[mythtv-users] Problem with tuning DVB card - tzap, mplayer ok mythtv not

Simon Allcorn simon.allcorn at gmail.com
Sun Oct 23 12:14:25 EDT 2005


Hi,

I'm having trouble to get myth-tv to tune into a transport stream with
my DVB card (nova-t). If I use mythtv-setup and select Channel
editor/Scan for channels/Full scan I get the following:

...
2005-10-23 14:39:07.661 DVB#0 DVB SI Table Parser Started
2005-10-23 14:39:07.662 DVB#0 Using DVB card 0, with frontend LSI L64781 DVB-T.
2005-10-23 14:39:07.686 DVB#0 DVB Signal Monitor Starting
2005-10-23 14:39:08.728 DVB#0 DVB signal f0f | snr  0 | ber ffff | unc    0
...
2005-10-23 14:39:40.498 DVB#0 DVB signal e0e | snr  0 | ber ffff | unc    0
2005-10-23 14:39:41.477 DVB#0 DVB signal f0f | snr  0 | ber ffff | unc    0
2005-10-23 14:39:42.097 DVB#0 WARNING - Status: NO LOCK!

Which suggests that the signal strength is too weak, however both
mplayer and tzap tune and work fine - for every transport ! (see
below)

So I'm a little stumpped - I Can use my DVB card for all channels /
transports but myth-tv can't !

help ! - has anyone got any idea what's happening here ?

Cheers


Simon


mplayer and tzap tunning the dvb card ok:

%mplayer dvb://0@BBC\ ONE

and one tzap for each transport:

freevo szap # ./tzap -a 0  -c channels-conf/dvb-t/uk-Crystal-Palace 'BBC ONE'
using '/dev/dvb0.frontend0' and '/dev/dvb0.demux0'
reading channels from file 'channels-conf/dvb-t/uk-Crystal-Palace'
tuning to 505833333 Hz
video pid 0x0258, audio pid 0x0259
status 01 | signal 2e2e | snr 8c8c | ber 000003d9 | unc 00000000 |
status 1f | signal 2f2f | snr cdcd | ber 000003ed | unc 00000004 | FE_HAS_LOCK

freevo szap # ./tzap -a 0  -c channels-conf/dvb-t/uk-Crystal-Palace 'ITV NEWS'
using '/dev/dvb0.frontend0' and '/dev/dvb0.demux0'
reading channels from file 'channels-conf/dvb-t/uk-Crystal-Palace'
tuning to 481833333 Hz
video pid 0x0b22, audio pid 0x0b23
status 0d | signal 2e2e | snr acac | ber 000003d0 | unc 00000000 |
status 1f | signal 2b2b | snr 8080 | ber 0000a769 | unc 000000bd | FE_HAS_LOCK

freevo szap # ./tzap -a 0  -c channels-conf/dvb-t/uk-Crystal-Palace
'BBC Radio 1'
using '/dev/dvb0.frontend0' and '/dev/dvb0.demux0'
reading channels from file 'channels-conf/dvb-t/uk-Crystal-Palace'
tuning to 561833333 Hz
video pid 0x0000, audio pid 0x1842
status 0f | signal 2b2b | snr 7979 | ber 0000a5cf | unc 00000000 |
status 1f | signal 2a2a | snr 8f8f | ber 0000c8df | unc 000001f2 | FE_HAS_LOCK

freevo szap # ./tzap -a 0  -c channels-conf/dvb-t/uk-Crystal-Palace 'BBC FOUR'
using '/dev/dvb0.frontend0' and '/dev/dvb0.demux0'
reading channels from file 'channels-conf/dvb-t/uk-Crystal-Palace'
tuning to 529833333 Hz
video pid 0x00c9, audio pid 0x0191
status 01 | signal 2828 | snr 8e8e | ber 0000b6a0 | unc 00000000 |
status 1f | signal 2f2f | snr c4c4 | ber 00000b90 | unc 00000017 | FE_HAS_LOCK

freevo szap # ./tzap -a 0  -c channels-conf/dvb-t/uk-Crystal-Palace 'Sky News'
using '/dev/dvb0.frontend0' and '/dev/dvb0.demux0'
reading channels from file 'channels-conf/dvb-t/uk-Crystal-Palace'
tuning to 578166666 Hz
video pid 0x0065, audio pid 0x0066
status 0d | signal 2f2f | snr b1b1 | ber 00000a9b | unc 0000000d |
status 1f | signal 2525 | snr a3a3 | ber 00002ea4 | unc 00000016 | FE_HAS_LOCK

freevo szap # ./tzap -a 0  -c channels-conf/dvb-t/uk-Crystal-Palace 'Kiss'
using '/dev/dvb0.frontend0' and '/dev/dvb0.demux0'
reading channels from file 'channels-conf/dvb-t/uk-Crystal-Palace'
tuning to 537833333 Hz
video pid 0x0000, audio pid 0x044d
status 01 | signal 2323 | snr a2a2 | ber 00002b9a | unc 00000000 |
status 1f | signal 2d2d | snr cccc | ber 000001f2 | unc 00000008 | FE_HAS_LOCK

freevo szap #


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