This bug was apparently introduced in the userspace (evdev) in 12.04 rather than in the kernel. On Christopher Penalver's suggestion, I created a new bug report, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1260513, in order to investigate this bug further. As described in post 20 in that bug report, the bug manifests itself in 12.04 but is not present in 11.10 as both 12.04 and 11.10 were tested with the same mainline kernel version.
The workaround in post #16 here appears to fix the bug in evdev. -- 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: Incomplete 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

