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Flickering after 10.10.3 upgrade

I use a Mac Mini with two Apple Thunderbolt Displays.


After the 10.10.3 upgrade suddenly some random coloured bars started to appear in various random points on one of the two displays.

Moving the window where the flickering appears or moving another window over the flickering makes it disappear.


To have a look at how the flickering looks like please see this short video:

http://youtu.be/dMmtPZpNu34


I'm wondering if anybody else is facing the same problem and if there is a way to fix it as its becoming quite annoying.


Thank you!

Mac mini (Late 2012), OS X Yosemite (10.10.3), Late 2012, 2.5 Intel Core i5, 16Gb

Posted on Apr 15, 2015 11:16 AM

Reply
71 replies

Apr 21, 2015 7:41 PM in response to Brian_SD

same here for me too. except my flashing bars are not colored bars but black bars and this started today and never happened before. and I too had 2 kernal panics-- one when both my mac mini's dual monitors went blank and then kernel panicked and the another when i was using safari.


I am running Mac OS X 10.10.3 Yosemite with the latest updates.

Apr 26, 2015 4:35 PM in response to MrCamaleo

Just found my Mac Mini had a panic restart while it was sleeping. Happened sometime in the last three days.


I guess I should also add that this is a late 2012 model. 2.6 i7, 16 gigs RAM. As someone else mentioned, this unit has been rock stable for almost a year until these specific updates, and now the odd graphic bar glitching and restarts are happening.

Apr 27, 2015 4:51 AM in response to MrCamaleo

I've had this problem as well.

I haven't noticed a pattern yet, but I've had a problem with all apps crashing after an extended Sleep. The last time the flickering bars appeared was also I was away from the computer for a couple of hours.

The flickering bars appeared, then when I tried to launch an app from the dock, i got a panic restart.


MacBook Pro mid-2012, 2.5 GHz Intel Core i5, 4gb

Flickering after 10.10.3 upgrade

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