[ltp] T440p touchpad replacement failed :(
Sat, 27 Aug 2016 13:55:51 -0500
On Sat, Aug 27, 2016 at 10:03:00AM -0500, /dev/rob0 wrote:
> On Sat, Aug 27, 2016 at 10:24:19AM +0200, Hendrik-Jan Heins wrote:
> > Second: if you replace the touchpad, also replace the ribbon
> > cables. They are not made to be connected and disconnected too
> > often.
> Okay, I will try this. But I don't think my problem is the cable
> itself; I think it is the connector on the motherboard.
Yes! I looked again at this cable. This time I took out the new
touchpad again and examined that end of it also.
It has color coding on each end: green, with a transparent tape
"handle" on the motherboard end; blue and no handle on the touchpad
end. Interestingly, the motherboard end appears to be about a half
This time I left a bit more length to go through the bezel slot to
reach the motherboard connector, and IT WORKS! Partly.
I can move the pointer with the touchpad, and the main touchpad's
click is functional. The three buttons DO NOT respond.
This result was not surprising, because close examination showed a
minor defect in one of the ribbon cable's contacts.
So I do need to get a new ribbon cable now. But that's okay;
optimism has returned. :)
Thanks again for the suggestion, which has gotten me on the right
track, I believe. Perhaps in a week or three I can report back my