Cursor does not move between monitors

rkstiens Said:

"Cursor does not move between monitors: [...]on a regular basis, I cannot move the cursor from the external monitor to the laptop. I can get it to start working again be selecting the display setting in preferences. Sometimes that is all I have to do.[...]"

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Reset the SMC and your NVRAM:

When's the last time you reset your SMC and NVRAM?

Sometimes when changes are made to the system(i.e. updates), system configurations (i.e. for Display Arrangement) become manipulated, technically. So, reset the SMC and NVRAM.

Your ports may not be being read promptly, so resetting these, all of the ports would be configured to how they should be. If one attempt does not work, it might take three times - this can be time consuming. So, make sure you have time to do this.

If you intend to have the two displays as one Extended desktop, be sure to turn this off:

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