Why HDR looks washed out on a PC
Grey, flat, oddly lifeless — the most common complaint about HDR on Windows, and it is almost never the file.
The Windows HDR switch
Windows has a system-wide HDR toggle. With it on, everything that is not HDR looks washed out; with it off, HDR films look flat instead. Either way something on screen is wrong, which is why people give up on it.
Let the player handle it
On an ordinary SDR monitor the reliable arrangement is to leave the Windows switch off and let AIX Player tone-map HDR films for that display: the desktop and ordinary video look normal, and an HDR film keeps its highlight and shadow detail instead of being clipped. On a display that genuinely does HDR, turn the Windows switch on and you get the real thing.
Fine-tuning afterwards
If a film is still darker than you like — some are graded that way — brightness and contrast adjust it without touching the file. Gamma, saturation, hue, sharpness and the tone-map strength are part of the Pro picture suite.
How to tell whether your screen really supports HDR
Many monitors advertise HDR without having the brightness to show it, and the result is worse than not using it at all. Windows lists HDR support in its display settings, but the more useful test is practical: if bright scenes look grey rather than bright, the panel cannot reach the levels the film expects. On those screens, letting the player reshape the picture gives a noticeably better result than switching Windows HDR on.
Why desktop and video need different settings
This is the heart of the problem. Windows applies its HDR switch to everything, but only films carry HDR information — your desktop, browser and ordinary video do not. Switch it on and everything except HDR film looks bleached; leave it off and HDR film looks flat. Handling it per-file in the player is what lets both look right without touching a system setting between films.
When the film itself is simply dark
Some films are graded dark on purpose, and no setting will make a night scene look like daylight without ruining what the director intended. Where a scene is genuinely too dark for the room you are in, a small lift in brightness is better than a large one, and adjusting gamma rather than brightness keeps the black areas black instead of turning them grey. AIX Player remembers the adjustment against that file, so you set it once.
Worth knowing
A screen without real HDR support cannot show it however the settings are arranged.
Many are bright enough for tone-mapped HDR but not for true HDR.
Picture tweaks are remembered against that file.
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