mouse freezing and jumping - including solution

I have a MacBook Pro (Retina, Mid 2012) with built-in HDMI port, with an LG Flatron IPS224 display connected.

Same problems with pointer "jumping". It feels almost like it is snapping to a grid. This does not happen all the time, but I cannot pinpoint when it starts.

It happens when the external display is connected and turned on. If I turn it off or disconnect it, the problem seems to vanish. It happens with a USB mouse as well as the built-in track pad.

Once it starts, to get back fluid pointer, going into System Preferences and Displays, and messing around in there (holding option key and Detect Displays, for instance) seems to help. Thanks JovanRS for the tip.

Hope this helps someone.

Great work Morten, thanks for the info! 🙂

I also have the same issue, my mouse skips occasionally (like every 5 secs) on my 2012 mac mini with 2 displays connected. One via HDMI the other using the thunderbolt port with a minidisplay to dvi adaptor.

If the 2nd monitor is off i get the jumps. If i turn it on mouse works ok. I swapped around the connections i.e. connect primary monitor on thunderbold and 2nd on hdmi and still same issue. When both are on mouse is ok.

Also tried with just one monitor connected and mouse works ok.

Its a bug and please apple fix it.

I use a microsoft wired mouse whuch i have for many years and has never caused me any trouble on either my win laptop or my previous imac..I tried another wired microsoft mouse and also a wireless logictech mouse. Same problem.

I also tried with mouse connected directly on the mac and on a usb hub which i normally use.

thats on 10.8.5

I have related issues (see https://discussions.apple.com/thread/5478231?tstart=50 ). Have you found a solution? Did the Apple customer service help you?

Also, I need to add that for me the cursor jumps if the external display IS connected (when I turn it off the mouse is fine).

I just had a chat with Apple support and was advised to bring my computer including the large screen to the next Apple store. I expect that Apple does their testing, evaluation and debugging without the consumers being involved, so I am a bit disappointed. The support person told me that there must be a hardware problem as they do not have a large track of other users having the same problem.

So apparently the problem is not acknowledged as an official bug which needs to be fixed by Apple.

Please, if you want Apple to fix this, talk to the support. Here is a link to the support chat https://getsupport.apple.com/ConfirmationAction.action# . This only works if you have a valid care protection plan. If you don't have one, you probably need to call the service number, which you can find on http://www.apple.com/support/contact/ .

Floriano, did apple solved the issue for you after taking your computer in their apple store?

Taking the computer to the store is not an option for two reasons: first of all the next store is just too far away and secondly I doubt that the problem can be reproduced while in the store (as my mouse lag only occurs sporadically).

Problem with mouse freezeing/jumping is connected to displayport & external display (dell)

each time after mac goes to sleep mouse pointer starts to lag.

If I go to monitors menu and enable DP 1.2 lag vanishes until next sleep...

this is only solution known to me for now... please take a look at this thread:

https://discussions.apple.com/thread/5478231?answerId=24254140022#24254140022