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DVB-S2 Cards Digital Devices: Can't set LNB - anymore, sporadically?

Added by M. Thy. about 1 year ago

Hi everybody,

first: I have just yesterday set up tvheadend, it was a very good experience, it is a very nice software.

I am running on Ubuntu 20.04, tvheadend 4.3.2159.

I have four dvb-s2 receivers: a digital devices dual card with a dual sub-card. The cards have been working for years... I have moved to a new server, now sometimes they don't come up during boot and I have to reboot, but if they are present, they work (in mythtv).

Now I have set them up all four in tvheadend, and they worked, I was able to configure all four cards for unicable.

But - they are somehow dropping out. Yesterday I had all four configured with the LNB for unicable and their respective channels and frequencies.

Today, while still trying to configure the client, suddenly card 1 and 3 do not show the LNB anymore and I can't choose an LNB... like it was a DVB-C card or something.

Trying back and forth - the fourth card (card 3) also lost its LNB setting, now only card 0 is left.

OK - I suppose that tvheadend is querying the properties from the driver and offering appropriate configuration options. So it might be a driver problem. but it is four identical cards, which have been working, and now, they are dropping out one after the other...?

How can I troubleshoot this problem?

Right now I am upgrading Ubuntu to 20.04 and I might check for a more up-to date driver from digital devices when the system is back up.

I appreciate any help, thank you!

Matthias


Replies (1)

RE: DVB-S2 Cards Digital Devices: Can't set LNB - anymore, sporadically? - Added by M. Thy. about 1 year ago

Hi again,

just an update, it seems I have fixed it.

The solution was to go to /var/lib/tvheadend/input/linuxdvb/adapters and delete all adapters. I had more than 4 there - some remains from the dvbloopbackdevices (which I had never used or even seen in tvheadend because they were still being occupied by myth).

Now I have four working adaptors and it seems I can use them all from mythtv (load test is still to do).

All the best,

M.

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