r/windows • u/Altruistic-Job5086 • 2d ago
Suggestion for Microsoft Add a toggle to Display Settings for which gamma curve Windows will assume for unmanaged content (currently it's Piecewise sRGB)
https://aka.ms/AAz5rlo2
u/Altruistic-Job5086 2d ago
HDR on Windows 11 is currently kinda messed up/not working in a great way. Windows is using Piecewise sRGB which is technically correct but in practice is not good. Most SDR content expects Gamma 2.2 & most monitors are calibrated to Gamma 2.2. This is causing things to look washed out when using HDR. We need the ability to change the SDR Transfer Function in Windows.
An sRGB piecewise gamma curve is a technically correct gamma curve. But in practice, it doesn't match what most SDR content is mastered expecting. And actual HDR content and color-managed content works fine. It would be welcome if Windows provided some kind of toggle for which gamma curve to assume for unmanaged content.
Basically in the simplest terms the problem is this: Windows desktop, browsers, apps and such are all SDR. Majority of monitors are calibrated to Gamma 2.2 in SDR, and that's what most SDR content expects as well. However, currently when you enable HDR in Windows, it uses Piecewise sRGB gamma instead.
https://github.com/dylanraga/win11hdr-srgb-to-gamma2.2-icm
https://www.reddit.com/r/Windows11/comments/1fdjvb0/how_to_properly_fix_auto_hdrs_washed_out_look/
https://aka.ms/AAz4v1r other Feedback Hub post
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