the menu bar then Boot Order in the sidebar of Windows Configuration. It's active for a split second then grays out. Anything I have missed that causes this? Thanks for any help at all.

 

Oh, forgot: MacBook Pro 10,1 early 2013, so metal