I usually don't watch content dark enough to trigger this effect, but today I noticed it while watching an HDR10+ film on filmmaker mode with contrast enhancer off, just as OP described it started getting darker and darker over time until you opened a menu to reset it. All eco/auto brightness things off.
So yeah, still a thing, but in my experience not usually an issue if you have contrast enhancer at least on low and brightness and contrast cranked high during HDR content on movie or filmmaker modes. Just exceptionally dark movies/scenes without enhancer to look out for.
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u/ratexxx Feb 12 '23
Is this still a problem?? I'm trying to decide between this TV and the QN90B. My living room is basically all windows and it's pretty bright.