[mythtv-users] Can watch TV through mplayer but not mythtv

[Ellen Spertus]

I've been following Jarod's directions for setting up a PVR-[23]50
system (http://pvrhw.goldfish.org/tiki-pagae.php?pageName=rh9pvr250). 
I've nominally finished the installation but appear to have some
configuration problems.  I can watch TV through mplayer at the shell but
not through mythtv.

Details:

1. I can watch TV through "mplayer /dev/video0".  My
"/etc/mplayer/mplayer.conf" contains "vo=dga".  

2. I have configured my capture card within mythtv as described. 
Specifically, under "Capture Cards", I have specified /dev/video0 with
Default Input "tuner" and card type "Hardware MPEG Encoder Card".

3. Under "Input Connections", I enabled /dev/video0 (Tuner0 -> cable)
where "cable" was defined under "Video Sources".

4. When I start "mythbackend", I get the following message:

Probed: /dev/video0 - Composite 0
Probed: /dev/video0 - Composite 1
Probed: /dev/video0 - Composite 2
Probed: /dev/video0 - Composite 3
Probed: /dev/video0 - Tuner 0
Probed: /dev/video0 - Composite 4
Probed: /dev/video0 - S-Video 0
Probed: /dev/video0 - S-Video 1
Probed: /dev/video0 - S-Video 2
Probed: /dev/video0 - S-Video 3

5. When I "Watch TV" through mythfrontend, the picture is messed up,
similar to what happens if I run mplayer from the shell without
specifying vo, which leads me to ask...

How do I tell mythtv to give mplayer the argument "vo=dga"?  I specified
it under "Video Settings", but it's not clear to me that's used for live
TV.  Does mythtv use /etc/mplayer/mplayer.conf?

I would be most grateful for any advice.

Ellen