4 ms·

color temperature, not backlight level.

• cbsmith 11y ago
  ...and ironically the way f.lux works means it stresses out the GPU more when it is adjusting colour temperature, so...
  • jevinskie 11y ago
    Except when it is transitioning color temperatures, I don't see why this would be the case. I reversed f.lux and it just calls some UpdateRGBLUT type function based on the color temperature. I think this LUT is applied to the frame buffer (perhaps this is how color profiles work?) even if f.lux is not being used.
    • cbsmith 11y ago
      First, f.lux periodically adjusts the LUT, so it does call this fairly often. Secondly, in my experience, adding this functionality seriously increases the odds that my laptop will switch from using the Intel GPU to the Nvidia GPU.
• lcswi 11y ago
  Are you sure? I use redshift and it can control the backlight in addition to the color I believe.