Hi, first post. Some help would be appreciated.

I have recently upgraded Kaffeine to the latest build, and I am unable to scan in any channels on any satellites.
I have excellent signal strength and quality on each satellite I can receive, w_scan confirms this.

However, I have SNR of 0% when scanning through a satellite with Kaffeine (Signal display shows 85%, ignorable, as it shows the same % with no cable connected).

Log output from Kaffeine 2.0.3 -

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28-09-16 10:19:13.254 [System  ] "Using libVLC with  --no-video-title-show"
28-09-16 10:19:13.290 [System  ] DvbManager::loadDeviceManager: using built-in dvb device manager
28-09-16 10:19:13.410 [System  ] DvbLinuxDevice::startDevice: found dvb device "P1131716062200002" / "TurboSight TBS 62x0 DVBT/T2 frontend"
28-09-16 10:19:13.412 [System  ] DvbLinuxDevice::startDevice: found dvb device "P1131716069830001" / "TurboSight TBS 6983 DVBS/S2 frontend"
28-09-16 10:19:13.412 [System  ] DvbLinuxDevice::startDevice: found dvb device "P1131716069830001" / "TurboSight TBS 6983 DVBS/S2 frontend"
28-09-16 10:19:41.287 [Warning ] QObject::connect: No such slot DvbSLnbConfigObject::reject()
28-09-16 10:19:57.775 [System  ] DvbRecordingModel::findNewRecordings executed.
28-09-16 10:19:57.775 [System  ] DvbRecordingModel::removeDuplicates executed.
28-09-16 10:20:14.872 [System  ] DvbLinuxDevice::setVoltage: ioctl FE_SET_VOLTAGE failed for frontend "/dev/dvb/adapter1/frontend0"
28-09-16 10:20:15.136 [System  ] tune to: "S 964250 H 22000000 5/6"
28-09-16 10:20:15.136 [System  ] DvbLinuxDevice::libdvbv5 ERROR Need a LNBf to work
28-09-16 10:20:16.678 [System  ] DvbDevice::frontendEvent: tuning failed for freq= 964.25 MHz
28-09-16 10:20:16.679 [System  ] DvbLinuxDevice::setVoltage: ioctl FE_SET_VOLTAGE failed for frontend "/dev/dvb/adapter1/frontend0"
28-09-16 10:20:16.943 [System  ] tune to: "S 979000 V 22000000 5/6"
28-09-16 10:20:16.944 [System  ] DvbLinuxDevice::libdvbv5 ERROR Need a LNBf to work
28-09-16 10:20:18.479 [System  ] DvbDevice::frontendEvent: tuning failed for freq= 979 MHz
28-09-16 10:20:18.480 [System  ] DvbLinuxDevice::setVoltage: ioctl FE_SET_VOLTAGE failed for frontend "/dev/dvb/adapter1/frontend0"
28-09-16 10:20:18.743 [System  ] tune to: "S 994000 H 22000000 5/6"
28-09-16 10:20:18.743 [System  ] DvbLinuxDevice::libdvbv5 ERROR Need a LNBf to work
28-09-16 10:20:20.278 [System  ] DvbDevice::frontendEvent: tuning failed for freq= 994 MHz


Using a Universal LNB, no DiSEqC Switch.

The log shows the silly frequencies tuned in from Astra 28.2E (i.e 964250H, which equates to the correct 10714.25H minus the 9750MHz LO frequency (!). What's that all about?
Needless to say nothing is scanned in during the whole pass of the Astra 28.2 muxes.

The problem obviously lies here - DvbLinuxDevice::setVoltage: ioctl FE_SET_VOLTAGE failed for frontend "/dev/dvb/adapter1/frontend0". Adapter 1 is the TBS6983 tuner I'm using. Any ideas please?

This log is for the Kaffeine 2.0.4 -

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28-09-16 13:37:09.249 [Info    ] Using built-in dvb device manager
28-09-16 13:37:09.372 [Info    ] Found dvb device P1131716062200002: TurboSight TBS 62x0 DVBT/T2 frontend
28-09-16 13:37:09.373 [Info    ] Found dvb device P1131716069830001: TurboSight TBS 6983 DVBS/S2 frontend
28-09-16 13:37:09.373 [Info    ] Found dvb device P1131716069830001: TurboSight TBS 6983 DVBS/S2 frontend
28-09-16 13:40:22.840 [Critical] command MODULATION (4) not found during store
28-09-16 13:40:22.840 [Critical] command PILOT (12) not found during store
28-09-16 13:40:22.840 [Critical] command ROLLOFF (13) not found during store
28-09-16 13:40:24.646 [Critical] command MODULATION (4) not found during store
28-09-16 13:40:24.646 [Critical] command PILOT (12) not found during store
28-09-16 13:40:24.646 [Critical] command ROLLOFF (13) not found during store
28-09-16 13:40:26.440 [Critical] command MODULATION (4) not found during store
28-09-16 13:40:26.440 [Critical] command PILOT (12) not found during store
28-09-16 13:40:26.440 [Critical] command ROLLOFF (13) not found during store
28-09-16 13:40:28.241 [Critical] command MODULATION (4) not found during store
28-09-16 13:40:28.241 [Critical] command PILOT (12) not found during store


Using the same parameters (Satellite, Adapter) as with the Kaffeine 2.0.3, this yields even less info (to me anyway).

OS is Linux Mint 18 KDE
kernel 4.4.0-21 generic

Thanks in advance for any help on this.

Rgds Magwitch.

Apparently, Kaffeine can't see your LNBF.