I plugged my dell xps 13 developer into a projector today and the result was something like 8 bits of color, you can see it here: http://imgur.com/a/zrwwK . I have the same problem if I connect it to my 46" TV. However, if I put down the resolution to 1650x1050 it works without a problem.

It also works in extended mode when I connect it to my 24" external dell display. Has anyone experienced anything like this?

Dell XPS 13 Developer Kaby Lake Ubuntu 16.04 Kernel 4.4.0-59-generic