[mythtv-users] knoppixmyth, HDHomeRun, and QAM?

Steve MacLaren scram69 at gmail.com
Sun Nov 18 17:13:14 UTC 2007

On Nov 18, 2007 8:56 AM, Scott Ehrlich <scott at mit.edu> wrote:
> I just installed the latest KnoppixMyth on my laptop, and all looks ok for
> now, but I'm having troubles getting dvb-utils' scan to read from my HDHR
> box for QAM capture.
> I found
> http://www.mythtv.org/wiki/index.php/Adding_QAM_Channels_For_HDTV_Tuner_Cards
> which, thus far, is helpful. When I run the scan as shown, I get
> root at mythtv:/usr/bin# scan
> atsc/us-Cable-Standard-center-frequencies-QAM256
> scanning atsc/us-Cable-Standard-center-frequencies-QAM256
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> main:2247: FATAL: failed to open '/dev/dvb/adapter0/frontend0': 2 No such
> file or directory
> root at mythtv:/usr/bin#
> What is the correct syntax for QAM on the HDHR?
> Thanks.
> Scott
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I had success simply using the QAM scanner in mythtv-setup with the
HDHR.  There is a how-to here:
It's for ubuntu, but it walks you thru scanning via the setup screens.

After the scan, I used phpmyadmin to edit my channels database to
remove the encrypted channels from my cableco.

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