Mac Mini mouse lag

[ganja24]

I got a Mac Mini i5 2018 connected to a 55” Samsung 4K tv via HDMI. I noticed occasionally the mouse isn’t as fluid it stalls. My previous 2012 Mac Mini had zero mouse lag on the same TV. Due I need to adjust the refresh rate? Any advice would help. Thanks

 

[gigatoaster]

Hello

Do you have USB-A devices connected to the mini? If yes, this may be the reason: https://forums.macrumors.com/threads/mac-mini-2018-bluetooth-issues.2157086/page-12

To ruling it out, try to use the mouse for a few hours without any USB devices connected to the mini.

 

[adamk77]

 

 

[ganja24]

This wireless iogear keyboard trackball combo I have is connected via USB dongle to Mac Mini. Maybe this is the cause.

 

[DeltaMac]

So, you are using a trackball (part of the iogear combo) - not a separate bluetooth mouse?

You could try a USB extender cable, so the dongle is several feet from your Mac mini.

 

[ganja24]

So, you are using a trackball (part of the iogear combo) - not a separate bluetooth mouse?

You could try a USB extender cable, so the dongle is several feet from your Mac mini.

Yes that’s correct, it’s a USB receiver dongle came with iogear combo, not a separate Bluetooth, I will try extension cable and see if it helps. Thanks

 

[DeltaMac]

Keep in mind that the dongle is not bluetooth, so that thread direction - bluetooth interference from USB 3.0 devices - does not apply to your situation. Hopefully, getting that RF dongle in a different location will fix your issue, anyway.

 

[ganja24]

Changed dongle to other USB port, issue seems to have resolved.