Ubuntu – USB Keyboard & Mouse Stopped Working (Ubuntu 14 LTS)

14.04grub2keyboardmouseusb

I've been using Ubuntu 14 LTS on my work desktop, laptop, and home desktop without any problems. Does anyone know what I can do?

What Works:

  • Keyboard on Boot
  • Keyboard in BIOS
  • Keyboard/Mouse on LiveCD
  • GRUB Selection Menu
  • Keyboard/Mouse Works on other OS's

What Doesn't work:

  • Login screen keyboard and mouse

Symptoms:

  • Stopped working for no apparent reason. (Possibly the built in software-updater changed something)
  • Internet Message pops up saying cannot connect to internet (Not sure why, works on LiveCD)
  • Blinking cursor on input field stops blinking after a few seconds.

Tried:

  • Unplugging keyboard + mouse (Both are using USB 2.0)
  • Made sure BIOS has Legacy USB Support on
  • Tried different USB ports
  • Browsing sites for a solution for a few hours, I cannot find a clear answer.

I have Linux Recovery options with several header versions, I have not tried using an older one. However, I am trying to repair the most current.

Best Answer

I booted ubuntu with kernel 3.13.0-32-generic (Not the recovery mode), and I did a software update (Software Updater Application) and this seemed to fix it.

I also ran sudo apt-get update

I have no idea how or why this happened, but it seemed to fix it.

Cliff notes:

  • I am using XServer for video even though I have an ATI Card
  • I have not manually downloaded any extra linux kernels.