[linux-dvb] Re: Problem with dtv_scan

[Rolf Hakenes <hakenes@hippomi.de>]

Jean-Claude REPETTO schrieb:
> 
> I also have tuning problems with my Hauppauge card, rev 1.3. The driver is
> from CVS (16-06), and the DTV version is 1.1. I am using a LFS installation
> with Linux kernel 2.4.4 on a Pentium 200 MMX with 64Mb RAM.
> I have used the option -v4 to display more messages.
> Some transponders can't be synchronized, but not always the same ones.
> 
> 20/06/01 01:51.11: dtv_scan started
> 20/06/01 01:51.11: outputfile available_channels.dcl opened
> 20/06/01 01:51.11: Device 0 switched on
> 20/06/01 01:51.11: could not tune to 10788000/V/22000
> 20/06/01 01:51.11: could not tune transponder 10788000/V/22000
> 20/06/01 01:51.11: frequency adjusted from 10877000 to 1136750000
> 20/06/01 01:51.11: scanning 10877000/V/22000
> 20/06/01 01:51.12: InpDev Scan GetSDT
> 20/06/01 01:51.12: SDT acquisition finished
> 20/06/01 01:51.12: InpDev Scan GetPAT
> 20/06/01 01:51.12: PAT acquisition finished, 5 programs to scan
> 20/06/01 01:51.12: Setup PMT Filter on 101/7461
> 20/06/01 01:51.12: InpDev Scan GetTVPMT
> 20/06/01 01:51.12: Setup PMT Filter on 102/7462
> 20/06/01 01:51.12: InpDev Scan GetTVPMT
> 20/06/01 01:51.12: Setup PMT Filter on 100/7460
> 20/06/01 01:51.12: InpDev Scan GetTVPMT
> 20/06/01 01:51.12: Setup PMT Filter on 7451/7451
> 20/06/01 01:51.12: InpDev Scan GetTVPMT
> 20/06/01 01:51.12: PMT acquisition finished
> 20/06/01 01:51.12: frequency adjusted from 11720000 to 1130600000
> 20/06/01 01:51.12: scanning 11720000/H/27500
> 20/06/01 01:51.12: InpDev Scan GetSDT
> 20/06/01 01:51.12: SDT acquisition finished
> 20/06/01 01:51.13: InpDev Scan GetPAT
> 20/06/01 01:51.13: PAT acquisition finished, 27 programs to scan
> ..................
> 20/06/01 01:53.15: could not tune to 12032000/H/27500
> 20/06/01 01:53.15: could not tune transponder 12032000/H/27500
> 20/06/01 01:53.17: could not tune to 12051000/V/27500
> 20/06/01 01:53.17: could not tune transponder 12051000/V/27500
> 20/06/01 01:53.19: could not tune to 12070000/H/27500
> 20/06/01 01:53.19: could not tune transponder 12070000/H/27500
> 20/06/01 01:53.21: could not tune to 12090000/V/27500
> 20/06/01 01:53.21: could not tune transponder 12090000/V/27500
> 20/06/01 01:53.23: could not tune to 12110000/H/27500
> 20/06/01 01:53.23: could not tune transponder 12110000/H/27500
> 20/06/01 01:53.25: could not tune to 12129000/V/27500
> 20/06/01 01:53.25: could not tune transponder 12129000/V/27500
> 20/06/01 01:53.27: could not tune to 12148000/H/27500
> 20/06/01 01:53.27: could not tune transponder 12148000/H/27500
> 20/06/01 01:53.29: could not tune to 12168000/V/27500
> 20/06/01 01:53.29: could not tune transponder 12168000/V/27500
> 20/06/01 01:53.31: could not tune to 12188000/H/27500
> 20/06/01 01:53.31: could not tune transponder 12188000/H/27500
> 20/06/01 01:53.33: could not tune to 12207000/V/27500
> 20/06/01 01:53.33: could not tune transponder 12207000/V/27500
> 20/06/01 01:53.35: could not tune to 12226000/H/27500
> 20/06/01 01:53.35: could not tune transponder 12226000/H/27500
> 20/06/01 01:53.37: could not tune to 12246000/V/27500
> 20/06/01 01:53.37: could not tune transponder 12246000/V/27500
> 20/06/01 01:53.39: could not tune to 12266000/H/27500
> 20/06/01 01:53.39: could not tune transponder 12266000/H/27500
> 20/06/01 01:53.41: could not tune to 12285000/V/27500
> 20/06/01 01:53.41: could not tune transponder 12285000/V/27500
> 20/06/01 01:53.43: could not tune to 12304000/H/27500
> 20/06/01 01:53.43: could not tune transponder 12304000/H/27500
> 20/06/01 01:53.45: could not tune to 12324000/V/27500
> 20/06/01 01:53.45: could not tune transponder 12324000/V/27500
> 20/06/01 01:53.47: could not tune to 12344000/H/27500
> 20/06/01 01:53.47: could not tune transponder 12344000/H/27500
> 20/06/01 01:53.49: could not tune to 12363000/V/27500
> 20/06/01 01:53.49: could not tune transponder 12363000/V/27500
> 20/06/01 01:53.51: could not tune to 12382000/H/27500
> 20/06/01 01:53.51: could not tune transponder 12382000/H/27500
> 20/06/01 01:53.53: could not tune to 12402000/V/27500
> 20/06/01 01:53.53: could not tune transponder 12402000/V/27500
> 20/06/01 01:53.55: could not tune to 12441000/V/27500
> 20/06/01 01:53.55: could not tune transponder 12441000/V/27500
> 20/06/01 01:53.57: could not tune to 12480000/V/27500
> 20/06/01 01:53.57: could not tune transponder 12480000/V/27500
> 20/06/01 01:53.57: frequency adjusted from 12515000 to 1925600000
> 20/06/01 01:53.57: scanning 12515000/H/22000
> 20/06/01 01:53.59: InpDev Scan GetSDT
> 20/06/01 01:53.59: SDT acquisition finished
> 20/06/01 01:53.59: InpDev Scan GetPAT
> 20/06/01 01:53.59: PAT acquisition finished, 17 programs to scan
> ...................
> 
Hi Jean-Claude,

