[ATrpms-users] FC5, mythtv, saa7134 sound

[John Pilkington]

Axel Thimm wrote:
> On Sun, Jun 18, 2006 at 11:11:35AM +0100, John Pilkington wrote:
>> I gave up trying to resurrect my RH9-to-FC5 upgrade and did a clean FC5 
>> install last week.  I still have FC3.
>>
>> I'm using kernel 2.6.16-1.2133_FC5 at i686
>>
>> There is no sound in FC5 mythtv LiveTV.
> 
> Can you check whether the sound is amiss during the capturing or the
> playback? E.g. instead of live tv schedule a recording and check on
> another known to work system whether the recording has sound.

There were other aspects of myth that I clearly hadn't got set up right 
on FC5; I'm getting closer now, but still no sound on new myth 
recordings.  FC5 mplayer gives sound from FC3 myth files, no sound from 
FC5 myth.  I haven't yet worked out a way to get old FC3 recordings 
known to the FC5 database, so can't replay through myth itself.

I thought the problem arose because v4l was muted internally, not 
directly accessible to the various alsa tools, and my query aimed to 
find out if this had changed.

> 
> Other checks you can perform are running mplayer on a known media and
> see whether mplayer & alsa (playback) work. Also try manually to
> perform a capture from your card to outrule any mythtv issues.
> 
>> This used to be cured by using 'v4lctl sound mute off', but that was
>> part of xawtv and is not in the FC5 repo.  (The last few times I
>> tried to view using xawtv in FC3 I had system crashes, but the
>> unmuting still worked.)
> 
> There is alsamixer and alsaunmute, did you try these?
> 
>> 'radio' was in the same package, and works in FC3, and I don't see a 
>> replacement.
>>
>> Hermann wrote on 29 May:
>>
>> "I didn't touch mythtv since ages, but I don't see v4l1 ioctl problems
>> with the v4l1-compat layer enabled and using saa7134-oss, which will go
>> away too to be replaced by saa7134-alsa. The mute trouble in the saa7134
>> v4l-compat is unfortunately also still there."
>>
>> Is there a workaround known or in sight?
>>
>> TIA
>>
>> John Pilkington
>