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All replies
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Helpful answers
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Oct 10, 2015 12:17 PM in response to Allianteby Alliante,It *might* be a Mission Control setting with this Display Driver configuration.
I've turned off "Displays have separate spaces" and the system so far *SEEMS* to be more stable.
I'll keep you posted over the course of the weekend.
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Oct 27, 2015 9:53 PM in response to Allianteby mattymo11,Apparently it's an issue with 2009 Mac Pros + dual monitors: https://discussions.apple.com/thread/7252069
I've had to run just one monitor for the last couple weeks
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Nov 1, 2015 10:01 AM in response to Allianteby Paul Rutherford1,Your post about changing setting in Mission Control helped me. See my post on page 4:
mac pro late 2013 freezes with spinning wheel
Thanks a lot!
Paul
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Apr 11, 2016 7:57 AM in response to Allianteby JaneAA,turning off "Displays have separate spaces" decreases my WindowServer CPU usage from 30~80% down to under 10% immediately. Thanks!!!