this post was submitted on 02 Feb 2025
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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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.
That’s incorrect. While it can be assumed that HDR content supports at least 10bit colour, it is not necessary for monitor or content. The main difference is contrast and brightness. SDR is mastered for a brightness of 100 nits and a fairly low contrast. HDR is mastered for brighnesses of usually 1000 or even 2000 nits since modern displays are brighter and capable of higher contrast and thus can produce a more lifelike picture through the additional information within HDR.
Of course you need a sufficiently bright and/or contrasty monitor for it to make a difference. An OLED screen or displays with a lot of dimming zones would produce the best results there. But even a 350nit cheap TV can look a bit better in HDR.