[linux-dvb] probs with af901x on mythbuntu

pjama pjama at optusnet.com.au
Mon May 5 10:03:47 CEST 2008



Bastiaan Wentink wrote:
> Hi :)
> 
> have you stopped mythtvbackend?
> Command is afaik /etc/init.d/mythtvbackend stop.
> I had the same thing with mythbuntu
> 

Hi Bastiann,
Thanks for the reply. You are exactly right. Mythbuntu has locked the cardfor it's own selfish use. "sudo /etc/init.d/mythtv-backend stop" will kill it.

OK next problem. I now get:
peter at SunU20:~$ sudo scan /usr/share/doc/dvb-utils/examples/scan/dvb-t/au-Brisbane
scanning /usr/share/doc/dvb-utils/examples/scan/dvb-t/au-Brisbane
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 226500000 1 3 9 3 1 1 0
initial transponder 177500000 1 2 9 3 1 2 0
initial transponder 191625000 1 3 9 3 1 1 0
initial transponder 219500000 1 3 9 3 1 1 0
initial transponder 585625000 1 2 9 3 1 2 0
>>> tune to: 226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to: 226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE (tuning failed)

< repeated several times with a different channel but similar failed message >

WARNING: >>> tuning failed!!!
>>> tune to: 585625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE (tuning failed)
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
dumping lists (0 services)
Done.
peter at SunU20:~$


Now (while donning my flame proof suit), I must confess that I hadn't thoroughly gone through the mailing list (google failed me) but since posting I've discovered a few things....

1) in dmesg where it says "af9013: firmware version:4.73.0" Does this mean it found version 4.73.0 on the device or in the /lib/firmware/kernel<blah>/dvb_usb_af9015 file? I believe I installed version 4.95.0 (but being a binary file it's hard to confirm). Should they match, Can I upgrade the device or should I downgrade the dvb_usb_af9015 file?

2) A post from Antti back in the beginning of April (http://www.linuxtv.org/pipermail/linux-dvb/2008-April/025267.html) says the driver works but tuning fails because of the MXL5005 tuner. Bummer! 
Antti, did you get the usb sniff that you were after? If not, can you recommend an application that can dump a suitable file?

Cheers
peter

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