[mythtv-commits] Ticket #1277: Initial tuning of analog channel doesn't output sound

[MythTV]

#1277: Initial tuning of analog channel doesn't output sound
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 Reporter:  mattsch at gmail.com  |        Owner:  danielk
     Type:  defect             |       Status:  new    
 Priority:  minor              |    Milestone:  unknown
Component:  mythtv             |      Version:  head   
 Severity:  medium             |   Resolution:         
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Comment (by anonymous):

 There's more than one bug being reported here.

 The "losing sound after changing channel" bug definitely lies in the
 cx88-alsa driver, and it affects sound output through ALSA when changing
 channels with tvtime as well.  This can be fixed by removing the
 cx88_stop_audio_dma/cx88_start_audio_dma in set_audio_finish in
 cx88-tvaudio.c.

 The issue of switching from digital to analog displaying snow isn't
 exactly a bug, it's a feature, which can be turned off by adding a file in
 /etc/modprobe.d containing "options dvb_core dvb_shutdown_timeout=0".

 The original "no sound on initial tuning" bug is one I haven't seen
 (because I don't use the analog audio out), but I would guess it's also a
 driver bug; it sounds like the multiplexer isn't being set properly when
 changing from digital to analog.  MythTV doesn't have direct control of
 that process, which is why I think it's probably not a MythTV bug.

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Ticket URL: <http://svn.mythtv.org/trac/ticket/1277#comment:21>
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