Using an external USB Keyboard to edit your grub file, have you tried any grub parameters like
i8042.reset i8042.nomux=1 i8042.nopnp=1 i8042.direct or i8042.dumbkbd=1 - I am listing several that you can try to find one that works.
Using an external USB Keyboard to edit your grub file, have you tried any grub parameters like
i8042.reset i8042.nomux=1 i8042.nopnp=1 i8042.direct or i8042.dumbkbd=1 - I am listing several that you can try to find one that works.