(original post: http://www.linuxtv.org/pipermail/linux-dvb/2006-
August/012188.html)
Dave,
I had the exact same problem. First the card would be recognised but
wouldn't appear in /dev/dvb (solved by following/adapting
instructions here: http://ubuntuforums.org/showthread.php?p=1777028),
then once it did have device nodes it wouldn't tune.
This was solved by coldstarting, booting into Windows and using
Twinhan's software to tune the card. It was then warm booted into
Kubuntu Dapper and the card now worked. Previously dvbsnoop -s feinfo
showed this:
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: 22.000000 MSym/s
FEC: FEC AUTO
then after the trick using Twinhan's Windows software it showed this:
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: 1053.000 MHz
Inversion: OFF
Symbol rate: 22.000000 MSym/s
FEC: FEC AUTO
Then it worked fine - note the frequency no longer is "0.000 MHz",
however it does return to 0 after a cold boot but the card still
works fine.
So it looks like the card needs to be used from Windows first, the
only problem I have left now is a race condition between the Twinhan
and a Terratec USB DVB-T receiver as to which gets to be device 0 -
it changes between each boot.
HTH,
Tim.
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?
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