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GNOME 48 Lands HDR Support Bits At The Last Minute
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this post was submitted on 02 Feb 2025
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One day someone will explain to us what HDR is and why we should care.
Currently most monitors use 16bits for colour (65,536 different possible colours).
The human eye can see about 10,000,000.
HDR / True colour is 24bits, 16,777,216 colour variations, which is more than what humans can see.
You should care because it means images on your device will look true to life, especially as screens get brighter materials like gold will look much nicer.
That's not right. Most monitors use 8 bits per color / 24 bits per pixel, though some are still using 6 bpc / 18bpp.
HDR doesn't mean or really require more than 8bpc, it's more complicated than that. To skip all the complicated details, it means more brightness, more contrast and better colors, and it makes a big difference for OLED displays especially.