Fun find with a USB-DVI KVM I just got. The manual says the "double-tap scroll lock to switch" feature only works on Windows... it turns out that, instead of listening for the scroll lock KEY, it's listening for the scroll lock LED... and macs have no Scroll Lock while modern X11 leaves it unbound by default. Probably a hack for regional keyboard layout variations and keymap customization. On the plus side, the KVM can be scripted using `xset`. :) #kvm #linux #keyboard #cool