[mythtv-users] ATI TV Wonder - no sound from capture card
kanetse at hotmail.com
Mon Dec 20 18:45:02 UTC 2004
I have an ATi TV Wonder PCI installed in a dual Athlon 1800MP machine.
It was running Fedora Core 3 and working fine with the sound being
captured by the line-in on the motherboard's sound card.
However, it was only a slave backend; and I needed it to become the
master backend, so I changed upgraded the HDDs and added in a PVR-250.
I also subsequently reinstalled a clean copy of Fedora Core 3,
essentially following Jarod's guide.
Now, there is no audio coming out of the ATI TV Wonder card. I tried
plugging a set of speakers directly into the ATI's line out (where you
would plug in the patch cable) and heard nothing.
My initial guess is that there is a problem with the msp3400.o because
the PVR-250 loads its own copy of the module.
As a possible alternative solution, I tried to use the Alsa module
snd_bt87x to capture (the ATi TV Wonder PCI *does* have a working
capture card), but whenever the card is capturing, my /var/log/messages
is flooded with "kernel: FIFO overrun" messages. I'm sure this is
related to the snd_bt87x, because when I put snd_bt87x on my
/etc/hotplug/blacklist file and reboot, the messages go away (but no
sound). Any RedHat or FC3 experts know how to solve this? From my
reading of the snd_bt87x source code; this error message is produced
when there is "Bus Access Latency"; but I don't know what this means or
how I can fix it.
My questions are:
1) How do I get my TV Wonder to output sound on it's line out jack?
2) How do I solve this "FIFO overrun" issue with snd_bt87x?
3) Does anyone have an ATi TV Wonder with a PVR-250 in an Athlon SMP
machine running FC3 working? Is it possible?
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