Need Help with Samsung UHDTV and Apple TV 4k

Discussion in 'Apple TV and Home Theater' started by dysert, Sep 23, 2017.

  1. dysert macrumors regular

    Joined:
    Sep 4, 2006
    #1
    I have a Samsung UN65JU7100F 65" whose specs say it will support 3840 2160. I have the Belkin High Speed HDMI 4k cable the Apple store sold me as compatible plugged into HDMI port 2/DVI input. When I try the 4k SDR modes in 60 and 50hz the TV screen goes blank so I have to do the reset on the Apple TV by hitting the Menu and Vol Down button for 5 secs. Anyone have any suggestions? Thanks.
     
  2. qba-system macrumors newbie

    Joined:
    Sep 23, 2017
    #2
    I had a somewhat similar experience. I have JS9000 model that is connected to my Marantz SR5010 receiver.
    When I plugged the new ATV 4K instead of the old one all I was getting was a black screen and a “no HDMI connected” message, changed the cables and the same thing. It only works on the cable/sat HDMI input on the receiver, checked two other inputs on my receiver and get the same no HDMI error (other devices work). Connected straight to the TV and it worked.

    TV and receiver is connected using ARC. All HDMI cables are 4K compatible.
     
  3. benji888 macrumors 68000

    benji888

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    #3
    Do you have HDMI Color set to ON?
     
  4. dysert thread starter macrumors regular

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    #4
    I have not seen that option so I have not. The ATV works fine in 1080p mode 60hz. I have now tried all of the manually selectable 4k options and none seem to work. TV is running latest Samsung software for this model.
     
  5. benji888 macrumors 68000

    benji888

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    #5
    well, what I found when I downloaded and glanced at the user manual for your tv is that, with HDMI Color set to off you get 4:2:0 color, with HDMI Color set to on, you get 4:2:2 color, which is needed for HDR. Maybe check your user manual or download it yourself to find out how to change this setting. I have read others say their TV needs to be set for 4:2:2 for HDR to work.

    Screen Shot 2017-09-24 at 12.44.06 PM.png

    You also need to be sure to have an HDMI premium certified cable, sometimes people's issues are solved with a new certified cable: (Apple recommends "DV certified", but, any with the HDMI Premium certification on it will do: https://www.hdmi.org/manufacturer/premiumcable/faq.aspx)
     
  6. dysert thread starter macrumors regular

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    #6
    Th
    Thank you for taking the time to give a thoughtful response. I did find the color selection for the input I am using, in this case, HDMI2 and you were right it was off. I turned on and rebooted the TV and then tried to manually select 4K on the ATV. Still no picture unfortuntley. I tried various power on sequences to no avail. The cable I am using is the one the Apple store sold me and said it would work. I bought my son the same cable and an ATV. His is working with his Samsung TV we just bought him at Costco. I have to believe because of that the cable is not the issue.
    --- Post Merged, Sep 24, 2017 ---
    Finally got the TV to accept 4K 50 hz SDR. The screeen kept flickering on and off for a while but the TV and ATV finally sync’d. While the TV was flickering I held the ATV remote Menu and Volume - button at the same time and the picture finally appeared and stabilized. I think turning the color on as was suggested above worked. I also got a Check cable option, did so and it passed. Thanks for all the suggestions.
     
  7. DarkSorrow82 macrumors regular

    DarkSorrow82

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    #7
    A lot of the Samsung TVs don't work unless the HDMI is in HDMI 1. Try that. My Samsung Curved uHD TV supports HDR color in all 3 HDMI ports however. I just turned them on. I'm also using 4:2:2 color modes.
     
  8. dysert thread starter macrumors regular

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    Sep 4, 2006
    #8
    I am beginning to suspect the cable Apple sold me at the store. The cable is no longer on the Apple site. I am going to take it back and get the ultra high speed version.
     
  9. DarkSorrow82 macrumors regular

    DarkSorrow82

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    #9
  10. Packers1958 macrumors 65816

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    #10
  11. DarkSorrow82 macrumors regular

    DarkSorrow82

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    #11
    I wouldn't skimp on a 4K cable. Cheap is not always the best. Everyone wants to save a buck when they buy expensive equipment. If you can afford expensive equipment why not get a good cable to go with it!
     
