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Question: Mouse stutter with High Sierra - iMac

Hello,


when I updated fom Sierra to High Sierra a couple days ago, I had the problem that with every mouse I used (Magic Mouse 2, Logitech G403, normal Windows Mouse) there was a sudden stutter in the movement, every couple seconds.


The stutter was less frequent with the magic mouse, but also there and really annoying when you try to work.


So I tried to reset my NVRAM and it was gone. Until today. The problem is there again but now a NVRAM-Reset does not work anymore. Same problem with every mouse I use. The only mouse you "can" work with is the magic mouse, because the stutter happens "only" every 10-20 seconds.


I can not wrap my head around, what the problem could be.


My iMac:

High Sierra 10.13.1

27" Mid 2011

Intel Core i7 3,4 GHz

AMD HD 6970M


Does someone have an idea?

iMac, macOS High Sierra (10.13.1)

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Answer:

So turns out, the problem was my second monitor, wich is connect with a from DP to Mini-DP in a thunderbolt slot in my mac.


When the second monitor is connected but NOT turned on, there are mouse stutters. When I turn it on, these problems are gone.


So really wierd, but maybe it is a problem from the monitor itself or the type of the connection (DP to Mini-DP).


The monitor is a Dell U2715H 27".

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Nov 15, 2017 1:49 AM in response to AdiAll In response to AdiAll

So turns out, the problem was my second monitor, wich is connect with a from DP to Mini-DP in a thunderbolt slot in my mac.


When the second monitor is connected but NOT turned on, there are mouse stutters. When I turn it on, these problems are gone.


So really wierd, but maybe it is a problem from the monitor itself or the type of the connection (DP to Mini-DP).


The monitor is a Dell U2715H 27".

Nov 15, 2017 1:49 AM

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Question: Mouse stutter with High Sierra - iMac