Eli Wang
Level 1 (9 points)
Mac OS X

Q: Mouse Cursor Misplacement with External Monitor

Hello everyone,

 

After I updated to macOS Sierra, when my MacBook Pro connects to my external monitor, I find it hard to aim my mouse cursor to the window edges. Normally when I put the cursor at the edge of a window, the cursor should turn to the two-arrow shape that allows me to resize the window. Though now on an external monitor, when the cursor is just close to the window edge, its shape changes; but when it's close enough that normally it should change the shape, it changes back to the arrow pointer. This makes it hard to aim the cursor.

 

Though I've found a workaround: plug the external monitor when the computer is awake. If I plug the monitor when the computer is off or sleeping, the issue will always happen when I open/wake the computer.

 

This happens only after updated to macOS Sierra and only on my external monitor. The built-in one is always fine, whether with an external one plugged or not.

 

My MacBook Pro is Retina, 15-inch, Mid 2014 one, with 2.5GHz Intel Core i7 processor and 16GB Ram, also with a discrete GPU.

 

Anyone having the same problem?

 

Thanks in advance!

MacBook Pro with Retina display, macOS Sierra (10.12), 2.5GHz, 16G RAM, dGPU

Posted on Oct 8, 2016 7:00 PM

by PhotoCamGuy,Apple recommended
PhotoCamGuy PhotoCamGuy
Level 1 (11 points)
A:

I solved my problem by restarting in Safe Mode, determined that the external monitor problem worked correctly. Deleted all Startup applications running at power up associated with my User Login.

 

Has solved my cursor misplacement issues.

 

Larry

Posted on Oct 17, 2016 6:39 PM

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Eli Wang

Q: Mouse Cursor Misplacement with External Monitor

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  • Helpful answers

  • by PhotoCamGuy,

    PhotoCamGuy PhotoCamGuy Oct 16, 2016 7:19 PM in response to Eli Wang
    Level 1 (11 points)
    Oct 16, 2016 7:19 PM in response to Eli Wang

    I have this exact same issue. My MacBook Pro cursor and screen windows work fine. On both a Dell UP2414Q or a Dell UP3214Q external monitor, as the cursor is positioned at the corner of a window, the cursor alignment is off and the cursor changes to odd shapes. Also when I'm in an application like Adobe Lightroom, the cursor on the external monitor will change to a strange shape (icon) when I'm grabbing a scrolling bar or attempting to click on an action link.

     

    Sometimes the cursor changes to a hand shape, and sometimes I can guess where the active portion of the cursor is located.

     

    OS X 10.11never had these issues. macOS 10.12 has issues with external monitor cursor position.

     

    I haven't found a work around. Tried using the Accessibility control panel, but limited success.

    Larry

  • by PhotoCamGuy,Apple recommended

    PhotoCamGuy PhotoCamGuy Oct 17, 2016 6:39 PM in response to PhotoCamGuy
    Level 1 (11 points)
    Oct 17, 2016 6:39 PM in response to PhotoCamGuy

    I solved my problem by restarting in Safe Mode, determined that the external monitor problem worked correctly. Deleted all Startup applications running at power up associated with my User Login.

     

    Has solved my cursor misplacement issues.

     

    Larry

  • by PhotoCamGuy,

    PhotoCamGuy PhotoCamGuy Oct 19, 2016 4:06 PM in response to PhotoCamGuy
    Level 1 (11 points)
    Oct 19, 2016 4:06 PM in response to PhotoCamGuy

    Correction, my problem is not solved. Cursor alignment is off with my external Dell UP2414Q using Safari. As position cursor in the lower right corner, the expand icon doesn't show up till moving the cursor away from the window. Also the cursor changes to a strange icon (if the window is dragged to the main screen of the MacBook Pro, the cursor works properly). Dang the window back to external monitor and cursor alignment is not correct. Tested with 10.12.1.

  • by Eran,

    Eran Eran Oct 19, 2016 4:32 PM in response to PhotoCamGuy
    Level 1 (39 points)
    Mac OS X
    Oct 19, 2016 4:32 PM in response to PhotoCamGuy

    It looks like macOS Sierra 10.12 Beta 5 (released today to developers) has solved the problem for me.

  • by Eli Wang,

    Eli Wang Eli Wang Oct 19, 2016 8:14 PM in response to PhotoCamGuy
    Level 1 (9 points)
    Mac OS X
    Oct 19, 2016 8:14 PM in response to PhotoCamGuy

    I have the exact same monitor as you do: Dell UP2414Q. I tried once to boot into safe mode, but failed. The computer just turned black screen. Then I was able to boot into normal mode. I'm kind of busy for the moment so I'll try safe mode again later.

     

    Though I don't think my startup items have any problems. I have only one there: AdobeResourceSynchronizer which doesn't seem to affect any monitor related issues.

  • by Eli Wang,

    Eli Wang Eli Wang Oct 20, 2016 7:46 PM in response to Eran
    Level 1 (9 points)
    Mac OS X
    Oct 20, 2016 7:46 PM in response to Eran

    Did you mean 10.12.1 Beta 5?

  • by Eran,

    Eran Eran Oct 20, 2016 7:50 PM in response to Eli Wang
    Level 1 (39 points)
    Mac OS X
    Oct 20, 2016 7:50 PM in response to Eli Wang

    Yes, 10.12.1 Beta 5 (16B2553a). And it's still problem free after I suffered from it since the macOS Sierra was released.