ZBook 15 can not support external screen via Displayport

[griea]

Hi,

I just got ZBook 15 Workstation with 64 bit Windows 7. The external screen (HP Z23i) only works via VGA connection, but it doesn't work via Displayport.  The external monitor shows "no signal".

Does anybody know the issue and have solution?

Thanks a lot.

J 

[alverdal]

Hi, I have the same problem. Tried to connect an external display directly (no dock) and I get no output from displayport.

The screen says "no signal".

Hope we'll find an answer to this.

[whim]

I have the same issue. VGA works, but DisplayPort gives "No Signal" on monitor (EliteDisplay E231).

Monitor and cables are verified with a different PC.

Also, I get "No Signal" when I use a DVI cable.

Any movement on this one?

[whim]

Replying to myself... The problem was solved when I installed "HP Support Assistant" and applied the updates it recommended. Cheerz!

[whim]

The problem was solved when I installed "HP Support Assistant" and applied the updates it recommended. Cheerz!

[Congson84]

I issue same that ! I try :

- Connect to monitor external by cable Display Port.

- Connect to monitor ( TV sony 4K) by converter DP to HDMI ( converter box Ugreen) .

- Install Hp support Assistant and do anything ( update bios, update Nvidia driver)

My laptop only deviced name monitor and TV on Nvidia software but no signal on Screen. At monitor is error :" Out of range".

I thing my Port DP error out put video signal. Can someone help me test it , please ?

HP Zbook 15

CPU : core I7 4800

Ram : 16 GB

Graphic card: Quardo K2100.

[007ZP]

Solution for Non responsive DP output for Non-HP displays.
The DisplayPort is faulty when using Non-HP displays and I had a terrible experience with HP-Support that left me frustrated as they proposed no solution at all and claimed that they are not responible for any non-HP equipment. I investigated it carefully and here is the solution: The HP Zbook has a "Thunderbolt" output that can be connected via a cable that has a mDP (Mini DisplayPort) connector (to PC side) and DP (DisplayPort) to display side.
That way it is working!