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NVIDIA 430.50 Linux Driver Brings Color Fix For Pre-Turing GPUs

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  • NVIDIA 430.50 Linux Driver Brings Color Fix For Pre-Turing GPUs

    Phoronix: NVIDIA 430.50 Linux Driver Brings Color Fix For Pre-Turing GPUs

    While the NVIDIA 435 series is now stable, for those sticking to the previous NVIDIA 430 driver series that is their current "long-lived" driver branch, a new version is available...

    http://www.phoronix.com/scan.php?pag...0-Linux-Driver

  • #2
    Wonder if NVIDIA will ever fix their nvidia-settings tool so it doesn't reset display gamma values to 1 each time it loads up (and overwriting your config-rc file with default values).

    I don't think this is the fix mentioned here,

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    • #3
      Originally posted by theriddick View Post
      Wonder if NVIDIA will ever fix their nvidia-settings tool so it doesn't reset display gamma values to 1 each time it loads up (and overwriting your config-rc file with default values).

      I don't think this is the fix mentioned here,
      I wondered why it would always interfere with GNOME's night light mode.

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      • #4
        Originally posted by Britoid View Post

        I wondered why it would always interfere with GNOME's night light mode.
        I agree. Why would gamma have troubles with a night light effect (which is done by the compositor and hence has nothing to do with gamma)?

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        • #5
          Originally posted by tildearrow View Post

          I agree. Why would gamma have troubles with a night light effect (which is done by the compositor and hence has nothing to do with gamma)?
          Fortunately I rarely use the nvidia utility. I can avoid using it at night.

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          • #6
            Fixed display color range handling on pre-Turing GPUs, such that when limited color range is selected through the display controls page in nvidia-settings, output pixel values will be correctly clamped to Consumer Technology Association (CTA) range.
            Uh, I'm afraid someone got it wrong. If they're referring to luma/chroma ranges 16-235/16-240, it should still be legal to go outside that.

            The main point is that white should be luma=235 and black should be luma=16. If all you do is take video using 0-255 ranges and clamp them, it's going to look horrible. Likewise, video mastered to use 16-235/16-240 should be passed through, without clamping - even if it includes some out-of-range values.

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