GL702VS screen freezes when thunderbolt monitor is connected

[mrgcav]

GL702VS Laptop  and trying  to connect  an ASUS PA32UCDM 4k  monitor via Thunderbolt cable.

The laptop is TH3. I have two HDMI Monitors connected and they work fine.

When I connect a regular USB non video cable the port works well.

When I connect up the one monitor via a thunderbolt cable to the same laptop port the screen freezes. The monitor is detected but no video

TH drivers are up to date.

I do not what the problem is or how to diagnose it. 

Need help

MRGCAV@gmail.com

 According to all specifications I can connect up to 6 monitors.

[fadiss84]

I have the same problem with hdmi everything is working well with display port type c i get stutter in games gpu become max 80% usage and some delay on opening files in windows there is a temp solution is to do restart and remove fast boot its works fine until u unplug dp cable or turn off the external monitor im sure there is a problem with thunderport now %100

[mrgcav]

Found this old post but most of the links do not work.  But it has some good points.

https://rog-forum.asus.com/t5/rog-strix-series/gl702vm-thunderbolt-not-working/td-p/704894