DP over USB-C Connection --

[TroyTakesPhotos]

Hey, all!  I have a Dell Inspiron 5420 laptop, and an ASUS Zen Screen.  Both have USB-C to DP logos on the USB-C ports.  But, when I try to connect them, I get no response from the laptop and this message from the Zen Screen.  

 

"This monitor supports video by "DP Alt Mode", please check with your NB/PC manufactures if their USB-C port has DP signal output."

 

Since the USB-C port has a DP logo, that should 100% totally work, right?  Additionally, the laptop specs specifically say it offers DisplayPort through the USB-C.  The Zen Screen has no other connections, and I can't use the buttons on the screen (except for power).   "Detect other display" doesn't work either.

 

What am I missing here?

[AAVVIronAlex]

The cable might not be meeting the spec, remember when Linus said that they were working on cables, they are working on cables to fix this issue.

[TroyTakesPhotos]

Just now, AAVVIronAlex said:

The cable might not be meeting the spec, remember when Linus said that they were working on cables, they are working on cables to fix this issue.

It's a brand new USB-C to USB-C cable (actually, the one that came with my iPhone), so I had thought it would be compatible.  Do I need a specialty USB-C cable instead?

[Blasty Blosty]

14 minutes ago, TroyTakesPhotos said:

actually, the one that came with my iPhone

This cable is only USB 2, you need a higher speed cable

[AAVVIronAlex]

1 minute ago, Blasty Blosty said:

This cable is only USB 2, you need a higher speed cable

Yep, that fully explains it.

[whispous]

The poor USB capability messaging strikes again!

 

No enforced standard labelling annoys us all

[TroyTakesPhotos]

Hooray, poor USB capability messaging!  I'll grab one and see what happens next.

[TroyTakesPhotos]

That did the trick.  Thanks to y'all for the help!