[linux-dvb] Problems with Nebula DigiTV & Linux

["greg" <greg.wickham@grangenet.net>]

Hi Guys,

Am trying to get a Nebula DigiTV working with Linux. With no success.

I've used:
 - linux-2.6.0-test5
 - bttv9-20030918
 - linux-dvb (from cvs - 19/9/2003)

I think that the Nebula DigiTV requires the nxt6000 module. (Haven't
found an explicit statement although there are inferences). This isn't
available as an option in linux-2.6.0-test5 (after linking with
linux-dvb) so I had to change the Kconfig. There was some juggling
getting the kernel modules built but it appears ok.

Loading the modules (and using debug on the nxt6000):

[root@teevee root]# modprobe dvb-bt8xx
[root@teevee root]# modprobe nxt6000 debug=1

Sep 20 12:11:00 teevee kernel: DVB: registering new adapter (Nebula
DigiTV DVB-T).
Sep 20 12:11:07 teevee kernel: nxt6000: init
Sep 20 12:11:07 teevee kernel: nxt6000: attach
Sep 20 12:11:07 teevee kernel: nxt6000: detected TI ALP510 tuner at 0xC0
Sep 20 12:11:07 teevee kernel: nxt6000: attached at 0:0
Sep 20 12:11:07 teevee kernel: DVB: registering frontend 0:0 (NxtWave
NXT6000)...
Sep 20 12:11:07 teevee kernel: nxt6000: nxt6000_read error (.addr =
0x18, reg: 0x73, ret: -121)
Sep 20 12:11:07 teevee kernel: nxt6000: nxt6000_read error (.addr =
0x24, reg: 0x73, ret: -121)
Sep 20 12:11:07 teevee kernel: nxt6000: nxt6000_read error (.addr =
0x28, reg: 0x73, ret: -121)

After this .. There are definitely problems using the higher level
applications. For example:

[root@teevee dvbtune]# ./dvbtune -f 543500000 -i
Using DVB card "NxtWave NXT6000"
tuning DVB-T (in Australia) to 543500000 Hz
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI
FE_HAS_SYNC
Bit error rate: 0
Signal strength: 0
SNR: 0
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI
FE_HAS_SYNC
<transponder type="T" freq="543500000">
Nothing to read from fd_sdt
</transponder>

I'm guessing the above should have returned some useful information. In
addition on frequencies that I know are being used it throws an error:

[root@teevee dvbtune]# ./dvbtune -f 205500000 -i
Using DVB card "NxtWave NXT6000"
tuning DVB-T (in Australia) to 205500000 Hz
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_TIMEDOUT FE_HAS_CARRIER
Not able to lock to the signal on the given frequency

Any assistance would be greatly appreciated ..

TIA,

   -Greg

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