<br><br><div class="gmail_quote">On Tue, Apr 14, 2009 at 10:12 AM, Paul Gardiner <span dir="ltr"><<a href="mailto:lists@glidos.net">lists@glidos.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="im">Jeppe Madsen wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi,<br>
<br>
I've been running a mythtv setup for quite a while, but have always<br>
had mixed results with the quality of the recordings. I'm using a Nova<br>
T-500 dual tuner DVB-t card to record standard SD channels.<br>
<br>
The problem I'm seeing is that many recordings have very bad mpeg<br>
artifacts, with high pitching noise etc. I've looked at the logs at<br>
one of the recordings, and I see a lot of this:<br>
</blockquote>
<br></div>
Just checking: the Nova T-500 driver needs<div class="im"><br>
<br>
options dvb-usb_dib0700 force_lna_activation=1<br>
<br></div>
to turn on the low noise amplifier. You do have that set?<br>
<br>
On SuSE 11.1, I have it in etc/modprobe.conf.local. Varies<br>
between distrobutions.</blockquote><div><br>I have this in /etc/modprobe.d/options (Debian Etch)<br><br>options dvb_usb disable_rc_polling=1<br>options <span class="il">dvb</span>-usb-dib0700 force_lna_activation=1 debug=2<br>
<br>I think the differences in module naming shouldn't matter? But thinking about I don't seem to get any debug output either so maybe I should try fiddling with that...<br><br>/Jeppe<br></div></div><br>