[hansolo]

Well, my opinion is that there is enough confusion for nonprofessional users about color spaces. Many assumes YCbCr 4:4:4=RGB which is a big mistake, so adding RGB 4:4:4 makes more confusion.
So for average Joe like me: RGB=computer monitor/PC mode, YCbCr: video format/TV. HDMI/Rec.709 and Rec.2020 supports both color spaces.

I was curious about RGB 4:4:4 and I saw this specs
So, a current professional board specifies pixel transfer formats, which doesn't mean anything for me but I doubt that for a professional these are useless specs.

Moving ontopic, it will be interesting to see how good will be these DP-HDMI 2.0 converters. As this conversion isn't a trivial task, I expect many bugs/headeaches at start, unlike DP-HDMI 1.4. Which is a pity, someone definitelly doesn't want interoperability and made it happens...

[Soli]

Yes, the notation for pixel format looks like kinda like the notation for chroma ratio, but it's not the same --> potentially more confusion (I guess it's a kinda nonstandard way of describing bit depth?. but nonetheless accepted)

The market for these adapters is probably not that big, except that hardware chroma subsampling could be useful for early adopters with 4k TVs. That is unless Intel kan follow Nvidia and enable 4:2:0 output from their current GPUs, and/or nextgen Kaby Lake.

Anyways we're a little f****** since HDMI 2.0 doesn't have the bandwidth for 10bit RGB 4k60. If you ask me, they should have gone with 27Gbs for HDMI 2.0 which would enable 12bit RGB 4K60, but I guess they want us to upgrade in the future ...

[noggin]

np. It's always fun to wrestle a bit

Quite - don't think we're being unpleasant to each other (though we may have gone waaaaay off topic)!

Maybe in a workflow where the you describe the capturing of light inside a videocamera and such, it can makes sense to use the expression 4:4:4 RGB just to emphasize full chroma res.

Yep - my life goes from camera to end user...

But the gist of my original post is that in the context of this DP->HDMI 2.0 adapter thread, it can be confusing to to refer to 4:4:4 RGB as it implies that 4:2:0 RGB is is possible for those TV's that only support 4:2:0 at 4k60. Even you, which we know as a very knowledgeable person, asked: " I wonder if it needs to be YCbCr 4:4:4 output rather than RGB? "

Yep - but in English that reads "YCbCr 4:4:4 to RGB 4:4:4 output" (you don't need to repeat the 4:4:4 - as it is implied :-))

[onizuka]

Anyone willing to help a poor soul upgrade their adapter? Neither my Broadwell NUC nor my Haswell MacAir (running Win10) recognize the intel graphics and refuse to update the firmware. Will of course pay for the shipping.

[_Spook_]

Anyone willing to help a poor soul upgrade their adapter? Neither my Broadwell NUC nor my Haswell MacAir (running Win10) recognize the intel graphics and refuse to update the firmware. Will of course pay for the shipping.

You could pop by a computerstore and try a laptop, it should do the trick. I did it on a Dell Inspiron XPS 12. It has Intel HD4400 GPU.

[crashnburn]

If this adaptor does do a full 3840x2160/60p Displayport to 4:2:0 3840x2160/60p HDMI 2.0 (via HDMI 1.4 bandwith) conversion then it will be very useful to many of us with TVs that only accept 4:2:0 at 2160/60p (and don't accept 4:2:2 or 4:4:4 at full 4K 60p) - like many Sony UHD sets.

4:2:0 2160/60p is an HDMI 2.0 resolution - it isn't in the HDMI 1.4a spec - but can be carried over HDMI 1.4 bandwidth connections. (AIUI some CE manufacturers lobbied for 4:2:0 to be added to HDMI 2.0 precisely to allow them to use HDMI 1.4a physical connections. Given that any conventional consumer video source of pre-recorded or live commercial content is likely to be 4:2:0 - as all consumer DVB, ATSC, DVD and Blu-ray content is - this wasn't a major compromise. However it is a limitation if you shoot your own 4:2:2 or 4:4:4 content, or want to use the display as a PC screen)

i agree with you said but 4k@60p is not enough, because bluray 4k will have HDR and 10bit videos, which only capable on HDMI2.0a. As of now i think the best bet is to wait to the new adapter with the new Parade PS8409 chip or wait for skylake Nuc with Alpine bridge chipset.

Which adapter is that? Is it out?

[crashnburn]

There are 3/4 different mDP 1.2 to HDMI 2.0 /2.0a adapters on Amazon, Club 3D and the original linked item.

Updated testing/ Reviews on them?

[eikum]

Intel NUC6i5SYK with OpenELEC 7.0 Fritsch build

Hi! I got the same tv and same box, do you get 4k 60hz/50hz? What build do you use now?

[_Spook_]

Intel NUC6i5SYK with OpenELEC 7.0 Fritsch build

Hi! I got the same tv and same box, do you get 4k 60hz/50hz? What build do you use now?

Hi. Yes I get 4k@60Hz with this adapter. The only issue I have is DTS-HD and TrueHD passthrough. Bitstreaming from Kodi works. I use these builds: http://forum.kodi.tv/showthread.php?tid=269815

[phillyman75]

Will these adapters paired with a Kaby Lake cpu/mobo let me view 4k/HDR content via Netflix? (My tv is a 4k/HDR capable Samsung ks8000)

[p750mmx]

Will these adapters paired with a Kaby Lake cpu/mobo let me view 4k/HDR content via Netflix? (My tv is a 4k/HDR capable Samsung ks8000)

With the one from the first link in the topic start, it gives me 4k Netflix when using the W10 app or Egde. No HDR though, but there still isn't a WDDM 2.2. driver out for Kaby Lake graphics, so not clear if HDR will come available after that when using the Uptab.

[infinity85]

Will these adapters paired with a Kaby Lake cpu/mobo let me view 4k/HDR content via Netflix? (My tv is a 4k/HDR capable Samsung ks8000)

Shouldn't your TV have a Netflix App included by samsung, which would be capable of Netflix in 4K and especially HDR?

[p750mmx]

Intel WDDM 2.2 drivers found, but no HDR for me at this time.