Not sure if it will help with this problem, but I had issues with the sa,e headset capturing and blocking either mouse or keyboard input (somewhat randomly) and sending out phantom keystrokes/mouse inputs. I noticed some posts about a different brand headset that indicated that the device presents itself both as an audio as well as a HID (keyboard/mouse) device. Ostensibly to allow the buttons to work. And apparently Xorg does not play well with that. Too late to cut a long story short - but here is a work around that works for me:
Create a file in /usr/share/X11/xorg.conf.d/ named 50-jabra-pro-930.conf (or similar) with the following contents: # GR - 13/10/2015 - switch input off on Jabra headset Section "InputClass" Identifier "Jabra PRO 930 problems" MatchProduct "GN Netcom A/S Jabra PRO 930" Option "Ignore" "true" EndSection HTH, Ger -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1123578 Title: [USB-Audio - Jabra PRO 930, recording] Recording problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1123578/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs