https://bugs.kde.org/show_bug.cgi?id=499934
--- Comment #10 from TheFeelTrain <thefeeltr...@thefeeltrain.com> --- > Suggestions would be welcome. It's called the "Maximum SDR Brightness" to > have some attachment of what it controls. Calling it "Maximum Reference > Luminance" would be more technically correct, but most people seeing it > wouldn't understand what it means. Most games call this "HDR Paper White" so that would be recognizable for most people. However this illustrates the problem with this setting, as games let you set this value in the their own settings. So unless the system setting is 203, the in-game setting is now going be inaccurate. For example I want my desktop to be at 100 nits because that's what I run my monitor at in SDR, but if I were to set Plasma's slider to 100 and the game's paper white setting to 200 as I usually would, everything is half the brightness it should be. It gets even more messy if I set the Plasma slider to something like 300, which is fairly normal for people to use. If the in-game setting is also set to 300, now in-game is 1.5x the brightness it should be. No reasonable person would expect it to work this way. A value of 300 should result in an output of 300. Not only is this an added layer of complexity, but it is completely invisible to the end user unless they happen to stumble across this bug report like I did. Nobody was confused about how it worked before. Now you have multiple people here who were confused enough to post about it. You've completely decoupled the in-game value from the actual output value. > Unless you're matching the viewing environment to the one the content was > mastered in, that's just plain nonsense. > If your room is brighter than the one the content was mastered in, then you > need to view the content with increased brightness, or it will look darker > than it's supposed to. > If your room is darker than the one the content was mastered in, then the > content needs to be presented with decreased brightness, or it'll look > brighter than it's supposed to. How is it nonsense? While I lack the means to measure it, I imagine my room is pretty close to a reference environment. I have black out curtains and the lamp I use is extremely dim. I run my monitor at exactly 100 nits for SDR and it is perfect. I was completely happy with how it worked in 6.2. Just like someone else already mentioned here now there is no way for me to have SDR content at 100 nits while also having HDR content at 203 at the same time. > What would that "HDR" slider apply to? Something that goes 10% above SDR > brightness levels? 20%? 50%? Something only with specific transfer > functions? If so, which ones? It is strange to me that you need to ask this. One slider for SDR surfaces and one slider for HDR surfaces is not some crazy suggestion. It's obvious it's possible to have separate settings because it already worked that way in 6.0, 6.1, and 6.2. Maybe in the future all content will be HDR but for right now there is a very clear distinction between what is HDR and what is not. -- You are receiving this mail because: You are watching all bug changes.
