HP Studio G5 + HP Thunderbolt Dock G2

[Andrujan]

Hello,

I would like to inform you, that my problem with thunderbolt > display port is SOLVED.

Don´t know exactly how, but generally what I did:

1.) Rolled back to old 1.04.05 BIOS- very very thanks to Soccer_dan for support

2.) turned off all BIOS power management (there was an article says, that thunderbolt controller could be switched off by power mangement )

3.) doing crazy things with all possible drivers - HP Image assistant seems to be good helper

4.) BIOS upgrade to latest one - 01.06.03

5.) Bingo! Works again.

Maybe only BIOS "reinstall" - point 1.) and 4. ) is the solution, who knows.

However very thanks to Soccer_dan, who posted old 01.04.05BIOS and told me about flashing back

[dsamek]

Hello,

   can you be more specific in step 3 ? What does it mean "doing crazy things with all possible drivers" ?

[Mad_Dev]

Hello,

At this point, Thunderbolt is still unavailable.

I don't want to spend 1 week to reinstall old bios version and doing crazy things on a more than 3k$ professionnal computer...

Seriously, it sucks badly.

Regards.

[dsamek]

Neither I. But I also made the call to HP support call centrum here in Slovak republic. The suggestion was: Made the clean windows 10 installation. When I asked if it helps, he said maybe...

[Mad_Dev]

HP have removed q71 firmware and advice to downgrade to q70 instead.

Thunderbold is now detected on my G5.

Thx.

[Mandyn]

Have you got a link to the Q70 firmware? 

[soccer_dan]

The HP Zbook Studuio G5 BIOS is version Q71: https://support.hp.com/us-en/drivers/selfservice/hp-zbook-studio-g5-mobile-workstation/18865653 and the latest version is 1.07.00

A different version of the BIOS, other than Q71, for the Studio (or Studio x360) G5 will not install and the BIOS update mechanism does several checks to make sure the BIOS is appropriate for the system in question

[lexios]

I believe I have found the bug! This is a BIOS bug on the HP Studio G5.

I noticed that although I had the same view as yours and no driver was detected (also, no thunderbolt controller), when I changed the following from Legacy to Native + Low Power Mode the Thunderbolt controller appeared in Device Manager!

I can now see the controller properly through the Secure Connect Utility.

Thunderbolt PCIe Hot plug Mode
*Legacy Mode
Native + Low Power Mode

Since the same setting appears on x360 and zBook G5 (not the Studio) and works fine in Legacy, I believe that this is a BIOS bug.

Let me know if this helps you so HP can take care of this.

Alex