[mythtv-users] PVR-350 volume

Joe Votour joevph at yahoo.com
Tue Sep 13 06:57:18 UTC 2005


I thought that the answer to this might be in the
archives, but after scanning through pages of them
using different terms, I'm not so sure...

I upgraded to ivtv-0.3.8 tonight, and put my PVR-350
back in the machine (so I have a PVR-350 and a
PVR-500).  I've decided to switch to the PVR-350
MPEG-2 decoder rather than using xv (I can't get the
xv output to fill the screen without overscan and
stuff).  Plus, the PVR-350 MPEG-2 decoder output is
pretty darn slick.  Anyway, back to the point...

I have connected the PVR-350 audio output to my
soundcard's (Creative SBLive 5.1) Line-In, and I get
sound coming out of the sound card without a problem. 
The catch though is that I can't adjust the volume
level within MythTV (pressing Vol+/Vol- or Mute
doesn't actually change/mute the volume).  Well, okay,
that's not actually quite true - there are two ways
that I can do this:
1. Allow MythTV to control the Master volume instead
of the PCM, or,
2. Change the Line-In volume within alsamixer while
watching a recording.

Option (1) is undesireable, since it affects
everything else on the system (xmame, xine, etc). 
Option (2) sucks, since I have to SSH in and run
alsamixer.

Does somebody have a solution to this problem?  If
not, then I guess I'll make a patch that adds support
for selecting the Line-In volume as the volume that
gets changed by the volume controls. (Audio page of
General Setup, "Mixer Controls" option.)

Thanks,
Joe

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