Hello,<br>
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I'm having trouble with my soundbar, which also works as an AV receiver (AVR), going to sleep after a few minutes of no audio from MythTV, e.g. if paused or in menus.<br>
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As the soundbar is working as an AVR, when it sleeps not only do I lose sound, but the picture also disappears, so this is quite annoying!<br>
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The soundbar doesn't seem to do this with my Roku box or PS3, so I was wondering if there was something MythTV (or Linux) could do to avoid this happening too.<br>
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To expand:<br>
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The soundbar has several sockets, including analogue audio inputs, optical input, Bluetooth input, 3 HDMI inputs and one input/output socket for HDMI ARC, the latter of which plugs into the TV.<br>
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The HDMI ARC socket is used as an output when HDMI 1, 2 or 3 are selected as the current input on the soundbar - the soundbar will play the audio directly from the HDMI 1, 2 or 3 input, and pass the signal onto the HDMI ARC socket for display on the TV. So the soundbar can be used as a switcher as well as speakers, if you run out of HDMI sockets on the TV.<br>
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The HDMI ARC socket can also be selected as an input on the soundbar itself, in which case it will play whatever sound the TV is generating, for sources plugged into the TV itself, or when using the TV built-in tuner, or smart facilities.<br>
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According to the soundbar manual, by design it will go to sleep after a few minutes of silence on the currently selected input. This certainly seems to be the case when the analogue audio inputs are used.<br>
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As I say, if MythTV is plugged into one of the three HDMI inputs and the TV plugged into HDMI ARC, after a few minutes of no audio output from MythTV, the soundbar will go to sleep, turning off both sound and picture.<br>
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This seems to be design, and I would have to live with it, if it wasn't for the fact that other HDMI sources plugged into the soundbar don't seem to cause this behaviour, so it seems technically possible to be overridable by the source.<br>
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For example, if my Roku box is plugged into one of the soundbar HDMI inputs but is paused or in its menus, the soundbar won't go to sleep. Similarly with my PS3.<br>
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Interestingly, when the HDMI ARC socket is selected as the input on the soundbar, this also causes the soundbar to not sleep (like with the Roku and PS3) even if the TV is not outputting any sound, as long as the TV is actually switched on (this may depend on the TV, but seems to be the case with a Panasonic and a Samsung at least).<br>
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So one workaround is that I can plug MythTV directly into one of the TV HDMI inputs, and the sound will still come out of the soundbar and it won't go to sleep.<br>
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However, my TV has limited HDMI inputs and for other reasons I might prefer to connect it via the soundbar. And anyway, I am now intellectually intrigued how this could be solved.<br>
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So, is there anything I can set in MythTV, or elsewhere in Linux, to stop this? Do you think the Roku or PS3 are sending "silent" audio output continuously to stop this happening, and if so, can I do the same on the PC?<br>
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Note that this is not being caused by the PC power saving, as I can be actively scrolling through menus etc., and the soundbar will suddenly sleep - it seems to be related directly to the soundbar detecting no audio after a few minutes.<br>
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Thanks in advance.<br>
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John