Question: I have a 
**Philips BDM4037UW 4K screen** 
connected to my 
**Asus ROG GL552VW**
via 
**USB Type-C**
using a 
**Club3d USB Type-C -> DisplayPort Adapter**

However it does not work. The screen gives me a *"No input detected"* and my laptop says *"Try improving the USB connection. DisplayPort connection might not work. Try a different cable."*

Does this mean I can forget about displaying my laptop on a 4K screen @60hz?

How can I find out if my laptop supports the DisplayPort alt mode at all? Could it be the cable is not good?

Might it work with a USB Type-C -> HDMI 2.0 adapter?

Any other recommendations?

Answer: 
It seems that ASUS ROG GL552VW does not support sending video over USB3.1 because the display port function is either not implemented or disabled.

Check this forum thread:

<https://rog.asus.com/forum/showthread.php?82155-GL552VW-USB-TYPE-C-Question-and-Connecting-Additional-Monitor>

Sorry for the bad news.
We have a few PCs in our office with the same problem. I found a workaround. Output from standard USB 3.0 to HDMI using an adapter. 

You can also use a USB 3.1 Type C to USB 3.0 hub, too, and then plug in a USB 3.0 to HDMI adapter.

Under Windows, we found the J5Create adapters to work well, and under Linux we had to got for the slightly more expensive Unitek models.