This bug is still active and affects Ubuntu 14.04LTS, the workaround proposed by aleko74 (alexei-kojenov) in comment #4 is effective, but a bug fix would be prefereable.
The workaround is: create a new configuration file in "/usr/share/X11/xorg.conf.d" called "50-plantronics.conf" or similar. Insert: Section "InputClass" Identifier "Plantronics" MatchVendor "Plantronics" Option "Ignore" "true" EndSection ** Changed in: xserver-xorg-input-evdev (Ubuntu) Status: Expired => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1006156 Title: Mute button on USB headset steals and holds on to mouse focus To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/1006156/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs