Nope, it's not a hardware problem, the solution above works. The only problem is that in order to permanently save changes, you have to click on the...
Grub uses the same driver as UEFI/BIOS since system is not yet mounted.
Often issue then is a setting in UEFI/BIOS for USB support or keyboard/mouse...
I had no idea if the Ubuntu installation DVD/USB do contain these packages, if yes then I gonna install them from that. But I'm not getting one thing...