usb-keyboard doesn't work in GRUB menu.

Hi

A few days ago I've noticed, that the usb-keyboard does not work in GRUB2 menu. I can not change any position using the keyboard buttons. I can not use the Enter button to boot selected OS. Pressing 'e', 'a', 'c' options/buttons also not working. I can not do anything, but I have to notice, that the usb-keyboard works okay in a graphical environment (XFCE).

I had to change the usb-keyboard to the standard PS/2 keyborad. With this type of keyboard, everything started to work - I can edit the command before booting or modify the kernel arguments etc. Generally, I can do everything. Should I report a bug?

Best regards!

,----[ NOTE/WARNING: ]
| Question: https://answers.launchpad.net/ubuntu/+source/grub2/+question/214341
| Solution: open BIOS configuration page and Enable USB-Legacy support.
`----

I've noticed a similar question about a usb-keyboard and GRUB menu. At this moment I can not verify this solution. I check it out within a few days. I hope, that this solution, also will help in my case.