[linux-dvb] Help! I cant view video. BUT I can scan!!

Per Blomqvist p.blomqvist at lsn.se
Sun Feb 10 23:37:49 CET 2008


Thanx! Now it works!!

Watching some Danish (Dansk) channel, about Napoleon.

Thanx again, for mocking me up.. It was the channel.conf, that was wrong

The channel.conf -file that I used before, was 6 month old and from my 
previous computer.
(Now "dvbscan" doesn't detect anything on that bandwidth. And that "TV6" 
was on that..

If I run dvdscan against the closest mayor city (Malmö in my case, here 
in south Sweden), it only tunedin encrypted channels. BUT, against  all 
of Denmark (file "dk-All") I get a some..

Its strange though.. I CAN SEE "TV6" unencrypted, but in Windows XP. But 
there with A program called "PowerCinema" is used (in XP OS).
(tuning is a fuzz there also, I believe "PowerCinema" download channels 
and guides and what, from the internet. It would maybe be a point to 
retrieve its (channel) configure file. I have looked, but found none.

Another question now, how is all these "initial-tuning-data" created??

redeb:~/.tzap# cat dk-All
# Denmark, whole country
# Created from http://www.digi-tv.dk/Indhold_og_tilbud/frekvenser.asp
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
T 482000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 506000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 538000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 554000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 602000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 658000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 682000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 690000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 714000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 738000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 778000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 826000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
T 834000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE

redeb:~/.tzap# cat se-Malmo
# Sweden - Malmö
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
T 482000000 8MHz 3/4 NONE QAM64 8k 1/4 NONE
T 506000000 8MHz 3/4 NONE QAM64 8k 1/4 NONE
T 618000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE
T 818000000 8MHz 3/4 NONE QAM64 8k 1/4 NONE
T 850000000 8MHz 3/4 NONE QAM64 8k 1/4 NONE

Can I compose one, of these by myself (from other nearby citys), or how?

hermann pitton wrote:
> Hi,
>
> Am Sonntag, den 10.02.2008, 15:28 +0100 schrieb Per Blomqvist:
>   
>> Hello Jonas Andren.
>> (Kom inte o säg att Anden är dansk)
>>
>> The Harware I have, I have said.  Its the media-card, is this: 
>> http://www.linuxtv.org/wiki/index.php/Asus_My_Cinema-P7131_Hybrid
>> (running on a amd64, mother-board m2a-vm.. Inköpt på Kjell&Co byggsats 
>> för 2 veckor sedan...
>>
>> I also said that the same Media-card did function (somewhat) on my old 
>> computer (a PII330MHz, though with terrible video result). And it works 
>> in Windows XP. So, the Media-card function.
>>
>> I downloaded&installed  linuxtv-dvb-apps-1.1.1.tar.bz2 
>> <http://www.linuxtv.org/downloads/linuxtv-dvb-apps-1.1.1.tar.bz2>
>> (and all so called utils: "dvbdate" "dvbtrafick" "scan" and "zap" 
>> worked. BUT, nothing under the test)
>>     
>
> you should prefer dvb-apps from mercurial, but that is not so important.
>
>   

There is a deb-package called "mercurial".
(I suspect it doesnt have anything, todo with this, no?)

> First of all I would like to see relevant "dmesg" stuff for the card
> and tuner to see if it is still likely the same card, auto detected and
> eeprom content unchanged and all chips alive. If you enable i2c_scan=1
> you look first for the devices found.
>   
I used the linux-kernels-source. in its documents for this. Downloaded 
the firmware..
(I include dmesg output in the end of this email, anyway. The revision 
is 20, and not a LifeView fabrication..

> Also we never saw, if your firmware upload is successful and if you use
> preferably revision 29 with such a card with Low Noise Amplifier.
> If not, download it from LifeView with the script in /Documentation/dvb
> and do a cold boot. (recent stuff is in a v4l-dvb mercurial snapshot)
>
> Antenna input for DVB-T is FM/RF input.
>
> Can you point to the initial tuning file you are using or to what you
> believe is a valid channels.conf file for you?
>
> It is always worth a try to set all to AUTO in the initial tuning file,
> except frequency to tune and bandwidth and then use "scan" to create a
> channels.conf.
>   

Yes, now my system is relatively fresh, again (I dont load any 
kernel-module with any extra options).

> If still not, we install the recent v4l-dvb, remove all old modules and
> might try to debug from there.
>
> Cheers,
> Hermann
>
>
>
>   

I also tried to compile the kernel (there was this option there 
VIDEO_ADV_DEBUG). But unfortunately I cut away so other stuff, soo the 
new kernel got panic at bootup. Another story..

It was the "channel.conf" that was wrong.. Thx again!
(what a fuzz)



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