A little more info:
'xinput list' provides the following when the device is plugged in:
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ ELAN Touchscreen id=12 [slave pointer (2)]
⎜ ↳ DLL0665:01 06CB:76AD Touchpad id=14 [slave pointer (2)]
⎜ ↳ Logitech K520 id=10 [slave pointer (2)]
⎜ ↳ Logitech Wireless Mouse id=11 [slave pointer (2)]
⎜ ↳ GN Netcom A/S Jabra EVOLVE LINK MS id=18 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Sleep Button id=9 [slave keyboard (3)]
↳ Integrated_Webcam_HD id=13 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=15 [slave keyboard (3)]
↳ Dell WMI hotkeys id=17 [slave keyboard (3)]
↳ UVC Camera (046d:081b) id=16 [slave keyboard (3)]
"GN Netcom A/S Jabra EVOLVE LINK MS" shows up as a core pointer(!) so
this is very likely related to the issue.
I put the following into /usr/share/X11/xorg.conf.d/50-jabra.conf:
Section "InputClass"
Identifier "Jabra"
MatchProduct "GN Netcom A/S Jabra EVOLVE LINK MS"
Option "Ignore" "on"
EndSection
This prevents the pointer issue described in the bug at the cost of breaking
the volume control buttons. I tried using
Option "ButtonMapping" "0"
but this had no effect; only "Ignore" seems to work.
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https://bugs.launchpad.net/bugs/1581626
Title:
Switching to USB sound device stops USB mouse clicks from registering
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1581626/+subscriptions
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