[mythtv-users] Audio, but No Volume Control

Robin Gilks g8ecj at gilks.org
Wed Dec 13 10:40:50 UTC 2006

> Hi
> I have spent some time configuring my new MythTV box and am nearly ready
> to start enjoying it bar one problem, I cannot control the volume!  The
> volume is set at 'midrange' and when I turn up or down the volume via
> hotkeys it makes no difference whatsoever.
> My build is based on a mobo with on board AC97 sound chip (Intel), a PVR
> 500 MCE, a PCI nVidia FX5200 which hosts KDE based FC4 and MythTV .20.
> All functions of Myth seem to work OK bar the Volume control in Live TV,
> I am not sure about the volume in MP3 playback I will confirm.
> I had a loop back cable from audio out on the PVR500 to Line in on the
> Sound card but have found this seems unnecessary as when it is removed
> audio is still present.  I originally had a bt778 capture card installed
> and have since upgraded it to the 500 so i am unsure if this is related
> to the problem.

First the bad news - there is no audio output on a pvr500 - thats an input
for when using svideo or composite. The good news is that you have already
found this out by removing the cable and you still get sound!!

Go into setup from the frontend emnu, the 3rd screen is audio - select the
mixer device (I use 'ALSA:default') and the control (I use 'Master') and
away you go!! (or at least you should do...)

Certainly you should find a combination that works for your hardware on
this screen. Note that not all choices are present in the pulldowns - you
may have to actually type in your selection (particularly the ALSA ones).

Robin Gilks

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