I'm using a Logitech K750(keyboard) and M705(mouse) using the same (one!) unifying USB connector. I paired them with my mac, but use them on my desktop with Ubuntu 12.10. Works nice. Just a few adjustments I'd like to do.
This mouse allows to disable the "steps" of the scroll wheel easily, which enables me on the mac to scroll stepless like using a touchpad. I'm not talking about smooth scrolling but stepless scrolling! This does somehow not work on Ubuntu. Is there no possibility to do this? This mouse also supports horizontal scrolling (not stepless). Is there a way to adjust these features? Maybe in xorg.conf? Maybe someone has a mouse xorg.conf-section I can experiment with?
xev | grep button tells me there's no difference between using the wheel with or without steps (Button 4 and 5). So the thing should just be a question of software interpretation. At least it's a question of making steps smaller (1 pixel?) and enable acceleration, I think.