Flickering after 10.10.3 upgrade

Question

Level 1

102 points

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

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Answer 1

MrCamaleo Author

Level 1

102 points

Apr 16, 2015 4:06 AM in response to MrCamaleo

one more example:

https://youtu.be/jAnI-AVzAR0

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Answer 2

Apr 19, 2015 2:31 AM in response to MrCamaleo

Hello,

Same here:

https://www.dropbox.com/s/91whtdbfqszo0gq/2015-04-10%2000.56.46.mov?dl=0

https://www.dropbox.com/s/renej5dbgm6oatx/2015-04-17%2016.18.12.mov?dl=0

Are you also experiencing cold restarts? Here's another related thread: Cold restarts after 10.10.3 update.

Mac Mini Late 2012, Yosemite 10.10.3, i5 with 16GB RAM

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Answer 3

MrCamaleo Author

Level 1

102 points

Apr 19, 2015 3:21 AM in response to [GeorgeT]

HI George,

luckily no cold restarts for me and, apparently, the flickering is gone after the additional 10.10.3 update released on April, 17.

if the flickering or any other issue appears again I will update this discussion.

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Answer 4

Apr 19, 2015 3:27 AM in response to MrCamaleo

You're luckier than I am then 🙂

I also hoped that the 10.10.3 Supplemental Update released on Apr 16th would help, but unfortunately it didn't 😟

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Answer 5

Brian_SD

Level 1

0 points

Apr 19, 2015 10:43 AM in response to MrCamaleo

I'm experiencing the exact same issue, and even have had a couple panic restarts, which never happened before. I came on the forums to find if others were having the same issues, and looks like they are. These issues actually started after the supplemental update for me.

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Answer 6

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.

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Answer 7

Apr 21, 2015 8:12 PM in response to MrCamaleo

have any of you guys tried a pram reset in addition to the smc reset?

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Answer 8

MrCamaleo Author

Level 1

102 points

Apr 21, 2015 10:58 PM in response to MacGallant

No I haven't but the flickering seem solved after the additional update, also I am not experiencing any restart.

Maybe it worth to try both resets. Please let me know, even if the problem is gone for me Im curious to know if you all find a solution at the end.

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Answer 9

Apr 22, 2015 12:14 AM in response to MacGallant

I've tried both the PRAM and SMC reset. Both before and after the supplemental update. No change 😟

btw my bars are also sometimes black and sometimes coloured.

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Answer 10

mhmower

Level 1

4 points

Apr 22, 2015 6:31 PM in response to MrCamaleo

I am seeing the same issues.

Mac Mini late 2012

OS X 10.10.3 with sup updates

I am now seeing flashing bars, sometimes black and sometimes color striped.

I have also had a panic too.

This system has been rock stable until the last round of updates.

😟

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Answer 11

MrCamaleo Author

Level 1

102 points

Apr 24, 2015 1:20 AM in response to [GeorgeT]

Ouch, this morning the flickering appeared again... 😠

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Answer 12

MrCamaleo Author

Level 1

102 points

Apr 25, 2015 2:39 AM in response to MrCamaleo

UPDATE

it looks like the flickering appears when I have more than one Goolge Chrome – Version 42.0.2311.90 (64-bit) – windows open.

When I reduce all the windows, except one, the flickering does not appear anymore.

Can somebody confirm this behaviour?

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Answer 13

Brian_SD

Level 1

0 points

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.

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Answer 14

Isra

Level 1

39 points

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

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Answer 15

Brian_SD

Level 1

0 points

Apr 27, 2015 10:42 AM in response to MrCamaleo

Just had something else happen. The Mac Mini was asleep since yesterday evening, and it's currently almost 11am. When I tapped the keyboard to wake it, it came up without asking for a password, which NEVER happens. I checked my security settings and it says it needs a password immediately when waking from sleep.

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