On Sat, 2010-02-27 at 14:45 -0500, Darren Blaber wrote:
> Devin Heitmueller wrote:
> > On Sat, Feb 27, 2010 at 3:41 AM, Darren <[email protected]> wrote:
> >
> >> Hello,
> >>
> >> I recently bought a HVR-1600 PCI card, and after playing with it for quite
> >> a
> >> while, it seems I have come to the conclusion that audio does not work
> >> unless I start in windows first, then reboot back into linux. I am using
> >> the
> >>
> >> latest cx18 driver from http://linuxtv.org/hg/v4l-dvb/ . Its almost like
> >> the
> >> card needs windows to initialize before it will work in linux. I believe
> >> to
> >> be using the latest firmware, I grabbed it from
> >>
> >> http://linuxtv.org/downloads/firmware/v4l-cx23418-apu.fw [along with the
> >> rest of firmware files]. Is there anything I can do to debug this problem?
> >>
> >> Is it possible that the card has a hardware issue?
> >>
> >
> > Hello Darren,
> >
> > That seems a little suspicious, since I added the raw analog audio
> > support and never once had the card booted into Windows.
> >
> > Are you talking about raw audio (either the /dev/video24 device or via
> > ALSA)? Or are you capturing MPEG video which contains audio? Also,
> > which input are you using? The tuner input? The S-video/composite
> > input?
> >
> > Devin
> >
> >
> I am capturing MPEG video that contains the audio, I am using the tuner
> input, grabbing everything from /dev/video0.
When running a capture, please check the output of
$ v4l2-ctl --log-status
looking especially at the lines starting with
cx18-0 843:
as these will show you the state of the A/V decoder and digitizer. If
the audio microcontroller can't dtetct the audio standard, it will stay
muted and the log will show you that.
I would be interested in see the dmesg or /var/log/messages output
showing if all three firmware images loaded properly.
So maybe try this:
1. blacklist the cx18 module in /etc/modprobe.d/balcklist (or whereever)
2. Shutdown your machine for 30 seconds or so - I want the memory
holding the firmware to be cleared.
3. Restart into linux.
4. After boot up has settled, as root:
# modprobe cx18 debug=255
And look in /var/log/messages for firmware loading properly.
Regards,
Andy
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