Hello,
I'm interested in making a one-off PDMI to HDMI cable for the Dell Streak (If we are picking nits, it's going to be a PDMI to DisplayPort to HDMI cable--see below). I refuse to pay $50 for some copper, a piece of shiny molded plastic and a few resistors and caps. However I
do want to display my Streak 5's output on my TV, if only to view photos and videos with the inbuilt video player. (I'm crossing my fingers for NetFlix, but I'm not holding my breath.)
I'm assuming the following: - PDMI has a bunch of stuff (USB 2.0, USB 3.0, analog, audio, DisplayPort)
- DisplayPort is a subset of PDMI (well, kind of; PDMI only uses two of its four 'lanes' and the auxiliary lane)
- DisplayPort isn't officially HDMI-compatible but
can detect VGA, DVI or HDMI and output the appropriate signal - maybe through the 'Hot Plug Detect' pin?
- The Dell Dock has no active circuitry; the DisplayPort-to-HDMI conversion is done on the Streak itself
- The Dell Dock with HDMI out has some pins grounded (
which pins?) that trigger the "Wanna display HDMI?" software controls on the Dell Streak's firmware
Anyway, my plan is to buy a $5 PDMI-to-USB cable and a DisplayPort-to-HDMI cable. Based on the specs and pinouts for PDMI, DisplayPort and HDMI, I will attempt to hook the thing up to my HDMI TV. I am also going to break out and ground random grounds on the PDMI cable together (as John suggests above) to see if I can get the Streak to respond appropriately.
I'll report back here soon. Wish me luck! (And if anyone who owns a dock wants to put an ohmmeter to any of the ground pins on the thing--that'd be 2, 7, 13, 16, 18, 25, 27 and 29--I'd love to hear which ones are fused together

)
PDMI spec:
http://en.wikipedia.org/wiki/PDMI DisplayPort spec:
http://en.wikipedia.org/wiki/DisplayPort HDMI spec:
http://en.wikipedia.org/wiki/HDMI DP-to-HDMI adapter ($3-5 w/shipping):
http://shop.ebay.com/i.html?_nkw=displayport%20hdmi Streak USB cable ($3.50 w/shipping):
http://shop.ebay.com/i.html?_nkw=streak+usb+cable