alt+m can launch multiple frontends
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/home/mythtv/.fluxbox/keys has a line that just runs mythfrontend directly. It should probably use a launcher script so that multiple frontends can't be run on the same hardware and display. (It is potentially useful to run two frontends on the same hardware, if they are displayed on different displays.)
fluxbox: change keys so that mythfrontend-start is run instead of calling mfe directly
I have often run two frontends on one display. I might want to leave one frontend in the create dvd progress screen and another watching a recording. I can flip to see how the dvd burn is going simply by alt-tab'ing between the frontends. There may be many other use cases where you might want to do this.
That's valid, but given that it's possible to unintentionally launch multiple frontends without significant feedback, I'd feel better if there were a dialog that would confirm that the user wants to run two frontends at the same time. I wouldn't want to take away your ability to do this, but I also don't want people doing this accidentally.
Your usage also suggests another angle on this: If there were a way to auto-suggest launching a second frontend when a user is about to start (or just started) a lengthy process, that would help avoid bottlenecks among users who don't know they can launch another frontend.
Good idea. Something like "There [are already n frontends|is already a frontend] running. Do you really want to start another one? Start Another Frontend/No"
Attached is a script that will display an xmessage window if more than 1 mythfrontend PID if found. Maybe when MythVantage is ready for .22+ we can use that for the GUI so that it would work with the users remote control and nicer looking.