Ubuntu: Reboot when Keyboard and Mouse are frozen

How do you reboot your Ubuntu Distro when the keyboard and mouse are frozen??

Here are some simple things to try before you do a hard reboot.

  • CTRL + ALT+ F2 (get to a terminal, you can then run top/kill/pkill to discover and kill the offending process)
  • ALT+ SYSRQ + R then CTRL + ALT+ F2 (as above, but first try to regain control of the keyboard)
  • CTRL + ALT + Backspace (kills the graphic session and goes to a console, all graphical applications are terminated too)
  • ALT+ SYSRQ + R then ALT + Backspace (as above, but first try to regain control of the keyboard)
  • CTRL + ALT + DEL (reboot)
  • ALT+ SYSRQ + R then CTRL + ALT + DEL (as above, but first try to regain control of the keyboard)
  • ALT+ SYSRQ + R + S + U + B (forces a clean reboot even when the keyboard is not responding)

The last item is effective. I use this frequently when my work system freezes.

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