Has your El Capitan Mac ‘split-screened?’

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Level 1

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Has your El Capitan Mac ‘split-screened?’

http://i.imgur.com/R6wnqbd.jpg

I resolved it by force restarting it, so anyone who might experience it can know what to do. But I want to know the trigger, because I was just watching a YouTube video like a normal person would, and then bam! It started to “split-screen.” I think it's a bug in the latest OS X, El Capitan, but I am not sure, and I don't know for sure, so any ideas, so that I can avoid it from happening again?

SPECS:

21.5-inch iMac, mid-2011

2.8 GHz Intel Core i7

16 GB 1333 MHz DDR3

AMD Radeon HD 6770M 512 MB

iMac (21.5-inch Mid 2011), OS X El Capitan (10.11)

Posted on Oct 7, 2015 10:01 AM

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Answer 1

rkaufmann87

Level 10

140,418 points

Oct 7, 2015 10:08 AM in response to jayrokt

Split View (note the correct terminology) seems to work fine for me, however you need to know how to enable it. Also, if you had a second display connected to your iMac at some point please read this.

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Answer 2

jayrokt Author

Level 1

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Oct 7, 2015 6:14 PM in response to rkaufmann87

I'm not actually talking about the Split View because I wasn't using it (and I know how to enable it). I was saying that it just happened like that — the screen split, left side went to the right, vice versa. I don't have a second display.

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Answer 3

morrispe

Level 4

1,224 points

Oct 7, 2015 6:43 PM in response to jayrokt

I had this happen to my 2011 27" iMac and in addition to the image splitting and wrapping to the other side of the display it was also locking up and showing other types of display corruption. Eventually it failed to boot at all and ended up being a hardware issue in my case. Keep an eye on it and if it continues to happen or if you see other problems I'd make sure you have secured a full backup and plan to take it in for a repair.

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Answer 4

jayrokt Author

Level 1

0 points

Oct 8, 2015 10:34 AM in response to morrispe

UPDATE: I'm fairly certain that this is more of a software bug. I triggered it thrice while I was playing flash videos in El Capitan. It doesn't trigger in my Windows Bootcamp partition.

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