Beiträge von gadgetmind

OK, I had 3 issues.

1) I had to use media_build_experimental to get ngene/cxd2843/tda18212dd working on Digital Devices DVB C2/T2 V3 card and mini PCIe bridge.
2) The cables that Digital Devices use are more delicate than they look and I've broken one when removing it. I'll buy new ones.
3) w_scan doesn't detect DVBT2 channels on this h/w and seems to even find mention of them in frequency file confusing.

However, deleting the two bad tuners and getting mythtv to scan gets me all my SD and HD channels.

Many thanks for the great ongoing work on these drivers.

I may do that, but I'll try tonight with mythtv. I'm only using w_scan as accessing my home machine via X to run mythtv-setup is painful given my slow ADSL upload at home.

But even the new w_scan on my working tuner doesn't like DVB-T2.

With this in my frequency file -

# T[2] <freq> <bw> <fec_hi> <fec_lo> <mod> <tm> <guard> <hi> [<plp_id>] [# comment]
#----------------------------------------------------------------------------------------------
T2 634000000 8MHz 2/3 NONE QAM256 32k 1/128 NONE 0 # PSB3

this command "./w_scan -c GB -I uk-EmleyMoor -a 3 -f t " give me

Using DVB API 5.10
frontend 'CXD2837 DVB-C DVB-T/T2' supports
DVB-T2
INVERSION_AUTO
QAM_AUTO
TRANSMISSION_MODE_AUTO
GUARD_INTERVAL_AUTO
HIERARCHY_AUTO
FEC_AUTO
FREQ (47.12MHz ... 865.00MHz)
-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
updating transponder list..
QAM_AUTO f = 0 kHz I999B8C999D999T999G999Y999P128 (0:0:0): skipped: (freq 2 unsupported by driver)

initial_tune:2839: Setting frontend failed QAM_AUTO f = 0 kHz I999B8C999D999T999G999Y999P128 (0:0:0)
tune to: QAM_AUTO f = 0 kHz I999B8C999D999T999G999Y999P128 (0:0:0) (time: 00:00.008)
skipped: (freq 2 unsupported by driver)

ERROR: Sorry - i couldn't get any working frequency/transponder
Nothing to scan!!

Where is it getting 0 kHz from?

Anyway, perhaps nothing to do with the drivers!

Hmmm, there is improvement if I used one of my other tuners. Maybe I damaged one of those cables between PCI-e card and tuner?

Thanks for the suggestion, and I've built and tried a new w_scan, but it doesn't make any difference.

w_scan version 20141122 (compiled for DVB API 5.10)
using settings for UNITED KINGDOM
DVB aerial
DVB-T GB
scan type TERRESTRIAL, channellist 6
output format vdr-2.0
WARNING: could not guess your codepage. Falling back to 'UTF-8'
output charset 'UTF-8', use -C <charset> to override
Info: using DVB adapter auto detection.
/dev/dvb/adapter0/frontend0 -> TERRESTRIAL "CXD2837 DVB-C DVB-T/T2": very good :-))

Using TERRESTRIAL frontend (adapter /dev/dvb/adapter0/frontend0)
-_-_-_-_ Getting frontend capabilities-_-_-_-_
Using DVB API 5.10
frontend 'CXD2837 DVB-C DVB-T/T2' supports
DVB-T2
INVERSION_AUTO
QAM_AUTO
TRANSMISSION_MODE_AUTO
GUARD_INTERVAL_AUTO
HIERARCHY_AUTO
FEC_AUTO
FREQ (47.12MHz ... 865.00MHz)
-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
Scanning DVB-T...

<snip>

658000: (time: 02:53.316) signal ok: QAM_AUTO f = 658000 kHz I999B8C999D999T999G999Y999 (0:0:0)
Info: no data from PAT after 2 seconds
deleting (QAM_AUTO f = 658000 kHz I999B8C999D999T999G999Y999 (0:0:0))
658167: (time: 02:56.428) signal ok: QAM_AUTO f = 658167 kHz I999B8C999D999T999G999Y999 (0:0:0)
Info: no data from PAT after 2 seconds
deleting (QAM_AUTO f = 658167 kHz I999B8C999D999T999G999Y999 (0:0:0))
657833: (time: 02:59.416) signal ok: QAM_AUTO f = 657833 kHz I999B8C999D999T999G999Y999 (0:0:0)
Info: no data from PAT after 2 seconds
deleting (QAM_AUTO f = 657833 kHz I999B8C999D999T999G999Y999 (0:0:0))

I'm having issues with a Digital Devices mini PCI-e ngene board connected to two Duoflex C2/T2 cards that I'm (trying to!) use for UK Freeview, so DVB-T and DVB-T2.

After building media_build_experimental and installing those modules, I can see my hardware.

mythtvuser@overkill:/usr/src/media_build_experimental$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham

ngene (18:720 18:0) on PCI Domain:0 Bus:4 Device:0 Function:0
DEVICE:0 ADAPTER:0 FRONTEND:0 (CXD2837 DVB-C DVB-T/T2)
FE_OFDM Fmin=47MHz Fmax=865MHz
DEVICE:0 ADAPTER:3 FRONTEND:0 (CXD2837 DVB-C DVB-T/T2)
FE_QAM Fmin=47MHz Fmax=865MHz
DEVICE:0 ADAPTER:2 FRONTEND:0 (CXD2837 DVB-C DVB-T/T2)
FE_QAM Fmin=47MHz Fmax=865MHz
DEVICE:0 ADAPTER:1 FRONTEND:0 (CXD2837 DVB-C DVB-T/T2)
FE_QAM Fmin=47MHz Fmax=865MHz

Using "scan", the tuner is getting a signal but I'm not seeing any channels.

>>> tune to:
682000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSM
ISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
>>> tuning status == 0x00
>>> tuning status == 0x1f
WARNING: filter timeout pid 0x0011
WARNING: filter timeout pid 0x0000
WARNING: filter timeout pid 0x0010

w_scan says -
w_scan -c GB -f t -t 3 -F
w_scan version 20130331 (compiled for DVB API 5.10)
using settings for UNITED KINGDOM
DVB aerial
DVB-T GB
scan type TERRESTRIAL, channellist 6
output format vdr-2.0
WARNING: could not guess your codepage. Falling back to 'UTF-8'
output charset 'UTF-8', use -C <charset> to override
Info: using DVB adapter auto detection.
/dev/dvb/adapter0/frontend0 -> TERRESTRIAL "CXD2837 DVB-C DVB-
T/T2": very good :-))

Using TERRESTRIAL frontend (adapter /dev/dvb/adapter0/frontend0)
-_-_-_-_ Getting frontend capabilities-_-_-_-_
Using DVB API 5.a
frontend 'CXD2837 DVB-C DVB-T/T2' supports
DVB-T2
INVERSION_AUTO
QAM_AUTO
TRANSMISSION_MODE_AUTO
GUARD_INTERVAL_AUTO
HIERARCHY_AUTO
FEC_AUTO
FREQ (47.12MHz ... 865.00MHz)
<snip>
658000: (time: 03:14) (time: 03:15) signal ok:
QAM_AUTO f = 658000 kHz I999B8C999D999T999G999Y999
Info: no data from NIT(actual)

And again no channels.

dvb-few-tool shows all adaptors set to DVBT.

So, it looks like we're turning but not seeing a transport stream?

I also tried media_build_experimental_work but get the same results.

Is this forum/thread a good place for me to ask about this?
Is there any more debug I can enable or anything else I can tweak?