I purchased a pcHDTV 5500 card and installed it into an
established SD system. As an SD system, it was functioning perfectly. I decided
to upgrade the system to FC6 while I was taking it down to install the HD card.
I successfully got the system working up to the previous level and got the HD
input functioning and channels mapped. However, I have scoured google and I
have reached an impasse on the following issues which as far as I can tell may
not be resolved. Most of the relevant threads seem to be abandoned in the end
with no resolution.
<p>My system specs are:<br>NF7-S (onboard sound with optical out),
Athlon XP 3200+,
512MB RAM, GF4 MX 420, Hauppauge PVR150 MCE, pcHDTV 5500, FC6
kernel-2.6.18-1.2868.fc6.i686,
ALSA 1.0.13, nvidia 9629, connected to a 32" 1360x768 LCD monitor by
VGA cable, all the rest of software is the latest version from yum
installed per Jarod's howto.</p>
<p>1) <span><span><span style="font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span></span>I have been unable to output Dolby Digital sound
through my SPDIF. I can output digital sound however only digital stereo. If I
attempt to output 48kHz Dolby Digital through the SPDIF, I get silence. If I
attempt to output 44.1kHz Dolby Digital sound, I get noise (as expected). In
either case, my amplifier never identifies the input as Dolby Digital. This
problem is not limited to Myth and I have observed it in mplayer using an AC3
sound file as well. I am using the asound.conf from here:<span> </span><a href="http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound
</a>
. My default is the digital-hw connection and I modified it to be device 2 as
appropriate for my SPDIF connection.</p>
<p>When attempting to output Dolby Digital
sound in either mplayer or Myth, I receive no indication that it has
failed
other than the apparent lack of sound. I have tested the source AC3
file on a
different computer and verified that it is indeed a valid sound file.
If I use software AC3 decoding, I get a functioning digital stereo
output. Here is
a sample mplayer run: <a href="http://pastebin.ca/296144" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://pastebin.ca/296144</a> . I also have modified iecset to both audio and
non-audio in an attempt to get it working but had no success with that.<br></p><p style="text-indent: -0.25in;">2)<br><span>
<span>2)<span style="font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span></span>My HD playback is stuttering and unwatchable. I
believe I have successfully enabled XvMC (and have grayscale OSD ) and
that the
problem lies on the sound output as supported by the output from
mythfrontend
but I am uncertain: <a href="http://pastebin.ca/296145" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://pastebin.ca/296145</a> . I have no vsync options marked (in Myth
settings or nvidia-settings). I have played with audio buffering and
deinterlacing options. <br></p>I
have modified options per every web page I can find and I am completely
stumped and would appreciate any help. I would be glad to provide any
additional information as requested. Thanks.<br><br><br>