Re: Trouble with DVB-T2 on frontend 1

[Karl-Heinz Volk <khvolk@xxxxxxxxx>]

I own an Astrometa DVB-T2 stick like this and moving /dev/dvb/adapter0/frontend1 to /dev/dvb/adapter0/frontend0 makes my vdr 2.3.8 (arch linux) running. But I do not succeed scanning for channels here in Bremen in Germany without errors (I have a nice signal with my antenna under the roof). With w_scan version 20170107 I get only six lines:

freenet.TV Info;MEDIA BROADCAST:482000:B8D0G16S1T32Y0P1:T:27500:1569=36:1570@15:0:0:16974:8468:16497:0
ZDF HD;ZDFmobil:586000:B8D0G16S1T32Y0P0:T:27500:2110=36:0;2120,2121:2130;2131:0:2001:8468:16392:0
ZDFinfo HD;ZDFmobil:586000:B8D0G16S1T32Y0P0:T:27500:2210=36:0;2220,2221:2230;2231:0:2002:8468:16392:0
zdf_neo HD;ZDFmobil:586000:B8D0G16S1T32Y0P0:T:27500:2310=36:0;2320,2321:2330;2331:0:2003:8468:16392:0
3sat HD;ZDFmobil:586000:B8D0G16S1T32Y0P0:T:27500:2410=36:0;2420,2421:2430;2431:0:2004:8468:16392:0
KiKA HD;ZDFmobil:586000:B8D0G16S1T32Y0P0:T:27500:2510=36:0;2520,2521:2530;2531:0:2005:8468:16392:0

There is no EPG with this. I have tried to use dvbv5-scan like Marko described but I cannot find initial files for my location.

Yours

   Karl-Heinz

2017-12-03 2:16 GMT+01:00 Jose Alberto Reguero <jareguero@xxxxxxxxxxxxxx>:

I have another card with the same problem, it has frontend0 and frontend1and I modify vdr to open always demux0 dvr0 and net0 instead of demux1, dvr1 and net1, and work well with my card.

Jose Alberto

Enviado desde mi Huawei

-------- Mensaje original --------
Asunto: Re: Trouble with DVB-T2 on frontend 1
De: Marko M鋕el�
Para: VDR Mailing List
CC:

On Wed, Nov 29, 2017 at 11:13:24AM +0100, Klaus Schmidinger wrote:
>>The second startup is for a tweak where I removed
>>/dev/dvb/adapter0/frontend0 and renamed frontend1 to frontend0. On
>>this startup, VDR will not complain anything, but it will not find any
>>signal either. It properly detects the MN88473, but perhaps improperly
>>claims that it provides DVB-T along with DVB-T2 and DVB-C.
>
>Well, from the information that VDR gets from the driver, it does
>support DVB-T, -T2 and -C:
>
> frontend 0/0 provides DVB-T,DVB-T2,DVB-C with
> QPSK,QAM16,QAM32,QAM64,QAM128,QAM256 ("Panasonic MN88473")
>
>If this is not correct, I assume it's a driver problem.

I made some further experiments today. It turns out that frontend1
indeed supports both DVB-T and DVB-T2 (and presumably DVB-C).

Furthermore, with the trick
sudo mv /dev/dvb/adapter0/frontend1 /dev/dvb/adapter0/frontend0
I got VDR to display both DVB-T and DVB-T2 programs. The only difference
from my previous attempts was that this time, I did not rename the old
frontend0 to frontend2. The only frontend device descriptor that existed
in the file system was frontend0.

The reception is not the best here (especially on windy or rainy days,
in particular with DVB-T2), and it is possible that during my previous
attempts, the DVB-T2 signal was too weak to get the tuner to lock on it
in reasonable time. Also, the USB stick might not have the best analog
signal path or the best tuner.

So, the good news is that the device indeed works with this little
tweak. It probably is not worth the effort to implement something in
dvbdevice.c that would allow this device to work without tweaking
/dev/dvb/.

Now I will only have to figure out how to get the remote control to
work.

Best regards,

Marko

_______________________________________________
vdr mailing list
vdr@xxxxxxxxxxx
https://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr

_______________________________________________
vdr mailing list
vdr@xxxxxxxxxxx
https://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr

--

Karl-Heinz Volk

Pastorenweg 78 B

28237 Bremen

_______________________________________________
vdr mailing list
vdr@xxxxxxxxxxx
https://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr