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Level 1

9 points

Fullscreen not working after upgrade; OSX crashes

Immediately after upgrading latest El Capitan to Sierra, fullscreen feature stopped working to a disastrous ends. Not only can't i enter or exit fullscreen mode on any application (Safari, iBooks, Terminal, etc), but moreover, i can't event start any application that was in fullscreen mode prior to upgrade (essentially every other application i use on my mac). Neither can i three-finger-swipe to any of fullscreen applications. OSX just crashes and shows login screen like it hasn't booted.

Effectively, my mac is useless now, i can't do anything with it. I tried restarting PRAM, tried to repair my disc, tried various "usual" things, none of which worked. Can anybody help me with this?

MacBook Pro, OS X Yosemite (10.10)

Posted on Sep 21, 2016 12:10 AM

20 replies

konkere Author

Level 1

9 points

Nov 24, 2016 12:43 AM in response to Tavish Degroot

update it. the latest version (1.62.8) fixes this behaviour.

Nov 29, 2016 8:00 AM in response to konkere

I had this issue as well. After a long and very effective session with Apple support, which involved retrieving logs and sending them for analysis, the problem was traced to IBM's Trusteer Rapport system extension, which was recommended for installation by a bank. After disabling the extension, my Mac stopped crashing when taking a window or video to full screen.

Dec 1, 2016 4:42 PM in response to RedPillOrBluePill

Give this man a GOLD medal. Did exactly the same and removed Trusteer Rapport and the problem has disappeared. Very odd as it worked perfectly well before the Sierra upgrade. Many thanks

Dec 6, 2016 11:09 AM in response to RedPillOrBluePill

I also had this problem when making anything full screen would shut down and go to login screen. I stopped the trustees rapport system extension and the problem is gone... Thanks for the info!!!!!

AY iMac

Level 1

8 points

Feb 3, 2017 1:13 AM in response to Armando Stettner

Same problem!

Fullscreen not working after upgrade; OSX crashes