that looks to me, as if your LNB has problems with some of the higher
frequencies (the ones above the LnbLsof frequency). One reason could be your
satellite connection (cables, multiswitch etc.), or the LNB itself, maybe the
adjustment of the dish ???...Doesn't look to me as if that should be a software
problem (neither dtv nor driver), because there is no difference in handling the
tuned frequencies, beside the LNB settings. If you need other setting than the
default ones (LnbLsof = 11700, LnbLowFreq = 9750, LnbFreqHigh = 10600), you can
change global options for this in the configuration file (look at the template),
or doing a diseqc setup...

> Also, the displayed value of the adjusted is frequency is wrong.
> 
Thats true, but only a minor bug, as it is not used for any tuning procedure.
The printed value is just copied from the event the driver returns (there is a
little bit confusion to me about the way, the driver handles frequencies...some
are given in kHz, some in Hz, but returned as kHz...)

> Today, (22/6) I have downloaded the latest CVS, and it is worse.
> dtv_scan hangs always at the same point :
> 
> 22/06/01 16:58.40: frequency adjusted from 10877000 to 1136750000
> 22/06/01 16:58.40: scanning 10877000/V/22000
> 22/06/01 16:58.40: InpDev Scan GetSDT
> 22/06/01 16:58.40: SDT acquisition finished
> 22/06/01 16:58.40: InpDev Scan GetPAT
> 22/06/01 16:58.40: PAT acquisition finished, 5 programs to scan
> 22/06/01 16:58.40: Setup PMT Filter on 101/7461
> 22/06/01 16:58.40: InpDev Scan GetTVPMT
> 22/06/01 16:58.40: Setup PMT Filter on 102/7462
> 22/06/01 16:58.40: InpDev Scan GetTVPMT
> 22/06/01 16:58.40: Setup PMT Filter on 100/7460
> 22/06/01 16:58.40: InpDev Scan GetTVPMT
> 22/06/01 16:58.40: Setup PMT Filter on 7451/7451
> 
> Any idea ?
> 
Not yet, but I will try to install the newest driver version tomorrow...

Regards,

Rolf


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