Tvheadend

Dear communitiy!

I'm experiencing problems with getting my DVBSky S952 PCIe card (Twin Tuner, only adapter 0 is enabled, because I only have 1 sat cable) to work:

Using TVheadend 4.2.6 on ubuntu xenial.
In Linux, the card works using linux-kernel drivers and firmware provided by LinuxTV.org:
It gets found in syslog and dmesg, firmware gets loaded nicely, the program "w_scan" (from apt package w-scan) nicely scans my LNB (Astra 19.2E in this case) and finds all channels with their names.
Note, however, that "scan" from apt package dvb-apps does not work.

In TVheadend, the card scans "networks", it finds 107 muxes with 1438 channels (with their correct names), i mapped 59 of them. Also, it automatically scans the muxes.

However, when left to its own, it does not build EPG data, despite an OTA-grabber is installed.
TVH tries to scan, but it does not succeed. This is what the log gives me:

2018-09-11 19:12:14.173 subscription: 0117: "scan" subscribing to mux "11934V", weight: 5, adapter: "Montage Technology M88RS6000 : DVB-S #0", network: "Astra 19.2", service: "Raw PID Subscription"

2018-09-11 19:12:24.152 mpegts: 11934V in Astra 19.2 - scan no data, failed

and

2018-09-11 19:17:19.649 mpegts: 12285V in Astra 19.2 - tuning on Montage Technology M88RS6000 : DVB-S #0

2018-09-11 19:17:19.681 subscription: 0152: "epggrab" subscribing to mux "12285V", weight: 4, adapter: "Montage Technology M88RS6000 : DVB-S #0", network: "Astra 19.2", service: "Raw PID Subscription"

2018-09-11 19:17:59.649 subscription: 0152: "epggrab" unsubscribing

Moreover, when I log in to the web-frontend and want to play a channel (from the configuration ==> channel window), I also get "no data" errors:

2018-09-11 18:46:05.281 http: 10.0.0.5: using ticket 7AE773E7CEDC85F3BAA0356A2F88BD10866716F5 for /stream/channel/76dbedcfa1bb2cc9728c51275bb077b9

2018-09-11 18:46:05.281 mpegts: 11361.75H in Astra 19.2 - tuning on Montage Technology M88RS6000 : DVB-S #0

2018-09-11 18:46:05.288 subscription: 0004: "HTTP" subscribing on channel "ZDF HD", weight: 100, adapter: "Montage Technology M88RS6000 : DVB-S #0", network: "Astra 19.2", mux: "11361.75H", provider: "ZDFvision", service: "ZDF HD", profile="pass", hostname="10.0.0.5", client="VLC/3.0.4 LibVLC/3.0.4"

2018-09-11 18:46:15.282 subscription: 0004: service instance is bad, reason: No input detected

2018-09-11 18:46:16.282 mpegts: 11361.75H in Astra 19.2 - tuning on Montage Technology M88RS6000 : DVB-S #0

2018-09-11 18:46:16.288 subscription: 0005: "epggrab" subscribing to mux "11361.75H", weight: 4, adapter: "Montage Technology M88RS6000 : DVB-S #0", network: "Astra 19.2", service: "Raw PID Subscription"

2018-09-11 18:46:18.282 subscription: 0004: No input source available for subscription "HTTP" to channel "ZDF HD"

2018-09-11 18:46:18.282 webui: Couldn't start streaming /stream/channel/76dbedcfa1bb2cc9728c51275bb077b9?ticket=7AE773E7CEDC85F3BAA0356A2F88BD10866716F5, No input detected

2018-09-11 18:46:18.282 subscription: 0004: "HTTP" unsubscribing from "ZDF HD", hostname="10.0.0.5", client="VLC/3.0.4 LibVLC/3.0.4"

2018-09-11 18:46:18.315 http: 10.0.0.5: using ticket 7AE773E7CEDC85F3BAA0356A2F88BD10866716F5 for /stream/channel/76dbedcfa1bb2cc9728c51275bb077b9

2018-09-11 18:46:18.315 subscription: 0006: "HTTP" subscribing on channel "ZDF HD", weight: 100, adapter: "Montage Technology M88RS6000 : DVB-S #0", network: "Astra 19.2", mux: "11361.75H", provider: "ZDFvision", service: "ZDF HD", profile="pass", hostname="10.0.0.5", client="VLC/3.0.4 LibVLC/3.0.4"

2018-09-11 18:46:28.316 subscription: 0006: service instance is bad, reason: No input detected

2018-09-11 18:46:30.316 subscription: 0006: No input source available for subscription "HTTP" to channel "ZDF HD"

2018-09-11 18:46:30.316 webui: Couldn't start streaming /stream/channel/76dbedcfa1bb2cc9728c51275bb077b9?ticket=7AE773E7CEDC85F3BAA0356A2F88BD10866716F5, No input detected

2018-09-11 18:46:30.317 subscription: 0006: "HTTP" unsubscribing from "ZDF HD", hostname="10.0.0.5", client="VLC/3.0.4 LibVLC/3.0.4"

The same happens when I connect via KODI media center and an unpriviledged user.

Can somebody point me to what might be configured wrong, because I'm totally stuck. My other PC, using DVBSky S960 USB tuners works nicely with (most) all relevant (to me) configurations in the web-interface identical.

Regards,
sulla