GRUB not responding to keyboard
Solution 1:
Windows 7 and Ubuntu 14.04LTS dual boot, GRUB2 reinstalled using boot-repair, wireless USB keyboard, no keyboard recognized on GRUB2 screen resolved.
- BIOS Setup
- Integrated Peripherals
- Legacy USB Support --> [Enabled]
I now have up and down arrow keys on the GRUB2 screen. NumLock is now toggled off at boot time, but NBD.
I'm not sure how to mark it RESOLVED, but since it's not a new thread, I don't think I have the power.
Solution 2:
I realise this is quite an old post, but I have had the same problem with a clean install of Ubuntu 20.04 and Windows 10.
I found that grub would not respond to my keyboard when connected to a USB3 port, but works fine with legacy USB2.
Solution 3:
Although some time has passed and several hints about not working keyboard in grub can be found on the web, i discovered a reason which to consider may help in some cases:
The USB keyboard may be unusuable in grub because another USB device is also plugged in which interferes with grub keyboard usage.
For details in such a case please see https://savannah.gnu.org/bugs/index.php?57010