[direx]

 I don't seem to be the one misinformed: 

What do you mean? This block diagram shows Apollo Lake.

Gemini Lake is not a chip of the 7th generation as Kaby Lake. The graphic part in this cut, starting with Intel InTru 3D. Cut and other parts.

Strange. According to the Intel Website the Pentium J5005 has a Intel® UHD Graphics 605. And according to this datasheet this GPU is of generation Kaby Lake (Gen 9.5), such as all UHD Graphics 6xx.

I created a theme with a request for Intel information about HDR https://communities.intel.com/thread/121993

OK, this will be interesting. Thank you.

And add screen block-shem Gemini Lake:

The Apollo and Gemini have the same graphical components Gen9. New in the chart only the replacement of the HDMI1.4b on HDMI2.0
In all other respects identical

For a very long time in this thread this is an actual fact (that's why I decided to step back into the discussion). And the block diagram actually does not look good in terms of HDR support. What I still don't understand is why the model number (UHD Graphics 605) of the GPU suggests that we're dealing with a Gen 9.5 GPU. Strange. And there are sites which mentioned 10 bit VP9 support for Gemini Lake, which also sounds like Gen9.5 (kaby Lake) and not Gen9 (Skylake).

I just checked the current Linux situation with Gemini Lake and found this. It is the current HDR playground for Intel Linux graphics and the interesting thing are these lines in drivers/gpu/drm/i915/intel_hdmi.c:

c:


if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))

intel_hdmi_set_drm_infoframe(encoder, crtc_state, conn_state);

}

What they do there is setting the HDR infoframe for Gen10 or Geminilake. Doesn't that look promising? This is another pro for HDR support, while the block diagram which @DenisDA posted is another con.