So I got the camcorder out, plugged it into the composit input and the picture from it looks great. As you said, that points at the tuner. A couple searches showed there is all kinds of discussion about bad uscable table entries in mythtv. But I couldn't find anything truely useful. I tried modifying the values in /sys/class/pvrusb2/*/ctl_frequency/cur_value, but didn't really see a positive difference ever.
Any Ideas? Stan On Tue, Mar 31, 2009 at 6:26 PM, Mike Isely <[email protected]> wrote: > On Tue, 31 Mar 2009, stan schultz wrote: > > > Yes I was using the NTSC-M. I am in Oregon and recieve my cable service > > from Wave Broadband (aka wbcable.com). I have tried using Mythtv and > got > > the same results. I haven't tried just trying over the air, but that may > be > > worth trying even though we don't have the best over the air signal. Of > > course, as I got good reception using Windows and Cable I don't expect an > > improvment changing to Linux and over the air. > > Damn. Guess I lost my bet. Well there's still the question of > frequency table. MythTV *should* be getting that right on its own > provided you configured an video source that is "cable". If you did > that, then I can't explain the absolutely crappy results you are > getting. > > It would be useful to figure out if the crappy video is due to tuning or > some other aspect of the video pipeline. There's a way to tell this > apart: Use the composite or s-video input, which doesn't need the RF > stage of the pipeline. If you have a DVD player, VCR, camcorder, or > other source of source, jack that into the device, use sysfs to switch > that input (e.g. "echo composite > /sys/class/pvrusb2/*/ctl_input/cur_val") > then run mplayer on the device node and see if you get a clear picture. > If you do then you've proven that this is a tuning issue. If the > picture is still crap, then it's not tuning but something else totally > bizarre going on. > > -Mike > > -- > > Mike Isely > isely @ pobox (dot) com > PGP: 03 54 43 4D 75 E5 CC 92 71 16 01 E2 B5 F5 C1 E8 > _______________________________________________ > pvrusb2 mailing list > [email protected] > http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2 > _______________________________________________ pvrusb2 mailing list [email protected] http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2
