[linux-dvb] Unable to lock drivers with DVB 1.1.1 drivers and TT DVB-C

To: linux-dvb@linuxtv.org
Subject: [linux-dvb] Unable to lock drivers with DVB 1.1.1 drivers and TT DVB-C
From: lamikr <lamikr@cc.jyu.fi>
Date: Tue, 09 Mar 2004 22:28:00 +0200
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Hi

I have problems for getting channels locked on Linux and I hope somebody could help me.
(I have now fight with this for three days)
I have full featured TT DVB-C 2.1 card and I am able to seen channels on windows.
For viewing channels on Linux I have loaded following apps and drivers.

dvb drivers 1.1.1
dvbtune-0.5
dvb apps 1.1.0

I have been able to search channels with dvbtune but after creating config file for czap I have
not been able to get any of the channels locked. For watching TV I have tried following steps after booting into Linux.

[root]#modprobe dvb-ttpci (this command creates /sys/class/firmware directory for me)
[root]#cd linuxtv-dvb-1.1.1/build-2.6 [root]#./insmod.sh load
Inserting DVB modules into kernel
FATAL: Module input not found.
insmod: error inserting './dvb-core.ko': -1 File exists
insmod: error inserting './saa7146.ko': -1 File exists
insmod: error inserting './saa7146_vv.ko': -1 File exists
insmod: error inserting './ttpci-eeprom.ko': -1 File exists
insmod: error inserting './dvb-ttpci.ko': -1 File exists
[root]#./dvbtune -f 426000000 -s 6900 -qam 128 -I 1 -i > 426.xml
Using DVB card "VES1820 based DVB-C frontend"
tuning DVB-C to 426000000, srate=6900000
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Event: Frequency: 436573047
SymbolRate: 6900000
FEC_inner: 0

Bit error rate: 168480
Signal strength: 60395
SNR: 60909
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC

Now I create "channels.conf-dvbc-jkl" by using dvbtune information from the xml.
If I create for example a configuration which contains following information for one channel

subtv:42600000:INVERSION_ON:6900000:AUTO:QAM_128:353:609

and try to lock the channel with czap, the locking will not work and will instead just show following

[root]#./czap -c channels.conf-dvbc-jkl subtv
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
reading channels from file 'channels.conf-dvbc-jkl'
1 subtv:42600000:INVERSION_ON:6900000:AUTO:QAM_128:353:609
1 subtv: f 42600000, s 6900000, i 1, fec -1, qam 4, v 0x161, a 0x261
status 00 | signal b8b8 | snr c9c9 | ber 00000032 | unc ffffffff |
status 00 | signal b9b9 | snr c9c9 | ber 00000032 | unc ffffffff |
status 00 | signal b9b9 | snr caca | ber 00000032 | unc ffffffff |
status 00 | signal b9b9 | snr c9c9 | ber 00000032 | unc ffffffff |
status 00 | signal b9b9 | snr c9c9 | ber 00000032 | unc ffffffff |
status 00 | signal b9b9 | snr c6c6 | ber 00000032 | unc ffffffff |
status 00 | signal b9b9 | snr c7c7 | ber 00000032 | unc ffffffff |
status 00 | signal baba | snr c6c6 | ber 00000032 | unc ffffffff |
...

