I can confirm this issue remains with Ubuntu 14.04.3 LTS. Mouse is a Microsoft Wireless Laser Mouse 5000 v1.0
Running xev confirms mouse wheel tilt right and left (buttons 6,7) are being remapped to mouse wheel scroll up and down (buttons 4,5). version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 Bug Report filed: Bug #1508475 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/926917 Title: Mouse wheel tilt not works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/926917/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs