Lenovo ThinkPad USB keyboard middle click does not always paste

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Problem

When I try to paste using the middel mouse button of my Lenovo ThinkPad KU-1255 keyboard, it sometimes pastes and sometimes it doesn't, whereas my mouse middle click always pastes. How can I get constant paste behaviour for my keyboard middle mouse button click?

Environment

  • Lenovo ThinkPad keyboard KU-1255
  • Kubuntu 14.04
    • KDELibs-4.13.3

Workaround 1. Short-press

Short-press does paste. Long-press doesn't paste. This is intended behaviour, so - while keeping the middle mouse button pressed - the trackpoint can also be used for vertical scrolling, and no paste has to be done after releasing the middel mouse button.

Workaround 2. Remove long-press detection

# Find the device id.  Example output:
# Virtual core pointer                          id=2    [master pointer  (3)]
#   ? Lenovo ThinkPad Compact USB Keyboard with TrackPoint      id=10   [slave  pointer  (2)]
xinput --list
# Disable wheel emulation
xinput set-prop 10 "Evdev Wheel Emulation" 0

Journal

20160128

http://unix.stackexchange.com/questions/192124/middle-click-scrolling-with-thinkpad-avoid-pasting
Forum thread with same problem
http://www.thinkwiki.org/wiki/How_to_configure_the_TrackPoint
Try this: xinput set-prop 10 "Evdev Wheel Emulation" 0

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