I use Synergy to control both of my desktops from the same keyboard and mouse. Is there a way to send Alt+Ctrl+F1 (or related combinations) to the client desktop using Synergy?

I tried using the suggestion below, but got:

$ chvt 1

Couldn't get a file descriptor referring to the console

Other ideas? I would still prefer a way to send the actual keystrokes over synergy, but if that's not possible, a work around that works will be accepted.