Any thoughts on this one?

Manoj Iyer
Ubuntu/Canonical
Hardware Enablement

On 04/05/2011 09:53 AM, Manoj wrote:

The Lenovo X220 has a touch pad and a track point. I would like to get
some clues as to if there is any work around in the kernel for the issue
I am seeing below:

Case 1: Touchpad and Trackpoint enabled in BIOS.
================================================
In this case the touchpad works correctly, but the trackpoint is not
detected at all. Some times after random number of reboots, the
trackpoint will start to respond approximately 15mts after X starts. But
the mouse will be detected as PS2 Generic Mouse.

Case 2: Touchpad Disabled Trackpoint Enabled in BIOS
======================================================
In this case the trackpoint works as expected, and it is detected as
TPPS/2 IBM TrackPoint.
[ 9.675396] input: TPPS/2 IBM TrackPoint as
/devices/platform/i8042/serio1/input/input9

I suspect this is a BIOS bug? Is it possible to work around this in the
kernel?