Also confirm, same problem on 15.04 release, hitting both an old Microsoft mouse as well as a Razer mouse.
This seems identical to https://bugzilla.redhat.com/show_bug.cgi?id=869065 and they fixed it with their patch of xorg-x11-drv-evdev-2.8.4-1.fc19 and since there are no comments after that fixed about resolution or not then it seems that it may be fixed with their patch. 15.04 is on version 2.9.0 of xserver- xorg-input-evdev so either the fix is not upstreamed or the fix did not work, but regardless, this problem still persists as the buttons that should be mapped to tilt never report anything and when tilt is pressed it is changing the scrollwheel axis rapidly. ** Changed in: xserver-xorg-input-evdev (Ubuntu) Status: Expired => Confirmed ** Bug watch added: Red Hat Bugzilla #869065 https://bugzilla.redhat.com/show_bug.cgi?id=869065 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-input-evdev in Ubuntu. https://bugs.launchpad.net/bugs/926917 Title: Mouse wheel tilt not works Status in xserver-xorg-input-evdev package in Ubuntu: Confirmed Bug description: Ubuntu 12.04After updating the xserver-xorg-input-evdev package from 2.6.0-1ubuntu13 to 2.6.99.901-1ubuntu3 the Microsoft Wireless Laser Mouse 8000 wheel tilt works like scrolling and the xev utility reports that buttons 4 and 5 clicked when I try to tilt the wheel left and right (should report 6 and 7 buttons for the tilt, 4 and 5 for wheel scroll). It worked right before the update. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/926917/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

