Screen dimming couple seconds after waking

Discussion in 'iOS 11' started by kevinf1990, Oct 4, 2017.

  1. kevinf1990 macrumors member

    Aug 15, 2011
    I have an iPhone 8+ and have noticed something odd with the screen brightness upon waking the phone and turning on the display. Auto-Brightness must be on for the issue to happen.

    First press the lock button to turn on the screen. Pay close attention to the wallpaper on your screen. After a a second you will see the screen abruptly dims slightly (not the auto brightness fade). I am running 11.0.2 and still see this issue.

    I have been able to replicate this issue in a lot of the display phones in the Apple store (need to turn on auto-brightness as it is turned off in the display models).

    Does anyone else see this? Anybody else finding this bug annoying?
  2. Mlrollin91 macrumors G5


    Nov 20, 2008
    Ventura County
    I've seen it a few times, but I think it has something to do with True-Tone. When my true-tone is turned off, it doesn't do it.
  3. kevinf1990 thread starter macrumors member

    Aug 15, 2011
    I've seen some correlation with true tone but not as much as auto-brightness. I've seen it happen even if true tone is off.

    but definitely DON't see the issue if auto brightness is turned off
  4. FelixDerKater macrumors 68030


    Apr 12, 2002
    Nirgendwo in Amerika
    The auto-brightness is a lot more zealous in 11.
  5. ncrypt macrumors 6502

    May 16, 2012
    +1 also see this and find it quite annoying! Especially noticeable when the screen is full of notifications.
  6. tkukoc macrumors 65816


    Sep 16, 2014
    Wish I Was In Space!
    Have to agree, 100%. Also believe it has to do with True Tone and of course IOS11 bugs. I'd imagine this will be adjusted in a future update. Beta 11.1 does not fix this issue however.

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5 October 4, 2017