2019-07-16, 17:36
(2019-07-16, 15:31)p750mmx Wrote: Excuse for the delay
The DP = type++, as I wrote in my reaction regarding the HP TFF PC. I used "the other one" adapter, the one that's not clear on being active or not. But as I wrote before, that doesn't matter if the connection is to an HDMI 1.4 port, it only matters when connected to an HDMI2.x port and one wants to get 2160p/60Hz resolution as an output.
Yes, you said that in before, but i am still not sure i understand what you mean. Is it this::
If an adapter is passive, then it triggers the DP++ port to operate in HDMI mode. I assume the HDMI Mode of a DP1.2++ (dualmode) port on a PC is HDMI1.4a, so with a passive adapter you could not drive any HDMI2.0 mode even if connected to a HDMI2.0 display. Specifically 4k@50, 4k@60.
That one i agree on, but to me this does not mean "active vs. passive does not make a difference when connecting to a HDMI1.4a 3D display", because if i can not get 3D through an active but only via a passive adapter, then thats a difference to me.
(2019-07-16, 15:31)p750mmx Wrote: To test if the DP++ port does anything on the Hardware Based 3D option in Kodi, I connected another Kaby Lake system (with Pentium G4560), to my 3D test monitor that has a "normal" DP1.2 port. I used the same doubtful active adapter with this and Hardware Based is still an option and MVC media is still playing fine (and shows Hardware Based under info when playing).
So no difference between DP1.2 and DP1.2++ when connected to a HDMI 1.4 port.
How do you know that Kaby Lake system has only a DP 1.2 port and not a DP 1.2++ port ? Just by the icon printed on the port not shoping ++ ? Alas, i don't know any software side tool to tell me.
What results do you get when using the "known active" adapter on any of your PCS DP ports ?
This doubtfull active adapter from CSL is highly silly. The amazon page says it could either have a PS8402A chip, which is a dual-port only chip (level shifter), or a PS171HDM, which looks like an active, DP (single-mode) port capable chip. Given how i also had another guaranteed PS171 adapter and it producted picture (just not 3D), i can only deduce that the CSL adapter i bought from amazon last week uses the PS8402A because it does not give me any picture. But of course i have no idea what your CSL adapter uses.
