I realize this thread has gone dark for a month or so, but I've followed it closely and tried most if not all the solutions (incl.
Justin Searls,
Niels Leenheer,
Natsuki Times etc.) without finding any success. In the hopes that someone else might be in, or have been in similar circumstances and gotten their ASD to work, here's my experience. I'm desperate for some good advice to get over the hump. Thanks in advance!
My system:
HP Z4 G4 (Intel Xeon W-2135 3.7 GHz, 64GB RAM)
GPU: Nvidia Quadro P4000 (4x display ports; no TB, no HDMI, no USB-C)
1. Display Port 1.4 to USB-C single cable method
Tried the Cable Matters DP > USB-C cable per a lot of recommendations, but got no response from the ASD
https://www.amazon.com/dp/B01J6DT070?psc=1&ref=ppx_yo2ov_dt_b_product_details
1.1 Tried two other Display Port 1.4 to USB-C cables just to be sure (all 8k and bidirectional).
Here and
here. No dice.
2. PCIe Expansion Card Method:
Couldn't get the
Gigabyte GC-Titan Ridge 2.0 Thunderbolt 3 card fast enough, so tried the
Asus Thunderbolt Ex4 instead. Install was easy enough; 10-1 pin USB internal cable connected to motherboard USB heade, but my HP motherboard's TB header had a different number of pins than the Asus' cable. Read that JSearls had a similar situation and just kept that cable disconnected. Connected the two external mini DP to DP ports from expansion card to GPU and then used the ASD included thunderbolt cable to the monitor. Installed driver. Nothing.
2.1 Thinking it may be a motherboard compatibility issue, I went straight to the source and got the
HP Thunderbolt 3 Card. This one only came with one internal cable for the TB header, and it went in just fine. Connected the two external DP to DP ports from expansion card to GPU etc. etc. Nothing.
3. Belkin Charge and Sync Cable
Per other suggestions, I order
this cable from VopMart in Hong Kong. Apparently it's only available in China, so I paid the ~$30 to express deliver it. Arrived today, plugged in the DP and two USB 3.0s to the pc and the USB-C to the ASD. Again, nothing.
"Nothing" = startup screen and light flickering
I should clarify that when I say "nothing" happened, that's not 100% true. With all the above options (except the cable matters cable which truly did nothing), I got the HP logo and "Protected by HP Sure Start" screen on startup. Then some rotating dots at the bottom of the screen (typical HP startup). That would disappear after a few seconds though and then I'd just get some mild, subtle flickering. But nothing else. I've used a different (pc) monitor with DP > DP cable just to be sure things work otherwise, and yes, everything's fine.
So, I'm stumped. I'm running up on my 14 day Apple return policy. Is it worth it to try the Gygabyte TB card? Is there reason to believe it will perform differently than the other two did? Is my GPU the problem? The PC itself? Anyone else have success with an HP and/or the Quadro 4000? Hearing so many other people get this to work, I'm sorta at a loss as to why my setup isn't working with any of the methods. Advice very welcome. Thx