HP EliteBook 860 G11 type-c not sending video to external monitor

[Blakec123]

So I have to make an edit and let everyone know that my 89$ IFI iSilencer Max noise cleaner and / or ferrite beads did NOT work.  Same identical behavior.  A 5' cable works with my G6 Elitebook 860.  The 3' very expensive cable + noise cleaner does not work when the external power brick is connected to my KVM (which is a passthrough to charge my G11 with a single USB C cable).  However Video works with the brick connected to the second USB C port (a poor workaround as I have to plug in two USB C cables instead of 1). 

I work for Texas Instruments as an applications engineer for the Digital product groups and we are a big supplier of USB type C PD chips in our Analog group.  My analog engineer in my office who covers the PD product line and has extensive experience with engineers designing with our parts is pretty sure that the USB PD stack is being misinterpreted by the Laptop.  So we are back to one of two fixes:

1) BIOS upgrade (solvable - but we have to wait on HP)

2) Hardware upgrade (terminal problem with no viable fix)  

Fingers crossed that HP rolls out a fix to the BIOS or at least lets us know that it is a hardware problem (I would be pleasantly surprised if they owned up to this problem).

Blake

[Vinx_Carbone]

Thanks for the update,

as far as I can see, we've not much else to do if not waiting.

Unfortunatelly HP is wierdly SILENT, no feedback, no contact anymore, no nothing. 

The problem seems to be at driver level, so I hope a BIOS UPDATE might solve, as I've as well tried several docking stations and adapters with/without filters but not solving the issue.

It's a bit pity... however I've to say that the experience with Windows 11 is TERRIBLE as well, so many issues I've never experienced with Windows 10 (especially with video and CPU consumption...). Mah.