My setup hasn't changed - LG TV controlled via RS232. I swear I used to just add "Games Console" to A/V Devices, set up the pipes in the wizard, and then pressing the resulting scenario would change the TV input to AV1 (for example) and I could alter the volume etc. But this doesn't seem to work now.
The TV onscreen orbiter changes to black squares, the mobile orbiter displays the correct controls, but the TV input does not change over. Have I forgotten something?
I did try changing the entry for /dev/tty (default is 'please select'), but all that did is stop the TV from working.