Fixing WiiU's limited RGB via IOSU exploit. (360, X1, PS3, Vita TV, PS4 don't have this problem).

Discussion in 'Wii U - Hacking & Backup Loaders' started by Soul_Alchemist, Oct 29, 2016.

  1. Soul_Alchemist
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    Soul_Alchemist Advanced Member

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    WiiU only outputs Limited RGB by default. With no option whatsoever to change it.

    Would it be possible to fix this horrible oversight now that developers have access to all the system files thanks to the IOSU exploit?

    Here's a picture showing why it's so bad:

    [​IMG]

    It kills the image quality. Blacks get turned into grays, whites get subdued, and the entire range of colors gets a gray filter. This problems affects everyone with a Full RGB panel. Obviously, if your display/TV only supports Limited RGB then you won't actually be affected by this.

    Here's a comparison between Full RGB and Limited RGB using Uncharted 4 as an example:



    .
     
  2. Conn0r

    Conn0r GBAtemp Fan

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    I ain't no professional but I don't think we can just flip a few bits and have the image quality change.
     
  3. Boogieboo6

    Boogieboo6 @realDonaldTrump

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    I'm not an expert either, but maybe it could work! Like changing a TV screen to Warm vs Cool colors.
     
  4. RemixDeluxe

    RemixDeluxe GBAtemp Psycho!

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    Why was it gimped in the first place? Would it have been too resource heavy on the Wii U's specs to go full in the first place?
     
  5. hippy dave

    hippy dave BBMB

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    Do you have a good link for more info on the difference between full and limited?
     
  6. Glix

    Glix GBAtemp Regular

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    http://referencehometheater.com/2014/commentary/rgb-full-vs-limited/

    It all depends on what reference point you are calibrated around and what your panel can handle, on PC you are likely to be on Full range, and on TV ideally you should be limited although I like to hook up my pc, so calibrate for full anyway.
     
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  7. Kohmei

    Kohmei GBAtemp Advanced Fan

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    My TV has an "HDMI black level" setting that compensates for this. Yours might have a similar option that's called something else. Regardless I doubt this will be correctable with IOSU exploit
     
    Last edited by Kohmei, Oct 29, 2016
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  8. veggav

    veggav GBAtemp Regular

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    There's no reason to work this out.

    Any monitor or tv is able to switch from 0-255 or 16-245.
    You won't be loosing details.
    When both, source and tv are set to the same levels the BTB (blacker than black) and WTW (whiter than white) are not to be seen and used only as a reference level for calibration.
    Don't stress over it.
     
  9. piratesephiroth

    piratesephiroth I wish I could read

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    If I force my monitor I use with the Wii U to full RGB the colors get pretty shitty.

    The best option is to let the console detect the best setting for the TV/monitor.
     
    Last edited by piratesephiroth, Oct 29, 2016
  10. Gericom

    Gericom GBAtemp Advanced Fan

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    This actually is a problem indeed. I am mostly using my wii u on a Sony tv that only supports limited range, so that works fine, but I occasionally use it with an Asus monitor that only supports full range, and that looks very bad indeed. Wouldn't it simply be possible to configure the chip that provides the hdmi output to output full range? It would be rather strange if it wouldn't have such an option.
     
  11. Haymose

    Haymose GBAtemp Fan

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    Ya but if you're switching between monitors used for different devices often, this gets annoying. So I would say there is a reason just maybe not that important to everyone.
     
  12. shilien

    shilien Newbie

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    I have the same problem. And yes, it's very annoying because image quality it's incredibly bad.

    Will be amazing if someone manage to fix it, but i'm not optimistic.
     
  13. piratesephiroth

    piratesephiroth I wish I could read

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    Well, I guess the Wii U is made to be used with TVs, and they always support limited RGB.
    If you want to use it on a monitor, get a gaming one then. Mine works fine.
     
  14. Osakasan

    Osakasan GBAtemp Advanced Fan

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    I'm using my U on a monitor and i'm ok. Mine has full and limited RGB options.

    I have everything on limited, even muy PC, with no problem whatsoever
     
  15. piratesephiroth

    piratesephiroth I wish I could read

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    yeah, the topic is misleading. There's nothing wrong with limited RGB.

    The problem is when you hook your Wii U console to a PC monitor that's intended to be used only with PCs.
     
  16. cheuble

    cheuble Marieismâ„¢

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    I got clickbaited so hard!
     
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