I have Debian Jessie 8.0 amd-64 installed. It is a dual boot system with Widnows 8.1 alongside. Both the systems work fine with a few glitches coming at times on jessie. But I assume it should get stabilised with time.

Problem is:

The usb keyboard is no longer detected until the GRUB stage crosses.

* This implies I am unable to press F2 to enter into BIOS
* I am unable to chose Windows 8.1 by using arrow key on the keyboard.

When the default system (first in the grub list), in this case Debian is selected after time runs out then the keyboard comes back to life and works properly thereafter.

So far I have tried the possible solution given at http://www.kasploosh.com/weblog/1400..._keyboard.html but it did not work.

Any suggestions will be greatly appreciated ...

Some Information
================

$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux testing (jessie)
Release: testing
Codename: jessie

$ uname -r
3.13-1-amd64

Many Thanks
Sid

Find a ps2 keyboard, plug it in, enter bios and set "legacy usb support" to yes. It is not an os problem.

Many thanks for the tip ... It solved the problem ...

The "legacy usb support" was already enabled. However the bios setting for "Fast Boot" had additional setting for usb support, which was disabled (implying usb will only become available after os loads). Changing it to Partial (usb with keyboard and mouse available) or Full Initialization (Full Support of all usb devices at any time) solved the problem.

It has been currently set to Partial Initialization to get some balance between boot speed and minimal support needed.

Thanks again for guiding me into the right direction ...

Thank you so much - I have had this problem for so long I can't remember when it started. But it is fixed now!

On my Award BIOS I had to change to:

OnChip PCI Devices -> OnChip USB Controller -> USB Keyboard support via BIOS

instead of "OS". Hope it help as well.

Cheers