xev fires no events for the zoom in/out slider but does fire events for multimedia keys
sudo evtest with event3 device yields the following for zoom in/out slider: Event: time 1449522782.778509, type 4 (EV_MSC), code 4 (MSC_SCAN), value c022d Event: time 1449522782.778509, type 1 (EV_KEY), code 418 (KEY_ZOOMIN), value 1 Event: time 1449522782.778509, -------------- SYN_REPORT ------------ Event: time 1449522782.906509, type 4 (EV_MSC), code 4 (MSC_SCAN), value c022d Event: time 1449522782.906509, type 1 (EV_KEY), code 418 (KEY_ZOOMIN), value 0 Event: time 1449522782.906509, -------------- SYN_REPORT ------------ Event: time 1449522783.290512, type 4 (EV_MSC), code 4 (MSC_SCAN), value c022e Event: time 1449522783.290512, type 1 (EV_KEY), code 419 (KEY_ZOOMOUT), value 1 Event: time 1449522783.290512, -------------- SYN_REPORT ------------ Event: time 1449522783.354512, type 4 (EV_MSC), code 4 (MSC_SCAN), value c022e Event: time 1449522783.354512, type 1 (EV_KEY), code 419 (KEY_ZOOMOUT), value 0 Event: time 1449522783.354512, -------------- SYN_REPORT ------------ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1523675 Title: Microsoft Ergonomic Keyboard 4000 has two input devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1523675/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs