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On my ThinkPad T60, the touchpad works fine but the trackpoint does not work at all. Why that?
Details and Diagnostics:
- The trackpoint is enabled in BIOS.
- The UltraNav tab of the Windows 7 mouse settings dialog shows the trackpoint as disabled (not possible to enable it) and the touchpad as enabled (not possible to disable it). This is exactly the same as how it looks when disabling the trackpoint in BIOS, but keeping the touchpad enabled there.
- The problem is the same in all OS I tried (Windows 7, Ubuntu Linux 14.04).
- A BIOS update from 2.23 to 2.27 did not help.
- It's not a trackpoint hardware defect: exchanging the keyboard with the trackpoint for a working one did not help.
- The trackpoint device does not appear under either Windows 7 or Linux. In Linux,
xinput list
only shows the touchpad (Synaptics Touchpad id=10
), but should also show something likeTPPS/2 IBM TrackPoint id=11
.
Remove the keyboard (on that computer it's a single screw under the laptop in the center) and disconnect/reconnect the flexible ribbon cable that links the keyboard and the trackpoint to the system board. – None – 2014-12-19T21:37:36.780
Didn't help in my case, as even exchanging the keyboard did not help. But you're right, it can help. Same for the touchpad ribbon connector (4 marked screws to loosen under the notebook), since a touchpad issue can be the cause as shown above. Also, I've heard a report of one case where a pinched ribbon cable was the culprit. – tanius – 2014-12-19T23:53:16.377