Intense blue flickering (MBA, '13, El Capitan)
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Within the last 24 hours my screen has started to occasionally get a really cool, blue-ish tint every few minutes. It usually lasts for 3-10 seconds. If I quit Flux my screen switches to the blue tint and stays that way until I start Flux again. Version 36.4.
Come to think of it I did install some OS X updates yesterday. I'm now running 10.11.1.
Help?
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After updating yesterday to 10.11.2 I'm having the same effect. Screen get a blue-ish tint and after few seconds get is "f.lux" tint again.
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same here!
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Two things to try: turning off the Displays Automatic Brightness setting, and try rebooting (with no external monitors connected).
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We'll check out 10.11.2.
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We'll call this the "auto brightness bug".
We have these configs in-house, and here is what we are seeing after a fresh boot:
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2012 MBA on 10.11.2: no flashing whether or not Automatically Adjust Brightness is enabled
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2013 MBA on 10.11.1: yes, flashing when Auto Brightness is enabled, otherwise no.
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2014 MBPr on 10.11.1: no flashing at all (either video card), whether or not Auto Brightness is enabled. This version is also using a custom profile because it's dual GPU.
We see best results after a clean boot with no external devices attached.
When we've seen bugs, it has been with external display (Thunderbolt 27) or after a lot of wake/sleeps/etc.Sounds like other people are seeing this more constantly, so any other steps you can think of would help a lot.
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This is really easy to reproduce by covering the camera (with my hand) at night; the screen will instantly turn blue. Then I can make it red again by hitting the melanopic light refresh button in the about box.
Only happens on mid '13 MBA. My mid '15 MBP is not affected.
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Yes this is related to Apple's new "auto brightness" feature which also adjusts midtones in bright rooms.
And it definitely happens on our MBA with auto-brightness "on" in settings, and it goes away otherwise (may take a reboot also?)
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I've just installed the 36.5 version, and seems that the bug is solved.
Thanks!
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@lpuerto Damn! It returned! (the flickering)
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The ones with 10.11.2... have you reported it to apple? Seems that it's also an apple problem :)
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Since there are two reports of MacBook Pros not being affected, I'll add that my Mid-2014 Retina Macbook Pro running 10.11.1 IS affected. It has integrated graphics only.
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Yes in the newer betas we are seeing it anytime the Automatic Brightness feature is on (or when it's recently been turned off).
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I am on the same setup, and with the same problem. It was so annoying I quit flux. But that was even more annoying.
I disabled "Automatically adjust Brightness" in Display prefs and sofar sogood.
OSX 10.11.1
MacBook Air (13-inch, Mid 2013) -
Is there anything that can cause it to re-enable itself? I could've sworn I'd disabled that, but I looked again and it was enabled. Just disabled it and no flickering (so far).
FWIW I'm on a Late 2013 13" MBPr with 10.11.1.
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@whatismyusername that's frightening! did you reboot?
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@lorna Sorry, just remembered it was the "Adjust keyboard brightness in low light" setting I had disabled. False alarm.
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Wow, I didn't even know that was a thing now, ha. Whew.
