I have a Samsung RV510, a thoroughly middle of the road CeleronII business laptop with three USB2 ports as its only I/O apart from the ethernet jack (i.e. no PS/2 port) that I am setting up with FreeDos.
Regardless of whether USB Legacy is switched on or off in the BIOS, there is something handling USB. An external USB keyboard just starts working. USBUHCI complains mightily, but the /DisableOther switch takes care of it.
But the moment I run USBMOUSE, the built-in keyboard freezes, stone dead. I suppose I could keep the external keyboard plugged in but that is hardly a solution for a laptop
I've tried juggling USBUHCI's IRQs. I've tried combinations of loading into high and low memory, not really knowing what I'm doing, always with this same result. Makes no difference If I use the files with FreeDos 1.1 or the ones from this site.
Any suggestions?
TIA
Michel