VS10 incorrect black levels when in SDR or HDR

Discussion in 'HDD Media player(RTD 1619DR)' started by mattmarsden, Jan 19, 2021.

  1. InNursery

    InNursery New Member

    Does the last firmware give us some improvement? (nothing was mentionned in the update log )
     
  2. Markswift2003

    Markswift2003 Moderator Beta test group Contributor

    Sorry - no change yet.
     
  3. tosh123

    tosh123 Member

    I use color range from 0-256 and colors of vivid - thats looking good on my deep color TV. I know, that 0-256 is only for monitors and not TV but that cured the missing blacks until a clean solution
     
    Whitfield and Markswift2003 like this.
  4. Markswift2003

    Markswift2003 Moderator Beta test group Contributor

    You my friend may have given us a clue as to what the problem is!

    In earlier firmware the quantisation range (0-255, 16-235) was completely screwed up. That got fixed, but I now wonder if they didn't fix it for the VS10 engine and only Realtek...

    By the way, if you use VS10, the HDR>SDR Gamma Settings (Bright, Vivid, Movie Mode) have no effect - they only apply to the Realtek engine.
     
    Whitfield likes this.
  5. tosh123

    tosh123 Member

    OK, thanx, i have switched a lot on the settings to get des VS10 running, because the pictures is a lot better than with the realtek engine (on my non-HDR-TV), good to know that that settings are ignored. But the "trick" with 0-256 works :)
     
  6. Whitfield

    Whitfield Active Member

    Hey, this could be revealing indeed. I would have never thought of this trick.
    Good for you both, @tosh123 and @Markswift2003 ! [thumbs up]
    Curious to Zidoo's response.
     
  7. Markswift2003

    Markswift2003 Moderator Beta test group Contributor

    I can't take any credit for this one, but @tosh123 is right - it makes a big difference, although it looks like black clip is a bit worse - I'll test this properly later.
     
  8. vddan

    vddan Member

    Good .... you gave me the idea to test the calibration with the 0-255 color space !!
    Well that's not bad at all, because with 16-235 test charts, I was able to calibrate the blacks and whites more easily !!
    So for the moment, while waiting for a correction on the 16-235, I stay with this calibration of which I am less obliged to lower the brightness (I have recovered about 8 notches of brightness!).
     
  9. vddan

    vddan Member

    In the end, after a day of testing in 0-255, I returned to my settings in 16-235 ........... which in the end suits me better!
    While waiting for a correction from Zidoo!
     
  10. Markswift2003

    Markswift2003 Moderator Beta test group Contributor

    Which HDR mode are you using?
     
  11. vddan

    vddan Member

    -Dolby Vision VS10 Engine.
    -Optimize EDID analysis in LLDV mode.
     
  12. Markswift2003

    Markswift2003 Moderator Beta test group Contributor

    Not sure what that means?

    And is it an SDR, HDR or DV display - just curious.
     
  13. vddan

    vddan Member

    Not easy to explain my installation because I go through my OPPO 203, which accepts SDR-HDR-DV and then depending on my broadcaster: 1) in 8K 2) false 4K non HDR projo, I make the settings accordingly!
    I just noticed that for the same settings of the OPPO, the image was more 'dynamic' when leaving the Zidoo in 16-235.
    It's just my visual appreciation!;)
     
    Markswift2003 likes this.

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