MATRIX_KB in 2.8.0

Does the problem happen with P1 unconnected?

Same when P1 is unconnected.

So its still not clear what is different between our setups. I guess It could be a faulty
7I73 but its still a pretty strange fault.

It does seem the the matrix_kb component should have a reset pin
to mask any startup transitions and restore operations if there has been an I/O fault

A reset pin would be good.

I do not think it is a faulty 7i73.

I think there is a bug in my hal. It works when I connect matrix_kb in the postgui.hal and works with 2.7.14.

Thanks for helping me find the work around.