https://bugs.kde.org/show_bug.cgi?id=499934
--- Comment #19 from TheFeelTrain <thefeeltr...@thefeeltrain.com> --- (In reply to Zamundaaa from comment #18) > No, they don't. The vast majority of TVs can't even go above 200 nits, they > can't "follow the EOTF" without making the image terrible. > TVs do a ton of processing, including tone and gamut mapping, dynamically > changing brightness and so on to make the image look good with the limited > capabilities of the display. Okay? I specifically said "TVs worth buying." I'm not talking about $200 TCL and Amazon Fire TVs I'm talking about TVs actually capable of hitting at least 1000 nits. You should not be basing the HDR experience on displays not even capable of proper HDR. > And as you noticed yourself, they have *one* brightness setting just like > every other sane system, not multiple for different kinds of content. No I didn't. It's like you didn't even read my comment. "There's also a lot of TVs will run the UI at one brightness and then jump to max brightness once you're actually watching HDR content. Some TVs and monitors will also lock you out of controlling the brightness in HDR mode entirely." They explicitly have one brightness setting for the UI and one brightness setting for watching HDR content. That is two brightness settings. > That's not how HDR works. Setting the reference luminance to 100 nits does > not mean that the maximum brightness gets limited to 500 nits. Setting it to > 203 nits does not mean the full brightness range of the monitor gets used, > and setting it to 10 doesn't guarantee it does not get used. Then explain how it works. That's my biggest problem with this whole thing. Nobody knows how it works. I am going off of what you said earlier: > If you set SDR brightness to 500 nits, HDR content will be roughly (ignoring > tone mapping) 2.5x as bright as in 6.2 How do this not mean HDR content will be 0.5x if I set SDR Brightness to 100? Can you explain what this setting is *actually* doing then? You are legitimately the only person on planet Earth who knows how Plasma's HDR functions. All we have to go off of is what you've said here. Again, that's one of my biggest issues with this change. It's confusing. -- You are receiving this mail because: You are watching all bug changes.
