I have installed macOS 10.12.6 VM but no matter what display or hardware setting I apply, the display looks very bad and blurry. The same thing happens if I installed any Linux system. Any ideas? I am using Parallels Desktop 12 on Macbook Pro 15" 2015 model.
I've solved it on mac VM. The Parallels tools did not install automatically so I installed from Actions menu and now it looks ok. However, I still have problem with Ubuntu. The resolution is grainy. If I choose retina, everything appears very small.