Is there a way to prevent the phone from going to suspend when connected to bluetooth device such as bluetooth headphones or speaker ? This way wheh i am listening to music to prevent from going to sleep and when i disconnect the bluetooth device to follow the procedure in power options
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Possibly not for “when connected to bluetooth device” but possibly, yes, for “running specific application” i.e. listening to music.
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How can this be done for a specific applications ? With shockwave it doesn’t seem to work
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The incantation that you are looking for is “inhibit suspend”.
It’s not the first time that someone has asked for it in respect of playing music: Suspend to honour audio streaming?
Here is discussion of inhibiting suspend around an SSH session but the basic command should be similar: Login via SSH && suspend - #10 by dos
You wouldn’t be doing it from a service however.
You would want to look at man gnome-session-inhibit
And to be clear … this would inhibit suspend while the music player is running. It won’t know whether you are actually listening or even whether the music player is actually playing anything. 
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