[PROBLEM] How to disable and then enable HDMI output

[Warren Coffey]

I have an issue and I've tried a lot of solutions and as such I'm looking for a custom one.

I've set up my Raspberry Pi running XBian. The video is being displayed on my television but not the audio, however when I unplug the HDMI cable and then plug it back in a second later, the sound will work.

The unplug/plug back in of the HDMI cable has to be done at the start of every single video played within XBMC to get the sound working.

What I am wondering is that if it is at all possible to make this process automatic within the Pi, so that when a new video is played, the Pi detects this and runs a piece of code to automatically disable and then enable the HDMI connection, rather than having to do it manually each time?

Thank you in advance for any help received.