[mythtv-users] Bad DVB-T picture quality on Nova T-500

[Jeppe Madsen]

On Tue, Apr 14, 2009 at 10:12 AM, Paul Gardiner <lists at glidos.net> wrote:

> Jeppe Madsen wrote:
>
>> Hi,
>>
>> I've been running a mythtv setup for quite a while, but have always
>> had mixed results with the quality of the recordings. I'm using a Nova
>> T-500 dual tuner DVB-t card to record standard SD channels.
>>
>> The problem I'm seeing is that many recordings have very bad mpeg
>> artifacts, with high pitching noise etc. I've looked at the logs at
>> one of the recordings, and I see a lot of this:
>>
>
> Just checking: the Nova T-500 driver needs
>
>  options dvb-usb_dib0700 force_lna_activation=1
>
> to turn on the low noise amplifier. You do have that set?
>
> On SuSE 11.1, I have it in etc/modprobe.conf.local. Varies
> between distrobutions.


I have this in /etc/modprobe.d/options (Debian Etch)

options dvb_usb disable_rc_polling=1
options dvb-usb-dib0700 force_lna_activation=1 debug=2

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...

/Jeppe
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