Results 1 to 4 of 4

Thread: USB Keyboard

  1. #1
    Join Date
    Sep 2008
    Beans
    529
    Distro
    Ubuntu 12.04 Precise Pangolin

    USB Keyboard

    I have an external USB keyboard attached to my laptop.
    I have noticed, when i shutdown my computer and start it again, i can use the external keyboard at BIOS or GRUB stage and ofcourse later also but if i soft restart my computer i am not able to use my external keyboard till i reach the Ubuntu login stage. Is it a normal activity ? If not what is the problem ?

  2. #2
    Join Date
    Sep 2008
    Beans
    529
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: USB Keyboard

    Can any one help ?

  3. #3
    Join Date
    Sep 2011
    Location
    Pennsylvania, U.S.A.
    Beans
    1,942
    Distro
    Ubuntu Development Release

    Re: USB Keyboard

    You might be seeing what I've seen with some USB keyboards and not with others. I'll preface this by saying I'm no expert but this is how it appears to me. In order for a PC to recognize a USB keyboard, it has to either have that capability built into its BIOS or failing that, using an O.S. driver. I'm guessing that a warm boot doesn't 'go back' far enough to re-initialize the USB keyboard driver code. If relying on an O.S. driver, the O.S. must first load, at least partially. I've seen a difference with other hardware recognition between warm boot and cold boot as well, so it's not just keyboards.
    Last edited by kurt18947; August 28th, 2013 at 11:37 PM.

  4. #4
    Join Date
    Sep 2008
    Beans
    529
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: USB Keyboard

    Thats informative. I did not know that. So if i change my keyboard, that 'might' solve the problem ?

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •