Public bug reported: After a while the mouse pointer runs over the screen along a straight line (upwards, downwards, diagonal etc.) if the numpad mouse was enabled using setxkbmap -option keypad:pointerkeys This bug will be difficult to reproduce as it seems to occur randomly and only in certain setups. I encounter it working under KDE 4.9 on Ubuntu 12.04 (also previous versions) which was why I asked here: http://forum.kde.org/viewtopic.php?f=111&t=106913 I encounter it only working in dual screen setup with external keyboard and mouse (both Logitech) attached to my Lenovo T61 thinkpad. So far not if I do indeed use the numpad mouse but when it was left on unintentionally (not deactivated by pressing Shift+Num-Lock ). The movement of the pointer can be compensated by moving the mouse in the opposite direction but the pointer runs too fast to perform a secure logout/reboot. At the same time the system does not react to keyboard input. This is a serious bug which forces the user to force reboot the system without any chance to close unsaved files.
** Affects: xorg (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1060970 Title: Mouse pointer goes crazy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1060970/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs