title: How can I keep gnu screen from becoming unresponsive after losing my SSH connection?
body: <p>I use a VPN tunnel to connect to my work network and then SSH to connect to my work PC running cygwin.  Once logged in I can attach to a screen session and everything works great.</p>
  
  <p>Now, after a while, I walk away from my computer and sooner or later, the VPN tunnel times out.  The SSH connection on each end eventually times out and then I eventually come back to my computer to do some work.  Theoretically, this should be a simple matter of just restarting the VPN, reconnecting via SSH, and then running "screen -r -d".</p>
  
  <p>However apparently when the sshd daemon times out on the cygwin PC, it leaves the screen session in some kind of hung state.  I can reproduce a similar hung state by clicking the close box on a cygwin bash shell window while it's running a screen session.</p>
  
  <p>Is there any way to get the screen session to recover once this has happened, so that I don't lose anything?</p>