  12. Packers1958 macrumors 65816

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    #12
    Thats what they want you to believe. With HDMI cables, they either work or they don't. People spending $100 on a cable are suckers. I have 3 UHD devices connected to my 2 UHD tv's. Both can do HDR. The Monoprice cables work perfectly without issues with HDR. If you don't get a Premium certified cable with the logo, you may not get HDR to work, even at $100. There is a reason why the certified logo was created by HDMI.org. They must be tested to pass 4K HDR at 60hz, which is the max that current UHD HDMI standards allow. IOW it must pass through at 18 Gbps. This prevents people from getting screwed by companies that won't certify their cables.
     
  13. loekf macrumors 6502a

    loekf

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    #13
  14. DarkSorrow82 macrumors regular

    DarkSorrow82

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    #14
    It's 9 feet. I use that one for my AppleTV and 3 of the GE 4K ones for my XboxOne S, U-Verse Box, and Bedroom Curved 4K TV / BlueRay player.
     
  15. marklemac macrumors regular

    marklemac

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    Southampton, UK.
    #15
    I've got a 55" Samsung 4k (nano crystal) and plugged my ATV 4k in yesterday and the screen kept going black as soon as I turned it on. The setup procedure for the ATV was a right pain. Once done it was still going black.

    In the end I put the ATV into HDMI socket 1 on the Samsung, enabled the HDR On in the samsung menu, rebooted both devices and left it for a while and watched some normal tv. Came back about 30 mins later and it's all perfect.

    FYI, I'm using a cheap £5 3 metre HDMI cable, same one I used for my previous ATV's.

    No idea really what was going on but not the best first initial setup process for an Apple device I've had for a while.
     
  16. DarkSorrow82 macrumors regular

    DarkSorrow82

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    #16
    Odd. Mine worked right out of the box when I plugged it in. I have the Samsung 105" Class 105S9 Curved 4K UHD Smart TV. I did have all my HDMI ports set up as HDMI UHD Color and picture set as Game Mode though as I play a lot of XboxOne. I heard HDR+ didn't look as good with 4K/HDR as Game mode does.
     
  17. marklemac, Sep 24, 2017
    Last edited: Sep 25, 2017

    marklemac macrumors regular

    marklemac

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    #17
    It was very odd, just glad it's all working now. :) :)

    Netflix last last did look pretty amazing. I've never been happy with the netflix app on the samsung, so slow and clunky.
     
  18. dysert thread starter macrumors regular

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    Sep 4, 2006
    #18
    2D1FD60A-002B-4E0A-BB09-30CA067D93CF.jpeg I my case it turned out to be the cable. I went to Walmart as someone suggested and bought the GE cable, 10’ for $15.00. It does have the certified label on it. Plugged it in and presto, 4K at 60hz SDR and a gorgeous picture on my TV. The 49.99 Belkin cable is going back to the Apple store for a refund.

    I bought this one in 10’
    https://www.walmart.com/ip/General-Electric-Ge-6-Ultra-Pro-Hdmi/121812038

    Thanks again to all who helped.
     
  19. shahcha macrumors newbie

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    May 19, 2019
    #19
    Hello I have Samsung UN65F9000 TV with the external one connect box I think I purchased it back in 2013 or 2014. I have Apple TV 4K that I got it yesterday I have been trying to connect it to this TV and select 4K/60 SDR on Apple TV then TV blinks and comes back to 1080p/60 SDR I try various 4k/30 4k/50 but it comes back to 1080p says not compatible how can that be since this TV is capable of 4K60. I am worried when I purchased did it say 4K ready or 4K TV
    I see an option of some Evolution Kit install what is that if anyone knows
     
  20. shamelin73 macrumors member

    shamelin73

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    Jan 28, 2019
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    East Texas
    #20
    Something I did not see mentioned in the few other replies is that some of these newer HDMI cables are directional. I have 2 the are directional cables and have to be placed input and output.

    I have a MU8000 Samsung 55" and had some issue like you until I figured out that the cables were directional.
     

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19 September 23, 2017