[linux-dvb] Missing TV Channels upon scanning with FusionHDTV DVB-T Plus

Neil McBride neil at castinian.org
Fri Apr 7 10:57:00 CEST 2006


Hi all,

I've recently picked up one of the newer DVico FusionHDTV DVB-T Plus
cards, and after some assistance from Chris Pasco I managed to get the
lastest tree isntalled so that the card could load up properly. I get the
following coming up in dmesg output - I think it's okay.

-----
Linux video capture interface: v1.00
cx2388x dvb driver version 0.0.5 loaded
CORE cx88[0]: subsystem: 18ac:db10, board: DViCO FusionHDTV DVB-T Plus
[card=21,autodetected]
TV tuner 4 at 0x1fe, Radio tuner -1 at 0x1fe
ACPI: PCI Interrupt 0000:00:0c.2[A] -> Link [LNKA] -> GSI 10 (level, low)
-> IRQ 10
cx88[0]/2: found at 0000:00:0c.2, rev: 5, irq: 10, latency: 32, mmio:
0xeb000000
cx88[0]/2: cx2388x based dvb card
DVB: registering new adapter (cx88[0]).
DVB: registering frontend 0 (Zarlink ZL10353 DVB-T)...
-----

My problem now is that I don't seem to be able to pick up all available
stations.  I'm in Melbourne and managed to get a lock on all stations
under Windows with the software that comes with the card, and they're all
crystal clear.  But under Linux I can't seem to pick up SBS or Nine.

I've been trying with the dvbscan tool but to no avail.

with an input file to dbscan as below : -

------
# Australia / Melbourne (Mt Dandenong transmitters)
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
# ABC
#T 226500000 7MHz 3/4 NONE QAM64 8k 1/16 NONE
# Seven
#T 177500000 7MHz 2/3 NONE QAM64 8k 1/8 NONE
# Nine
T 191625000 7MHz 3/4 NONE QAM64 8k 1/16 NONE
# Ten
T 219500000 7MHz 3/4 NONE QAM64 8k 1/16 NONE
# SBS
T 536625000 7MHz 2/3 NONE QAM64 8k 1/8 NONE
-----

dvbscan gives me the following: -

------
# dvbscan au-Melbourne > test.conf
scanning au-Melbourne
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 191625000 1 3 9 3 1 1 0
initial transponder 219500000 1 3 9 3 1 1 0
initial transponder 536625000 1 2 9 3 1 2 0
>>> tune to:
191625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TR
ANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE
WARNING: filter timeout pid 0x0011
WARNING: filter timeout pid 0x0010
>>> tune to:
219500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TR
ANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE
Network Name 'Network TEN'
0x0000 0x0638: pmt_pid 0x0107 Ten Melbourne -- TEN HD (running)
0x0000 0x0639: pmt_pid 0x0108 Ten Melbourne -- TEN Guide (running)
0x0000 0x0637: pmt_pid 0x0106 Ten Melbourne -- TEN Guide (running)
0x0000 0x0635: pmt_pid 0x0100 Ten Melbourne -- TEN Digital (running)
0x0000 0x0631: pmt_pid 0x0101 Ten Melbourne -- TEN Digital (running)
0x0000 0x0632: pmt_pid 0x0102 Ten Melbourne -- TEN Digital 1 (running)
0x0000 0x0633: pmt_pid 0x0103 Ten Melbourne -- TEN Digital 2 (running)
0x0000 0x0634: pmt_pid 0x0104 Ten Melbourne -- TEN Digital 3 (running)
>>> tune to:
536625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TR
ANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE
WARNING: filter timeout pid 0x0011
WARNING: filter timeout pid 0x0010
dumping lists (17 services)
Done.
-----

Being new to the DVB I'm not really sure where to turn next.  Any ideas on
what may (or may not) be going on?

Thanks,

Neil.




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