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Thread: Keyboard stops working after upgrade to 21.04

  1. #1
    Join Date
    May 2008
    Beans
    106

    Keyboard stops working after upgrade to 21.04

    Hello,

    Installed Ubuntu on my Pi 4 Model B via Raspberry Pi Imager.

    Everything works fine until I upgrade to 21.04, then keyboard stops working after I sign in.
    Mousepad still works. I'm using a Logitech K400 keyboard with bluetooth usb adapter.

    Tried sudo apt-get install xserver-xorg-input-all but same problem remains. Also tried removing first with --purge.
    If I reinstall Ubuntu - everything works fine until upgrade.

    Anyone who ran into this kind of problem and was able to solve it?

    Maybe running an old version Ubuntu is the solution but then the graphic driver causing wrong resolution.

    Cheers.

  2. #2
    Join Date
    Aug 2013
    Beans
    4,768

    Re: Keyboard stops working after upgrade to 21.04

    Are you on Wayland? Try to log into the xorg session (choose this from the login screen) and see if it makes a difference.

  3. #3
    Join Date
    Mar 2010
    Location
    USA
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Keyboard stops working after upgrade to 21.04

    Did it do a kernel update?
    Code:
    uname -a
    Can you still see it in the USB dev's
    Code:
    lsusb
    lsusb -t
    If you interupt the Grub Menu, select other, and use an earlier kernel does it work?
    On other, what Graphics Server are you using? Xorg or Wayland?

    Concurrent coexistance of Windows, Linux and UNIX...
    Ubuntu user # 33563, Linux user # 533637
    Sticky: [all variants] Graphics Resolution- Upgrade /Blank Screen after reboot
    UbuntuForums system-info Script

  4. #4
    Join Date
    May 2008
    Beans
    106

    Re: Keyboard stops working after upgrade to 21.04

    Quote Originally Posted by monkeybrain20122 View Post
    Are you on Wayland? Try to log into the xorg session (choose this from the login screen) and see if it makes a difference.
    It works with xorg session
    It's now default. I can just use Ubuntu xorg session instead of Ubuntu?

    Thank you!

    Quote Originally Posted by MAFoElffen View Post
    Did it do a kernel update?
    Code:
    uname -a
    Can you still see it in the USB dev's
    Code:
    lsusb
    lsusb -t
    If you interupt the Grub Menu, select other, and use an earlier kernel does it work?
    On other, what Graphics Server are you using? Xorg or Wayland?
    I havn't tested this yet. Seems to work now with xorg so I maybe not need to do this.
    There is no grub on raspberry pi. It doesn't boot that way.
    See my answer above for Xorg/Wayland.
    Thanks.

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