deskthority

The culprit was/is a Renkforce USB-PS/2 converter like this one here: https://www.amazon.de/Renkforce-Tastatu ... 0107XOVA4/.

TL;DR This is a great product: a flawlessly working, no-hassle drop-in replacement for your original IBM Model M controller at a very reasonable price. The other day, I got a custom made controller from Jörn for my Model M and I wanted to share the experience. I opened the case of the keyboard, too...