[mythtvnz] Tuning FreeView - can't lock transponder and FRONTEND DEVICE busy?

[Bob]

Hi.

I'm trying to tune a Hauppauge Nova S Plus into the FreeView channels, 
attempting to follow the instructions at 
http://www.wlug.org.nz/FreeViewMythTvSetup.

Depending upon which transponder I try to tune with dvbtune I either get no 
lock or get a lock but a FRONTEND DEVICE error

The TVNZ transponder:

# dvbtune -f 1183000 -s 22500 -p h -m
Using DVB card "Conexant CX24123/CX24109"
tuning DVB-S to L-Band:0, Pol:H Srate=22500000, 22kHz=off
ERROR setting tone
: Invalid argument
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL
polling....
polling....

then it continues polling.


On the TV3 transponder (or a SKY one for that matter)

# dvbtune -f 1156000 -s 22500 -p h -m
Using DVB card "Conexant CX24123/CX24109"
tuning DVB-S to L-Band:0, Pol:H Srate=22500000, 22kHz=off
ERROR setting tone
: Invalid argument
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Event:  Frequency: 11756000
        SymbolRate: 22500000
        FEC_inner:  3

Bit error rate: 0
Signal strength: 62208
SNR: 62495
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
frontend: 8FRONTEND DEVICE: : Device or resource busy

Myth certainly isn't running and I have the following modules loaded (I get 
the same problem immediately after I modprobe them):

# lsmod
Module                  Size  Used by
cx88_dvb               15684  0
cx88_vp3054_i2c         5312  1 cx88_dvb
cx8802                 16708  1 cx88_dvb
cx88xx                 66724  2 cx88_dvb,cx8802
isl6421                 2432  1
cx24123                13320  1
dvb_pll                13508  1 cx88_dvb
video_buf_dvb           5636  1 cx88_dvb
dvb_core               82352  1 video_buf_dvb
it87                   22352  0
hwmon_vid               3712  1 it87
i2c_isa                 5312  1 it87
usbhid                 24480  0
snd_pcm                81160  0
snd_timer              22088  1 snd_pcm
snd                    56936  2 snd_pcm,snd_timer
snd_page_alloc          8528  1 snd_pcm
ir_common              32452  1 cx88xx
i2c_algo_bit            7880  2 cx88_vp3054_i2c,cx88xx
video_buf              23172  4 cx88_dvb,cx8802,cx88xx,video_buf_dvb
tveeprom               16976  1 cx88xx
videodev               26944  1 cx88xx
v4l1_compat            13316  1 videodev
compat_ioctl32          9408  0
v4l2_common            18048  3 cx88xx,videodev,compat_ioctl32
btcx_risc               4744  2 cx8802,cx88xx
nvidia               8104376  0
ohci1394               33160  0
ohci_hcd               20932  0
ehci_hcd               31244  0
usbcore               130544  4 usbhid,ohci_hcd,ehci_hcd
evdev                  10048  0
sg                     24672  0


Does anybody have any advice on what might be going wrong?  Any more 
information I can provide?


Thanks very much
Bob