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    HDMI 2.0 Laptops?

    Discussion in 'Gaming (Software and Graphics Cards)' started by Phase, Jun 8, 2015.

  1. Phase

    Phase Notebook Evangelist

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    Since Skylake will support HDMI 2.0, does that mean we should have hdmi 2.0 in laptops? I've been wanting to hook up a laptop to a 4k tv, but the 30hz refresh is very off putting.

    Also a side question so I don't waste a whole new thread - Since dx12 should allow intel graphics and nvidia to combine their power and skylakes graphics are going to be another igpu boost, how long till you think the first game to actually use dx12 with both gpus together will come out?
     
  2. octiceps

    octiceps Nimrod

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    Clevo P77xZM/P75xZM already have HDMI 2.0 ports
     
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  3. Phase

    Phase Notebook Evangelist

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    CAN'T FIND WHERE IT SAYS IT ONLINE
     
  4. octiceps

    octiceps Nimrod

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    Chill dawg, release the caps lock. People in the owner's lounge have plugged 4K TVs into HDMI and run at 60Hz without issue. Maxwell 2 supports HDMI 2.0 and since the ZM has no Optimus, the HDMI port is connected directly to the dGPU.
     
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  5. ryzeki

    ryzeki Super Moderator Super Moderator

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    Are you sure about this? I mean I have an HDMI 1.4 ver on my GT80 but it still runs at 4K 60hz because the nvidia GPUs automatically use chromasubsampling. It works only partially, with issues in most games so far.
     
  6. octiceps

    octiceps Nimrod

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    Obviously I meant 4K 60Hz with normal colors
     
  7. Phase

    Phase Notebook Evangelist

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    i accidentally had caps lock on. it was 3:30 am and i was super tired. but i was pretty much asking if more laptops will have hdmi 2.0 since skylake will make it easy for laptop vendors
     
  8. alaskajoel

    alaskajoel Notebook Deity

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    4:4:4 @ 4k / 60hz on my P750zm (via Eurocom) works for me over HDMI. Confirmed via a Samsung 4k 4:4:4 compatible TV.

    Yes, as soon as Intel gpus support HDMI 2.0, it should be pretty straight forward.
     
  9. nipsen

    nipsen Notebook Ditty

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    Yeah, depends on the intel setup for the combo-solutions. Pretty sure hdmi 1.4 supports it, so you would have no issues with an hdmi port fitted on a dedicated nvidia card. But that it has to do with the bridge solution (possibly hardware, possibly rom setup, possibly both) on the intel mainboards that a lot of laptops don't get the high resolution options. Still.. saw one setup where the intel driver just locked out the modes, even if the hardware seemed to support it. And apparently this had something to do with the unified driver being designed for the highest resolution the hardware with the least capability had..

    I.e., another day, another computer manufacturer making an annoying limitation by design.
     
  10. alaskajoel

    alaskajoel Notebook Deity

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    HDMI 1.4 does not support true 4k @60hz if that's what you were referring to. Nvidia has managed to send a 60hz 4k signal over 1.4, but only with 4:2:0 chroma sub sampling. While it might not make a difference with some TVs that don't support 4:4:4 or some games, it's a deal breaker for any real computer / text use scenario.

    All of MSI and Alienware's offerings are still at 1.4, so the Clevo is your only option for true 60hz 4k AFAIK.
     
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  11. nipsen

    nipsen Notebook Ditty

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    *nods* but they're keeping the hardware standard, and updating the software. Or, the bandwidth for any 1.4 cable setup could theoretically support the 2.0 standard. But what seems to happen is that since you don't actually need all the bandwidth available to support 1.4, a lot of hardware manufacturers have settled for using hardware in the chain somewhere that only supports what is necessary to strictly implement 1.4 modes. Like Intel did with the framebuffer that's supposed to just store the next available frame: the intel graphics module or the nvidia card for example would be able to produce much higher resolution image at a higher framerate, but the framebuffer isn't big enough to hold the image. Or, in some cases, the software on the rom they're using won't allow it (presumably since the driver should be compatible with all the devices they have, etc).