My Lenovo 4K monitor does not work on my new MacBook Pro 2017
I just bought a new MacBook Pro,
running 4k monitor on hdmi cable to usb-c adapter from apple.
But I can't get a proper resolution on it.
I can either get, no scaled 4k resolution, which makes everything super small.
Or 1920x1080 with no HIDPI.
It worked fine on my old Mac, the old one, was a 2015 Macbook pro with El Capitan on it.
Anyone know how to get HIDPI on my monitor?
MacBook Pro TouchBar and Touch ID, macOS Sierra (10.12.4)

