Dark image on SDR TV

Discussion in 'ZIDOO Z9S' started by Valkyre57, Nov 24, 2020.

  1. Valkyre57

    Valkyre57 New Member

    hello dears
    I have Zidoo Z9S with firmware 2.3.35 connected to Hisense SDR TV. I am troubling with DARK image! tried a lot, change HDMI cable, reset zidoo, reset tv, i set hdmi limit on zidoo and tried different configurations with 8,10,12 bit outputs and color space. I set on my tv everything on standard, no any image enhancer or noise reducer... I am watching UHD Remux (H265) and FHD Remux (H264) too.
    I do not know what to do anymore.
     
  2. McBluna

    McBluna Active Member

    Do you've another TV to test?
     
  3. Valkyre57

    Valkyre57 New Member

    yes but it is FHD SDR too.
     
  4. McBluna

    McBluna Active Member

    Is the picture quality of your Zidoo the same on both TVs?
     
  5. Valkyre57

    Valkyre57 New Member

    i will try it tomorrow on second tv.

    i set brightness on 40 in zidoo settings to reduce darkness but i think it is not solution.
    mabye it is gamma issue when DHR converting to SDR
     
  6. Valkyre57

    Valkyre57 New Member

    the FHD SDR tv everything on standard. shot from three movie resident evil, jason bourne , show girls. image is dark there too
     

    Attached Files:

  7. McBluna

    McBluna Active Member

    This is how it looks like on my TV (4K, HDR) with Zidoo Z9S

    I've tried the different settings for HDR.
    Screenshot_20201125-111752.png

    SDR Mapping HDR
    20201125_095812.jpg

    SDR Rec.709
    20201125_111328.jpg

    SDR Rec.2020
    20201125_111350.jpg

    Auto
    20201125_111413.jpg
     
  8. McBluna

    McBluna Active Member

    Did you try the different settings?
     
  9. Valkyre57

    Valkyre57 New Member

    thanks a lot for pics. i found solution, i have find my tv's EU last firmware and in Manu appears HDMI Enhanced mode....in zidoo settings i set 8 bit depth, hdmi range 16-235 and REC2020..... image is bright and quality is superb but color tone little bit washed out.
     
  10. McBluna

    McBluna Active Member

    The HDR -> SDR mapping of Zidoo is not the best
     
  11. McBluna

    McBluna Active Member

    but I'm glad I could helped
     
  12. Valkyre57

    Valkyre57 New Member

    thanks a lot. i think best way is to buy HDR TV :D
     
  13. d11342

    d11342 New Member

    I have same problem. I try all settings. But hdr films on sdr tv to dark. Will this be fixed in the next firmware versions?I bought the zidoo z9s only for converting hdr to sdr. but it is this function that works terribly. both on the TV and on the projector
     
  14. Valkyre57

    Valkyre57 New Member

    I have firmware v2.3.35 on my Z9s .... Try to set in TV settings HDMI to Enhanced then in Zidoo settings set 8 bit color and Rec.2020 it would be work but colors will be little washed out.
     
  15. d11342

    d11342 New Member

    my tv and my projector dont have HDMI Enchanced mode((( it is old models. Why Zidoo will not make the Converter as madvr for example,I think many would say thank them))
     
  16. Valkyre57

    Valkyre57 New Member

    no any Gamma adjustment on TV or Projector?
    in my case I decide to by new HDR TV , it is best way to solve issue .
     
  17. d11342

    d11342 New Member

    'm afraid so, the projector only has switching between rgb and YCbCr
     

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