Hello,
I installed macOS Big Sur 11.6.8 on a Lenovo Thinkcentre M93p Tiny (about the same physical size as a Mac Mini) having
its stock Core i5-4570T CPU
only Intel HD 4600 integrated graphics
in Firmware settings, minimum VRAM is set to 64MB and limit is set to Maximum. Also, VT-d is disabled.
and 3 display outputs : VGA, HDMI and DisplayPort
For macOS installation, I used the Haswell Notebook (the Desktop variant crashes) EFI folder from this site for my installer USB key, then added the -igfxvesa boot-arg to its OpenCore config.plist . After installation, I was able to make it bootable without the USB key.
However, graphics acceleration is disabled, making any software having Chromium-based code, such Google Chrome, Microsoft Edge and Visual Studio Code, unusable.
On VGA, I am limited to a 1280x1024 resolution, and removing the -igfxvesa option changes nothing (same limitations as before, but no worsening)
About This Mac reports Intel HD 4600 Graphics with only 5 MB of VRAM
I read on other forums you must not use VGA output for this hardware on macOS. So I stopped using it.
On HDMI, I can go up to 1920x1200 (yes, that's an older 27" 16:10 monitor), but still no acceleration
About This Mac reports Intel HD 4600 Graphics with 8 MB of VRAM
The above mentionned apps are still unusable.
I have not tried DisplayPort yet as I must get a DisplayPort cable.
My questions are :
Can I get graphics acceleration with the HDMI output?
How do I enable graphics acceleration? No problem with purchasing a DisplayPort cable.
Thank you in advance.