That sounds like a lot of work. Why not fix the problem? Are you sure there wasn't some adjustment made to the older Fedora installation? I'd be surprised if the X configuration of earlier Fedora releases would have left the X server open. It would be helpful for diagnostic purposes if you could transcribe accurately whatever error messages you're seeing, and a description of the specific events leading up to them.
BTW, you have read the user manual for the logic analyzer, right? It does explain how to accomplish what you're attempting.
Last edited by theNbomr; 05-30-2013 at 10:46 AM.