spurious mouse button presses when moving mouse

[aspirinjunky]

hi,

I've been banging my head for a while, and thought it might be time to ask for some advice. For the most part, everything works, but I'm having an issue trying to get the mouse to work correctly. Pardon the following description, but I'm rather a newbie at this:

Setup:

• Host: Ubuntu 19.04 running on x240 laptop
• Guest: freeBSD64
  • Installed XCFE

Problem:
The mouse (either the usb mouse or the built in trackpad) seems to send random button events when it is moved. I used both moused

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moused -f -t ps/2 -d 2>&1 >/dev/null | grep buttons

and

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xev (xev | grep -i button)

to verify that mouse events are sent while just moving the mouse.

I ran the tests both at the root console, and in XCFE and X11 desktop sessions.

Misc:

• I tried playing with any relevant sounding settings I could find in the VM configuration options.
• If I ssh -XC to the freeBSD machine, everything works fine on the remote machines.
• I trid running "xev | grep -i button" on the host machine just for fun, and it any spurious button events when I moved the mouse around (when it wasn't being captured by the vm)

thanks in advance for any ideas (I'm ready for the dope-slap because I've missed something stupid...)



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