[Bug 46997] Re: Kubuntu lockups with PS2 mouse or Microsoft Wireless Optical Mouse 2.0

[Paul Sladen]

If it happens, can you try the following key-combinations (which are
handled at progressively lower-levels) which are likely depending on the
state of the system;  however if the caps-lock key doesn't change the
LED then it's a good indication of a likely lockup.

  (b) Ctrl-alt-backspace (Kill X server)
  (c) Ctrl-alt-del (Request shutdown)
  (d) Alt-SysRq-s Alt-SysRq-u Alt-SysRq-b (Sync, Unmount, reBoot)

You said that the "PS/2 mouse is to verify".  Does this mean that the
lockup does not occur when using the PS/2 mouse and only occurs when
using the Wireless MS one?

BTW, if you already have Ubuntu installed and want to do 'kubuntu', you
can do:

  sudo apt-get install kubuntu-desktop

or select the 'kubuntu-desktop' package in the package-manager.

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Kubuntu lockups with PS2 mouse or Microsoft Wireless Optical Mouse 2.0
https://launchpad.net/bugs/46997