Discovered this problem yesterday, which led me to this bug-report: Middle-button clicking was dead and didn't work on a clean new xenial install, same mouse works fine on an upgraded PC.
Testing with xev showed nothing on the new PC: Middle button clicks were not recognised. "xinput list" told the mouse was: "PixArt HP USB Optical Mouse id=1 [slave pointer (2)] Ran a few "xinput test <ID>" commands. (NOT only on the mouse's ID (15) but a another to initially, lower number, typo.) And alas: Middle button clicks were suddenly detected and worked like charm - for half an hour. Then it died again. I repeated the "xinput test" deal, now on several ID's, lastly the mouse. After this, the middle button clicks were once again detected. This time i rebooted the PC, power-pff/on. Wheel-clicking survived the reboot and still works, 36 hours later or so. I'm not a kernel person but as an old-time user I got a little back-flash to the days of kernel 2.0, when devices often had to be added and linked manually. A look in /dev revealed several recent changes, from the time of the xinput tests. Grep'ed around and found: me@pc:/dev$ ls -latr |grep "11:48" drwxr-xr-x 4 root root 520 Dec 16 11:48 input drwxr-xr-x 21 root root 4200 Dec 16 11:48 . crw------- 1 root root 247, 0 Dec 16 11:48 hidraw0 drwxr-xr-x 2 root root 4140 Dec 16 11:48 char me@pc:/dev/input$ ls -latr |grep "11:48" drwxr-xr-x 21 root root 4200 Dec 16 11:48 .. drwxr-xr-x 4 root root 520 Dec 16 11:48 . crw-rw---- 1 root input 13, 34 Dec 16 11:48 mouse2 crw-rw---- 1 root input 13, 80 Dec 16 11:48 event16 drwxr-xr-x 2 root root 220 Dec 16 11:48 by-path drwxr-xr-x 2 root root 100 Dec 16 11:48 by-id me@pc:/dev/input/by-path$ ls -latr |grep "11:48" drwxr-xr-x 4 root root 520 Dec 16 11:48 .. lrwxrwxrwx 1 root root 9 Dec 16 11:48 pci-0000:00:14.0-usb-0:1:1.0-mouse -> ../mouse2 lrwxrwxrwx 1 root root 10 Dec 16 11:48 pci-0000:00:14.0-usb-0:1:1.0-event-mouse -> ../event16 me@pc:/dev/input/by-id$ drwxr-xr-x 4 root root 520 Dec 16 11:48 .. lrwxrwxrwx 1 root root 9 Dec 16 11:48 usb-PixArt_HP_USB_Optical_Mouse-mouse -> ../mouse2 lrwxrwxrwx 1 root root 10 Dec 16 11:48 usb-PixArt_HP_USB_Optical_Mouse-event-mouse -> ../event16 drwxr-xr-x 2 root root 100 Dec 16 11:48 . me@pc:/dev/char$ lrwxrwxrwx 1 root root 18 Dec 16 11:48 189:8 -> ../bus/usb/001/009 lrwxrwxrwx 1 root root 10 Dec 16 11:48 247:0 -> ../hidraw0 lrwxrwxrwx 1 root root 15 Dec 16 11:48 13:34 -> ../input/mouse2 lrwxrwxrwx 1 root root 16 Dec 16 11:48 13:80 -> ../input/event16 Hoping the listings above can be of help in solving this annoyance. I agree "Importance" should be raised to major. -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
