Ville Vehvilainen wrote: > Hi, > > I'm unable to get any data out of a new TechnoTrend C1500 budget card > (SAA7146 w/ > STV0297). While it seems to successfully tune, czap reports a > suspicuously low s/n ratio > (around 3000-4000 decimal, compared to a older C1.0 budget card which > works fine and > gets around 60000). And no video, audio, or anything else comes out. > The "scan" utility > won't find any services either. > > Here's a sample czap output: > > ~> czap -r -c channels.conf MTV3 > using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' > reading channels from file '.mplayer/channels.conf' > 15 MTV3:346000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_128:305:561:49 > 15 MTV3: f 346000000, s 6900000, i 2, fec 0, qam 4, v 0x131, a 0x231 > status 1f | signal 033a | snr 0ee2 | ber 00000000 | unc 00000000 | FE_HAS_LOCK > status 1f | signal 0339 | snr 0dea | ber 00000000 | unc 00000000 | FE_HAS_LOCK I get about same numbers but for me the picture is perfect. Only problem is slow tuning. From czap command to FE_HAS_LOCK it usually takes more than 30 seconds. I had to increase timeouts to get it tune. How long it takes for you to get tuned? I get picture for example tuning with czap -r and: xine stdin://mpeg2 < /dev/dvb/adapter0/dvr0 > This is on Linux 2.6.13-rc6 and dvb-kernel CVS checkout from Monday. The same > behaviour occurs whether or not I patch the stv0297 driver to disable > corner detection for > QAM128, as described a couple of weeks ago on this list. For me the tuning is even more slower without that patch. > > I'm perfectly willing to provide any debug data I can and test any patches. Me too.
