【how to】fix the 2k/4K resolution for hdmi

sudo perl -pi -e 's|\xB8\x01\x00\x00\x00\xF6\xC1\x01\x0F\x85|\x33\xC0\x90\x90\x90\x90\x90\x90\x90\xE9|g' /System/Library/Frameworks/CoreDisplay.framework/Versions/Current/CoreDisplay

sudo codesign -f -s - /System/Library/Frameworks/CoreDisplay.framework/Versions/Current/CoreDisplay