Here is the xml I have generated with dvbtune

<transponder type="C" freq="426000000" srate="6900000">
<service id="49" ca="0">
<description tag="0x48" type="1" provider_name="MTV Oy" service_name="MTV3 D" />
<stream type="2" pid="305">
<stream_id id="0" />
</stream>
<stream type="4" pid="561">
<iso_639 language="fin" type="0" />
<stream_id id="138" />
</stream>
<stream type="6" pid="817">
<teletext tag="0x56">
<teletext_info lang="fin" type="1" page="100" />
</teletext>
<stream_id id="64" />
</stream>
<stream type="6" pid="1073">
<subtitling_descriptor tag="0x59">
<subtitle_stream lang="fin" type="16" composition_page_id="0001" ancillary_page_id="0001" />
</subtitling_descriptor>
</stream>
</service>
<service id="65" ca="0">
<description tag="0x48" type="1" provider_name="Ruutunelonen Oy" service_name="Nelonen D" />
<stream type="2" pid="512">
<stream_id id="0" />
</stream>
<stream type="4" pid="650">
<iso_639 language="fin" type="0" />
<stream_id id="138" />
</stream>
<stream type="6" pid="576">
<teletext tag="0x56">
<teletext_info lang="fin" type="1" page="100" />
</teletext>
<stream_id id="64" />
</stream>
<stream type="6" pid="2001">
<subtitling_descriptor tag="0x59">
<subtitle_stream lang="fin" type="17" composition_page_id="0001" ancillary_page_id="0032" />
</subtitling_descriptor>
</stream>
<stream type="6" pid="2002">
<subtitling_descriptor tag="0x59">
<subtitle_stream lang="swe" type="17" composition_page_id="0001" ancillary_page_id="0032" />
</subtitling_descriptor>
</stream>
</service>
<service id="97" ca="0">
<description tag="0x48" type="1" provider_name="Citytv Oy" service_name="subtv" />
<stream type="2" pid="353">
<stream_id id="1" />
</stream>
<stream type="4" pid="609">
<iso_639 language="fin" type="0" />
<stream_id id="148" />
</stream>
<stream type="6" pid="865">
<teletext tag="0x56">
<teletext_info lang="fin" type="1" page="100" />
</teletext>
<stream_id id="65" />
</stream>
<stream type="6" pid="1121">
<subtitling_descriptor tag="0x59">
<subtitle_stream lang="fin" type="16" composition_page_id="0004" ancillary_page_id="0004" />
</subtitling_descriptor>
</stream>
</service>
<service id="161" ca="0">
<description tag="0x48" type="1" provider_name="Suomen urheilutelevisio" service_name="Urheilukanava" />
<stream type="2" pid="417">
<stream_id id="4" />
</stream>
<stream type="4" pid="673">
<iso_639 language="fin" type="0" />
<stream_id id="178" />
</stream>
<stream type="6" pid="929">
<teletext tag="0x56">
<teletext_info lang="fin" type="1" page="100" />
</teletext>
<stream_id id="68" />
</stream>
<stream type="6" pid="1185">
<subtitling_descriptor tag="0x59">
<subtitle_stream lang="fin" type="16" composition_page_id="0002" ancillary_page_id="0002" />
</subtitling_descriptor>
</stream>
</service>
<service id="257" ca="0">
<description tag="0x48" type="1" provider_name="Ruutunelonen Oy" service_name="Nelonen Plus" />
<stream type="2" pid="516">
<stream_id id="4" />
</stream>
<stream type="4" pid="690">
<iso_639 language="fin" type="0" />
<stream_id id="178" />
</stream>
<stream type="6" pid="576">
<teletext tag="0x56">
<teletext_info lang="fin" type="1" page="100" />
</teletext>
<stream_id id="64" />
</stream>
</service>
<service id="4401" ca="0">
<description tag="0x48" type="1" provider_name="MTV Oy" service_name="MTV3+" />
<stream type="6" pid="817">
<teletext tag="0x56">
<teletext_info lang="fin" type="1" page="100" />
</teletext>
<stream_id id="64" />
</stream>
<stream type="2" pid="304">
<descriptor tag="0x02" data="1a485f" text=".H." />
<stream_id id="3" />
<data_stream_alignment tag="0x06" data="02" />
</stream>
<stream type="4" pid="560">
<audio_info tag="0x03" info="67" />
<iso_639 language="fin" type="0" />
<stream_id id="168" />
</stream>
</service>
<service id="4449" ca="1">
<description tag="0x48" type="2" provider_name="SBS Radiot" service_name="Kiss FM" />
<system_clock tag="0x0b" data="4a1f" />
<descriptor tag="0x0c" data="80b48168" text="...h" />
<descriptor tag="0x0e" data="c0028a" text="..." />
<descriptor tag="0x10" data="c0028ac00800" text="......" />
<stream type="4" pid="671">
<audio_info tag="0x03" info="67" />
<iso_639 language="fin" type="0" />
<stream_id id="159" />
<descriptor tag="0x0e" data="c0021c" text="..." />
</stream>
</service>
<service id="4465" ca="1">
<description tag="0x48" type="2" provider_name="SBS Radiot" service_name="Iskelmä" />
<system_clock tag="0x0b" data="4a1f" />
<descriptor tag="0x0c" data="80b48168" text="...h" />
<descriptor tag="0x0e" data="c0028a" text="..." />
<descriptor tag="0x10" data="c0028ac00800" text="......" />
<stream type="4" pid="681">
<audio_info tag="0x03" info="67" />
<iso_639 language="fin" type="0" />
<stream_id id="169" />
<descriptor tag="0x0e" data="c0021c" text="..." />
</stream>
</service>
</transponder>

In windows I have received following values for the subtv channel.

freq service id audio pid video pid teletext pid org net id inversion qam
426.512 257 690 516 576 0 1 128

Mika

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