xinput --set-prop --type=float 25 142 -0.6 0.0 0.0 0.0 -0.6 0.0 0.0 0.0 1.0
I couldn't find hacks online of people who frankenstein'd-in a trackpoint to an existing keyboard, so i just started taking things apart to see if I could scry a solution.Then you haven't looked around here long enough. ;)
Drove out to the local store and picked-up the only TKL keyboard that didn't feel like absolute junk - A 'Sharkoon' Purewriter with Mx Blue switches (Chinese) for about 50€. Quickly I grew to love the switches and my typing speed began to recover to closer to what I typed in the 90s. Fantastic!Cool. But I think it has Kailh Choc Mini switches, not Cherry MX. ;)
Trying to center the bit on the 3.5mm wide trackpoint nub was HARD!A common solution to that problem is to first punch a small indent that the drill bit would catch into. There are dedicated "hole-punch" tools that are spring-loaded so you would only need to press it down to make an indent but a nail and hammer would work.
At some point i'd like to make a case for the controller, or maybe even hide it under the kbd (making it approx 0.5cm taller).Some trackpoints controllers are known to speak PS/2 signals, even some found in relatively modern ThinkPad keyboards. If you are lucky, you might be able to replace the Thinkpad keyboard's controller with a cable to your Linux PC.
kernel: [120838.798408] usb 1-3.2: rejected 1 configuration due to insufficient available bus power
regardless of which peripheral i try. I used two different Lenovo controller boards, both had same errors on both ports. Hooking up a small USB cable with lighting showed power/light.Show Image(https://abload.de/img/89cnh.jpg)
Is there any DIY way to wire-up the trackpoint buttons to the Lenovo kyemat controller without having to stuff the entire keymat into the housing under my new keyboard?You can not solder wires onto the matrix sheet made by PET (in general). Solder wire onto copper tape with conductive adhesive and paste it on the matrix line.