TBS 7220 - DVB-T2 channels not found

[mscuttari]

Hello everyone. I have a TBS 7220 tuner which worked fine under TVMosaic (DVBLink) on Windows 10. I recently installed NextPVR but it seems not to find any of the T2 channels.
TBS 7220 page: https://tbs-technology.de/produkte/dvb/7...r/?lang=en
I attached the NextPVR log files. It seems to be that NextPVR is searching for T channels only.
I also tried with VLC on 610 MHz and I can see all the channels without problems (see the information screenshot). NextPVR, instead, finds nothing on that frequency.
Finally I tried also with w_scan and dvbv5-scan on Ubuntu (results attached). Both see all the channels. It seems to me that only NextPVR has some problems.

Michele

[mscuttari]

After doing many more times the tuning process, also NextPVR found some of the missing channels. Anyway, some are still missing (i.e. all the ones on 514 MHz: Rai 1 HD, Rai 4, ...).
I attach the last log.

[mscuttari]

Problem still here. Nothing found on 514 MHz, despite other softwares such as MediaPortal have no trouble in finding the channels. Is there any tune timeout configuration in NextPVR?

[sub]

Do you have some software that will allow you capture a 1 minute full transport stream from 514 MHz? If so, can you put the file somewhere like onedrive/dropbox/etc and let me know the download link? I'll download it and try the stream here in my signal generator, and fix if necessary.

If you're unable to do that, there is some alternative steps I could come up with for collecting more detailed scanning logging.

[mscuttari]

Do you have some software that will allow you capture a 1 minute full transport stream from 514 MHz? If so, can you put the file somewhere like onedrive/dropbox/etc and let me know the download link? I'll download it and try the stream here in my signal generator, and fix if necessary.

If you're unable to do that, there is some alternative steps I could come up with for collecting more detailed scanning logging.

I generated two streams, both taken from channels on 514 MHz. I used the temporary timeshift files generated by MediaPortal 2, I hope these are what you are looking for.
rai1hd.ts (HD channel): https://www.dropbox.com/s/zelvhtr8vs1t8dw/rai1hd.ts
rai4.ts (SD channel): https://www.dropbox.com/s/d39xczjp5wusazv/rai4.ts

If you can also tell me how to increase log verbosity, I would be happy to try it.

Michele

[sub]

I generated two streams, both taken from channels on 514 MHz. I used the temporary timeshift files generated by MediaPortal 2, I hope these are what you are looking for.
rai1hd.ts (HD channel): https://www.dropbox.com/s/zelvhtr8vs1t8dw/rai1hd.ts
rai4.ts (SD channel): https://www.dropbox.com/s/d39xczjp5wusazv/rai4.ts

Unfortunately these are partial ts streams, not full streams, and lack the information required for scanning etc. Full streams are like 200MB per minute or so. You could see if the evaluation version of tscapture (https://tscapture.com) finds these channels, and do a full ts capture from there. (it is derived from an older version of NextPVR, so may not find them if the same underlying problem is in that version too)

[mscuttari]

Unfortunately these are partial ts streams, not full streams, and lack the information required for scanning etc. Full streams are like 200MB per minute or so. You could see if the evaluation version of tscapture (https://tscapture.com) finds these channels, and do a full ts capture from there. (it is derived from an older version of NextPVR, so may not find them if the same underlying problem is in that version too)

TSCapture managed to instantly find the channels on that frequency.
Here is the full capture: https://www.dropbox.com/s/8dv0qvma6yr6zzx/capture.ts

[sub]

The fact that it found the channels means there is a very good chance that NextPVR v5 should be able to find them too (since they share the core tuning / scanning functionality).

I'd suggest creating a new tuning file in C:\Program Files\NextPVR\data\tuning\DVB-T, which just contains the single frequency. Restart NextPVR (to reset the logs), then try scanning that frequency and reposting the logs.

Use the other files in that directory as an example for how you need to create it

[mscuttari]

The fact that it found the channels means there is a very good chance that NextPVR v5 should be able to find them too (since they share the core tuning / scanning functionality).

I'd suggest creating a new tuning file in C:\Program Files\NextPVR\data\tuning\DVB-T, which just contains the single frequency. Restart NextPVR (to reset the logs), then try scanning that frequency and reposting the logs.

Use the other files in that directory as an example for how you need to create it

I used the manual scan file that was already in the tuning folder.

Code:

[TERTYPE]
1=Manual Scan
2=514000kHz

[DVB]
0=1
1=1,514000,0,0,8

Again nothing found. I attach the logs

[sub]

It seems to be successfully tuning that frequency, and can see it's locking onto the signal.

Try creating a c:\temp directory and setting HKEY_LOCAL_MACHINE\Software\Wow6432Node\LogTSFlow=1 (DWORD) in the registry, then restart and reattempt the scan, then post the logs again, and a zipped copy of c:\temp\mon.txt, and I'll take another look.