Thinkpad Trackpoint Scrolling in Ubuntu Karmic Koala
Scrolling using the Thinkpad Trackpoint (middle click/hold + mouse nub) is still not fixed by default in Ubuntu 9.10 (Karmic Koala). Here’s how I fixed it.
Following the instructions on this site, I created a new file (/etc/hal/fdi/policy/mouse-wheel.fdi) as root that contains:
<match key="info.product" string="TPPS/2 IBM TrackPoint">
<merge key="input.x11_options.EmulateWheel" type="string">true</merge>
<merge key="input.x11_options.EmulateWheelButton" type="string">2</merge>
<merge key="input.x11_options.XAxisMapping" type="string">6 7</merge>
<merge key="input.x11_options.YAxisMapping" type="string">4 5</merge>
<merge key="input.x11_options.ZAxisMapping" type="string">4 5</merge>
<merge key="input.x11_options.Emulate3Buttons" type="string">true</merge>
</match>
If you don’t want to restart, you can log out and restart the gdm and hal services. However, I simply restarted and scrolling worked upon logging in!
The document here is apparently the original source of this information. I’m mostly posting this for myself for future reference (and in case either of the afore mentioned pages go down).

Awesome. I think I’m going to have to do this. And now for a history lesson;
http://www.osnews.com/story/22274/The_History_of_the_ThinkPad_Name
Thanks for the link, very informative.
Definitely try this, scrolling actually works like it should with this modification.
if you are using 9.10 I highly recommend:
apt-get install gpointing-device-settings
gpointing-device-settings as a regular user you have all the settings needed at hand
Thanks for the tip, it’s a pretty useful tool.
work for me… thks to all!
Thanks for the tip, i’m about to buy my ThinkPad and im going to install Ubuntu, nice to know that i wont lose the great trackpad!