Bug #5513: Si21662 DVB-S frontends and the DVB-T signal - Tvheadend

Bug #5513

Si21662 DVB-S frontends and the DVB-T signal

Added by Sam M. almost 6 years ago. Updated almost 6 years ago.

Status:

Invalid

Priority:

Normal

Assignee:

Category:

DVB

Target version:

Start date:

2019-01-21

Due date:

% Done:

Estimated time:

Found in version:

tvheadend_4.3-1685~gcc8f139

Affected Versions:

Description

I haven't bug #5330 anymore but a strange behaviour found caused by one of the DVB-S frontend.

When the dvbs #2 (frontend1) is active on a channel/mux the signal of dvbt is disturbed. So signal immediately come back after this frontend is free.
Checked the F-connector and interchanged the 2 lnb sat input of the receiver card to be sure it is not due to a bad plugging but nothing change. Don't understand why it is different than the frontend0. Before further research I believed it was a problem about the outdoor antenna installation...

History

Updated by Pablo R. almost 6 years ago

It seems a driver bug.

Updated by Peter Bašista almost 6 years ago

Please provide more details.

Which device you use? Why you are not using the latest version of tvheadend? What does it mean that "the signal is disturbed"? Explain in detail. Include trace logs from the time of the issue.

Without more context, it is not possible to offer you any reasonable advice.

Updated by Sam M. almost 6 years ago

Same with last version, "No signal" on the dvbt frontend2 directly when the frontend1 (not the frontend0) is tuning.
The signal of the rf out of the sf4008 tuner is also affected when testing with another dvbt device plugged on it, still because of the dvbs frontend1 activity.

It is just typical message of a signal cut

linuxdvb: Si21682 #0 : DVB-T #2 - poll TIMEOUT
tsfix: transport stream MPEG2AUDIO, DTS discontinuity. DTS = 4924800, last = 3147120
H264 @ #220: DTS and PCR diff is very big (1796943)
tsfix: transport stream H264, DTS discontinuity. DTS = 4958406, last = 3190806
tsfix: transport stream MPEG2AUDIO, DTS discontinuity. DTS = 4924800, last = 3147120
tsfix: transport stream MPEG2AUDIO, DTS discontinuity. DTS = 4924800, last = 3147120

I wonder which image do you use if you don't meet this bug. In my side I am now on openatv 6.3