[mythtv-users] Occasional missing audio from recordings

[Tako Schotanus]

jose rubio wrote:

>On Tue, 2003-12-02 at 20:44, Doug Scoular wrote:
>  
>
>>Hi All,
>>    I have a Shuttle SB61G2 with a Hauppauge PVR-350 and
>>    NVidia GeForce 4 440MX for TV-out. I'm using gentoo 1.4
>>    with a 2.4.21 kernel and the latest IVTV drivers/firmware
>>    and MythTV 0.12.
>>
>>    MythTV works wonderfully well on the above setup with
>>    one remaining issue.
>>
>>    Occasionally I get no audio on a scheduled recording. This
>>    has been the case on MythTV 0.11 and 0.12. Most of
>>    the time the loss of audio on a scheduled recording causes
>>    live TV to also lose audio, however this is not always the
>>    case. Sometimes the loss of audio is limited to the
>>    one scheduled recording, subsequent recordings being
>>    fine and live tv unaffected.
>>
>>    If I lose audio on live tv I can fix it by killing mythbackend
>>    and restarting it. This always fixes the problem... which indicates
>>    that the IVTV driver has no problem re-initialising.
>>
>>    I had thought this might be due to some KDE app holding
>>    open the dsp device but I've disabled all arts binaries
>>    by making them non-executable. I've also tried running
>>    under twm, but all to no avail. There's nothing in the
>>    mythbackend logs to indicate a problem.
>>
>>    I haven't seen anyone else mention this problem on the
>>    list so I'm stumped.
>>
>>    I do get about less than a second of white noise at
>>    the start of playback on these "no audio" recordings.
>>
>>    Any ideas much appreciated...
>>
>>    Doug
>>
>>    
>>
>It happens, although I've never seen it happen during live tv.  I
>believe it's an ivtv problem, just waiting for the newest driver to come
>out and see if that fixes it.
>
>
>-jose-
>  
>
Restarting the backend doesn't do it for me, I have to do a "modprobe -r 
ivtv/modprobe ivtv" before I get my sound back.
But I agree with jose that it is most likely an ivtv problem, they've 
been very busy lately and there are several known problems with the 
current version in CVS.

-Tako
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