[mythtv-users] Can't get audio to work on frontend

[Bobby Gill]

I just did a reinstall of my Arch linux desktop and all is it should be,
except I can't get sound to work in mythfrontend now. I am using alsa
(1.0.23), an M-Audio Revo 7.1 card and all sound works in everything else,
including mixing (flash plays in browser while mplayer plays a 5.1 video,
mpd plays a song, etc.). In Mythfrontend settings for audio I ran the Scan
for audio devices, and it shows (correctly from what I can tell)
ALSA:iec958:CARD=Revolution71,DEV=0. Speaker configuration is: Stereo (I use
analog tv w/pvr-150's). Mixer device is ALSA:default and PCM.

Here is output from mythfrontend:

2010-12-02 00:58:49.559 Loading en_us translation for module mythvideo
2010-12-02 00:58:49.658 Found mainmenu.xml for theme 'Arclight'
2010-12-02 00:58:50.067 MythCoreContext: Connecting to backend server:
192.168.1.100:6543 (try 1 of 1)
2010-12-02 00:58:50.068 Using protocol version 63
2010-12-02 00:59:09.793 Received a remote 'Clear Cache' request
2010-12-02 00:59:13.630 New DB connection, total: 2
2010-12-02 00:59:13.645 Connected to database 'mythconverg' at host:
192.168.1.100
2010-12-02 00:59:15.327 TV: Attempting to change from None to
WatchingPreRecorded
2010-12-02 00:59:15.458 AudioPlayer: Disabling Audio, params(0,2,44100)
2010-12-02 00:59:15.605 AudioOutput Error: Aborting Audio Reconfigure.
Invalid audio parameters ch 2 fmt 0 @ 44100Hz
2010-12-02 00:59:15.605 AudioPlayer: Disabling Audio, reason is: Aborting
Audio Reconfigure. Invalid audio parameters ch 2 fmt 0 @ 44100Hz
2010-12-02 00:59:15.605 playCtx, Error: Aborting Audio Reconfigure. Invalid
audio parameters ch 2 fmt 0 @ 44100Hz
2010-12-02 00:59:15.688 AFD Warning: ScanATSCCaptionStreams() called with no
PMT
2010-12-02 00:59:15.688 AFD: Opened codec 0xa32b41a0, id(MPEG2VIDEO)
type(Video)
2010-12-02 00:59:15.688 AFD: codec MP2 has 2 channels
2010-12-02 00:59:15.688 AFD: Opened codec 0xa32b2790, id(MP2) type(Audio)
2010-12-02 00:59:15.796 AO: Opening audio device
'iec958:CARD=Revolution71,DEV=0' ch 2(2) sr 48000 sf signed 16 bit reenc 0
2010-12-02 00:59:15.796 Opening ALSA audio device
'iec958:CARD=Revolution71,DEV=0'.
2010-12-02 00:59:15.801 AudioPlayer: Enabling Audio
2010-12-02 00:59:15.921 Clearing OpenGL painter cache.
2010-12-02 00:59:15.994 VDPAU: Created 2 output surfaces.
2010-12-02 00:59:15.995 VDPAU: Version 1
2010-12-02 00:59:15.995 VDPAU: Information NVIDIA VDPAU Driver Shared
Library  260.19.21  Thu Nov  4 20:56:20 PDT 2010
2010-12-02 00:59:15.995 VDPAU: Created VDPAU render device 1920x1200
2010-12-02 00:59:16.009 Player(0): Forcing decode extra audio option on
(Video method requires it).
2010-12-02 00:59:16.020 [mpegvideo_vdpau @ 0xb4c1a4a0]warning: first frame
is no keyframe
2010-12-02 00:59:16.100 Player(0): Video timing method: USleep with busy
wait
2010-12-02 00:59:16.101 TV: Changing from None to WatchingPreRecorded
2010-12-02 00:59:16.183 VDPAU: Added 2 output surfaces (total 4, max 4)
2010-12-02 00:59:17.809 Marking recording as unwatched
2010-12-02 00:59:17.996 TV: Attempting to change from WatchingPreRecorded to
None
2010-12-02 00:59:18.006 VDPAU Painter: Clearing VDPAU painter cache.
2010-12-02 00:59:18.006 MythPainter: 43 images not yet de-allocated.
2010-12-02 00:59:18.093 TV: Changing from WatchingPreRecorded to None
2010-12-02 00:59:18.118 Marking recording as unwatched
2010-12-02 00:59:19.490 Preview: RemotePreviewRun() -- no reply..
2010-12-02 00:59:20.161 OpenGL: Deleting OpenGL Resources
2010-12-02 00:59:20.214 Deleting UPnP client...

Here is seemingly relevant snippet from mythbackend.log:

2010-12-02 00:59:11.957 [mpeg2video @ 0xb66e54a0]Warning MVs not available
2010-12-02 00:59:11.986 [mp2 @ 0xb66e54a0]incomplete frame
2010-12-02 00:59:11.995 AFD Error: Unknown audio decoding error
2010-12-02 00:59:17.648 Reloading backend settings
2010-12-02 00:59:17.666 Received a remote 'Clear Cache' request
2010-12-02 00:59:23.897 ~MythContext waiting for threads to exit.
2010-12-02 00:59:26.055 MainServer::ANN Monitor
2010-12-02 00:59:26.085 MainServer::ANN Monitor
2010-12-02 00:59:26.095 adding: mythbox as a client (events: 0)
2010-12-02 00:59:26.106 adding: mythbox as a client (events: 0)

Appreciate any help, thanks a lot!
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