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All replies
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Sep 21, 2016 2:16 PM in response to stowelltby AlvinAquino,Yes. I had it scaled for more space. But I had the same set up with El Capitan and never had this issue.
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Sep 21, 2016 2:21 PM in response to AlvinAquinoby stowellt,I have the exact same problem. There's also a thread on Reddit with others having experiencing it too. https://www.reddit.com/r/MacOS/comments/53kdsi/graphical_glitches_on_scaled_disp lay/
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Sep 21, 2016 2:30 PM in response to stowelltby AlvinAquino,I just had a lengthy talk through apple's chat support but to no avail. I had the mac reset its NVRAM as well as its SMC, shifted to safeboot down to deleting the caches but the problem persisted. I tried scaling the resolution down to default, and the problem is solved. However, that did not give me any rest at all as I never had this problem with El Capitan even scaling the display down to the highest resolution. Though they said it doesnt seem to be a hardware problem.
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Sep 21, 2016 2:37 PM in response to AlvinAquinoby stowellt,★HelpfulI wouldn't worry, I'm almost certain it's software related. I had the problem with Sierra Beta, rolled back to Capitan and the problem was gone and then went to Sierra GM had the problem, rolled back and the problem was gone. Hopefully, they address it in an update.
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Sep 21, 2016 2:38 PM in response to stowelltby AlvinAquino,That's really reassuring. Thanks. Hopefully Apple will take notice of this issue soon.
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Sep 23, 2016 4:38 AM in response to AlvinAquinoby Headhunter06,Same issue for me. On boot, the Apple logo will briefly blink red and then continue the boot. Just as the wallpaper comes up, the screen briefly flickers -- kind of a scary multi-colored something is wrong kinda flicker -- and then everything runs fine from there. My iMac is a stock 2105 21.5 Retina with the 2TB Fusion drive. No mods or upgrades. Not sure why this update to MacOS Sierra didn't go smoothly.
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Sep 23, 2016 3:59 PM in response to AlvinAquinoby dannyboy322,I noticed for the first time today that the screen flickered a bit on startup. But I have been noticing a flicker when the screen wakes up from sleep
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Sep 27, 2016 10:41 PM in response to lunamarcoseby Diji Sundar,I also have this same issue (Only scaled resolution to more space)
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Sep 28, 2016 6:46 PM in response to AlvinAquinoby arjun.j,I have the same issue where the screen flickers on startup right about when the Apple logo comes up. I noticed that this is related to the resolution set on the MacBook. I don't see the issue on the default 1280X800 but the issue occurs on higher resolutions than that on my MacBook Pro.
Setting the resolution to something lower might help for now until they fix the issue.

