Thanks very much James for the very useful info (comment #92)! It has helped me to finally solve this annoying problem on my machine.
I'm running Kubuntu 17.10 with a Logitech M310 mouse. For me, I had to do things slightly differently to you. "xinput" revealed that my mouse was device id 10, and "xinput --list- props 10" did not reveal any "Evdev Middle Button Timeout" property. Instead, I have a "libinput Middle Emulation Enabled (289)" property, which was set to 0. So I enabled it using: xinput --set-prop 10 289 1 It took a few moments for this to kick in, but it has now fixed the problem - my scroll-wheel clicking events are finally working again :-) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1581088 Title: Middle mouse (wheel-click) button stopped working after upgrade to 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1581088/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
