[linux-dvb] Please see if you can help: Twinhan VP 1025 DVB-S PCI Card

Dave Schile daveschile at hotmail.com
Sun Aug 13 23:22:52 CEST 2006


Hi list,
I've been struggling with this for awhile now and I'm in need of some 
insight.  The problem seems to be that the front end is unable to tune to or 
monitor a signal.  Here is some background info:

Card:
Twinhan 1025 VisionPlus PCI DVB-S
Kernel/Dist:
2.6.17.8, Debian testing.
I just used hg to download the latest v4l-dvb and dvb-apps from Mercurial 
and everything compiled and installed fine.  The drivers all modprobe fine.  
I modpobe in this order:
dvb-core
bttv
dvb-bt8xx
dst

Is there anything I'm missing there?
dmesg says:
###############dmesg#####################
DVB: registering new adapter (bttv0).
dst(0) dst_get_device_id: Recognise [DST-03T]
dst(0) dst_get_device_id: Unsupported
dst(0) dst_check_mb86a15: Found a MB86A15 NIM
dst(0) dst_get_device_id: [DST-03T] has a [MB 86A15]
dst(0) dst_get_device_id: [DST-03T] has a [MB 86A15]
DST type flags : 0x2 ts204 0x4 symdiv 0x10 firmware version = 2
dst(0) dst_get_mac: MAC Address=[00:08:ca:19:d2:00]
DVB: registering frontend 0 (DST DVB-S)...
###########################################
this seems fne to me.
Now the problems...
dvbtune to the satellite Galaxy 10R at 123 degrees west., I'm in southern 
California:

# dvbtune -f 11800000 -p V -s 26657
Using DVB card "DST DVB-S"
tuning DVB-S to L-Band:0, Pol:V Srate=26657000, 22kHz=off
polling....
Getting frontend event
FE_STATUS:
polling....
polling....
polling....

Just goes on and on polling...

Then I look a dvbsnoop frontend info:

# dvbsnoop -s feinfo
dvbsnoop V1.4.00 -- http://dvbsnoop.sourceforge.net/

---------------------------------------------------------
FrontEnd Info...
---------------------------------------------------------

Device: /dev/dvb/adapter0/frontend0

Basic capabilities:
    Name: "DST DVB-S"
    Frontend-type:       QPSK (DVB-S)
    Frequency (min):     950.000 MHz
    Frequency (max):     2150.000 MHz
    Frequency stepsiz:   1.000 MHz
    Frequency tolerance: 29500
    Symbol rate (min):     1.000000 MSym/s
    Symbol rate (max):     45.000000 MSym/s
    Symbol rate tolerance: 0 ppm
    Notifier delay: 0 ms
    Frontend capabilities:
        auto inversion
        FEC AUTO
        QPSK

Current parameters:
    Frequency:  0.000 MHz
    Inversion:  AUTO
    Symbol rate:  26.657000 MSym/s
    FEC:  FEC AUTO

You can see that the freq is not set.  An interesting note is that up in the 
basic capabilities section is lists frequency(max) as 2150.00 MHz.  Is that 
right?  The Ku-band satelite frequency is listed on lyngsat.com as being 
11800 MHz.  What am I missing there?

Heres an interestng error from dvbsnoop:

# dvbsnoop -pd 9 -s signal
dvbsnoop V1.4.00 -- http://dvbsnoop.sourceforge.net/
   DEMUX : /dev/dvb/adapter0/demux0
   DVR   : /dev/dvb/adapter0/dvr0
   FRONTEND: /dev/dvb/adapter0/frontend0

---------------------------------------------------------
Transponder/Frequency signal strength statistics...
Capabilities: BER: 1  SNR: 1  SIG: 1  STAT: 1  UBLK: 1
---------------------------------------------------------
Error(95): frontend ioctl: Operation not supported
cycle: 1  d_time: 0.001 s

I've searched but I can't figure out what the Error(95) is .  Any ideas?

a similar message comes from dvbtune:
# dvbtune -m
FE READ_BER: : Operation not supported
FE READ UNCORRECTED BLOCKS: : Operation not supported
Signal=0, Verror=0, SNR=0dB, BlockErrors=0, ()
FE READ_BER: : Operation not supported
FE READ UNCORRECTED BLOCKS: : Operation not supported
Signal=0, Verror=0, SNR=0dB, BlockErrors=0, ()
FE READ_BER: : Operation not supported
FE READ UNCORRECTED BLOCKS: : Operation not supported
Signal=0, Verror=0, SNR=0dB, BlockErrors=0, ()
FE READ_BER: : Operation not supported

and on and on..

Finally I get this from every option of dst_test that I run.  I can't find 
any documentation on this app though, so I'm not sure how it's supposed to 
work.
# dst_test -i
main: Error opening /dev/dvb/adapter0/ca0

This seems to be because ca0 is missing:
/dev/dvb/adapter0# ls
demux0  dvr0  frontend0  net0

I would REALLY apprecate any help or insght you might have on this.  thank 
you very much for your consideration.

Dave





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