HP Zbook 14 dual monitors issue

[Tomas_P]

I have upgraded to Windows 10 x64 and I was using dual monitors.

One of the monitor has stopped working and when I chekced in the device manager, one of the 2 display adaptors has got an exclaimation mark beside it and says:

 

I tried to update the driver but it was usefull.

Can you give me a hand with this issue?

Best regards

[PtomGuru · Accepted solution]

Greetings!

Welcome to HP forum

You mentioned that it is Zbook 14  . So ,this is a the first gen Zbook 14. The reply is provided based on that

If your Zbook is newer like G2, G3, G4 . The solution would differ slightly but the main idea is the same .

1) The unknown device seems to be for the AMD graphics driver .Install this one

https://support.hp.com/in-en/drivers/selfservice/swdetails/hp-zbook-14-mobile-workstation/5403903/sw...

2) If that does not install  restart the unit ,at the HP screen , press F10 to enter BIOS .Go to Advanced > Device configuration > Makes sure Hybrid Graphics is checked

 Try reinstalling the AMD Graphics driver

https://support.hp.com/in-en/drivers/selfservice/swdetails/hp-zbook-14-mobile-workstation/5403903/sw...

3) If still the same , then go back to BIOS > Advanced > Boot options > Secure boot configuration .Make sure Secure boot is checked  and Boot Mode has UEFI native selected . If the settings are already in this manner

Once this is done , try installing the same  AMD driver

https://support.hp.com/in-en/drivers/selfservice/swdetails/hp-zbook-14-mobile-workstation/5403903/sw...

4) If that also does not work ,run a windows update .Windows update also updates hardware enabling drivers for Win 10

5) If still no change , reimage the HDD but make sure all the BIOS settings are set , as mentioned

[Tomas_P]

Thank you PtomGuru, you were right.

The computer have two graphic boards from two differenet brands, I instaled the Intel and the AMD drivers and the problem was solved.

Thank you!!