Hi, I have installed OS X on my laptop with NVIDIA Quadro NVS 4200M (same chipset as GT 520M). It works fine on DVI with QE/CI, but the internal display doesn't work until I click "Detect Displays" in Settings.
Once clicked, the display works but there's some serious color banding issues on that display with gradients and I can't lower the brightness from 100%.
I have OS X 10.11 El Capitan booted with Clover EFI. I have not installed the NVIDIA Web Drivers. I have disabled Optimus in the BIOS so only the NVIDIA card is present.
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