| Subject: | dvbt-scan problems in Finland |
| Date: | Fri, 07 Feb 2014 09:20:36 +0100 |
| To: | bug-Linux-DVB-DVBT [...] rt.cpan.org |
| From: | Jan Wychowaniak <darkhleb [...] poczta.fm> |
Hello.
I have problems with scanning for channels with "dvbt-scan" in Finland
today.
I did "sudo dvbt-scan FI" on a computer in Finland - found nothing.
The on-screen output was:
Chans
Found 0 channels (0 tv, 0 other)
Passed checks
Failed to find any channels
After doing "sudo dvbt-scan -debug 15 -verbose 15 FI" it found something:
Chans
3 : MTV3 8193-49 tv 570000000 Hz ...ok
4 : Nelonen 8193-65 tv 570000000 Hz ...ok
6 : Sub 8193-97 tv 570000000 Hz ...ok
9 : Liv 8193-177 tv 570000000 Hz ...ok
10 : TV5 12289-161 tv 578000000 Hz ...ok
14 : Iskelmä/Harju&Pöntinen 12289-817 tv 578000000 Hz ...ok
Found 6 channels (6 tv, 0 other)
Passed checks
I did some more consecutive tests, with logging this time (log files
attached):
rm -r $HOME/.tv
sudo rm -r /etc/dvb/
sudo dvbt-scan -debug 15 -verbose 15 FI
Show quoted text
>scan_debug15-verbose15_1.log 2>&1
sudo rm -r /etc/dvb/
sudo dvbt-scan -debug 15 -verbose 15 FI
Show quoted text >scan_debug15-verbose15_2.log 2>&1
sudo rm -r /etc/dvb/
sudo dvbt-scan -debug 15 -verbose 15 FI
Show quoted text >scan_debug15-verbose15_3.log 2>&1
sudo rm -r /etc/dvb/
sudo dvbt-scan -debug 15 -verbose 15 FI
Show quoted text >scan_debug15-verbose15_4.log 2>&1
sudo rm -r /etc/dvb/
sudo dvbt-scan FI >scan_debug0-verbose0.log 2>&1
The result in terms of detected channels varies between runs, maybe with
an exception to the no-debug-&-no-verbose attempts, which seem
persistent in finding nothing.
Then I tried some scanning using the frequency files for Finland. The
results are found in the "file-based-scans" folder.
Here is how I produced the results:
for ff in /usr/share/dvb/dvb-t/fi-*; do rm -r ~/.tv; dvbt-scan $ff
Show quoted text >scan.$(basename $ff).log 2>&1 ; done
I get mostly no channels from that, just sometimes something.
This is a fresh Linux::DVB::DVBT installation on a fresh system.
Then I did one more thing. I removed /etc/dvb and $HOME/.tv, because I
remembered using Linux::DVB::DVBT a year ago (Jan 16 2013), on a
different PC. So I got /etc/dvb from there (produced with a
Linux::DVB::DVBT installation from around that time) and just copied it
onto this new system.
"dvbt-chans" on the new system:
Channel List
============
-----+--------------------------------+--------------+---------+---------------------------------------------------------
LCN | Channel Name | TSID-PNR | Type | PIDs
-----+--------------------------------+--------------+---------+---------------------------------------------------------
1 | Yle Puhe | 4097-4369 | radio |
audio=905 (fin:905)
1 | Yle TV1 | 4097-17 | tv |
video=512 audio=650 (fin:650) teletext=5000 subtitle=1027 ()
2 | Yle TV2 | 4097-33 | tv |
video=513 audio=660 (fin:660) teletext=1340 subtitle=2027 ()
3 | Yle Klassinen | 4097-4401 | radio |
audio=901 (fin:901)
3 | MTV3 | 8193-49 | tv |
video=305 audio=561 (fin:561 dut:562) teletext=5010 subtitle=1073 ()
4 | Nelonen | 8193-65 | tv |
video=512 audio=650 (fin:650 dut:658) teletext=5012
5 | Yle Fem | 4097-81 | tv |
video=514 audio=670 (swe:670) teletext=5001 subtitle=3027 ()
5 | Yle Mondo | 4097-4433 | radio |
audio=903 (fin:903)
6 | Sub | 8193-97 | tv |
video=353 audio=609 (fin:609) teletext=5011
7 | Yle Teema | 4097-113 | tv |
video=516 audio=690 (fin:690) teletext=1341 subtitle=4027 ()
9 | Liv | 8193-177 | tv |
video=516 audio=690 (fin:690) teletext=1340
10 | TV5 | 12289-161 | tv |
video=513 audio=660 (fin:660)
12 | FOX | 4097-529 | tv |
video=520 audio=620 (fin:620 dut:621)
13 | AVA | 4097-155 | tv |
video=526 audio=726 (fin:726) teletext=5005 subtitle=1060 ()
14 | Iskelmä/Harju&Pöntinen | 12289-817 | tv |
video=512 audio=650 (fin:650)
-----+--------------------------------+--------------+---------+---------------------------------------------------------
Found 15 channels (12 tv, 3 other)
which is what I expected to get from the scans today.
After placing this old scan data in the new system, I went straight to
play with "dvbt-record" and "dvbt-multirec", and they worked.
So, to me it looks like the recent dvbt-scan is not working properly.
New PC details:
Linux::DVB::DVBT 2.19
perl v5.14.2
uname -a: Linux 3.8.0-35-generic #52~precise1-Ubuntu SMP Thu Jan 30
17:24:40 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Old PC details:
Linux::DVB::DVBT 2.15
perl v5.14.2
uname -a: Linux 3.2.0-30-generic #48-Ubuntu SMP Fri Aug 24 16:52:48
UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Thank you.
--
-
Kind regards,
JW
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