iPhone 13 brightness auto-adjusting

Iphone 13 26.4.2


Brightness auto changing.


I know this comes up a-lot, but I'm struggling to fix it.

if I'm watching a video within facebook for example the video can go extremely bright for no apparent reason. I know it’s designed to adjust but barely watchable. switched auto brightness off and a few other settings but still doing it.

even now its dimming whilst typing and lighting hasn’t changed


Are their other settings I'm missing


thanks

iPhone 13

Posted on May 22, 2026 1:33 PM

Reply
3 replies

May 22, 2026 2:07 PM in response to Lovegladly

Some apps like Facebook can automatically adjust certain features and the adjustments can be dependent on your battery charge status. HDR content (photos and videos) will automatically brighten and then automatically darken when SDR content is displayed/viewed. The Facebook settings can override your display settings.


This HDR content adjustment also affects many other third party apps.

iPhone 13 brightness auto-adjusting

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