title: How to enable QEMU-Monitor Console in Virtual Machine Manager?
body: <p>I use Virtual Machine Manager to run several Guest OSs with QEMU-KVM. I read it somewhere that by inputting ctrl+alt+2 should pop up monitor console. It is not working or disabled. Is there any way I can turn it on? </p>
  
  <p>What I am trying to do is to dump physical memory of GuestOS.
  With this command,</p>
  
  <pre><code>pmemsave 0 0x20000000 /tmp/dumpfile 
  </code></pre>