[linux-dvb] dvb-ttpci errors only on certain satellite channels

Johan van der Kolk johan.vanderkolk at gmail.com
Sun Aug 17 20:08:15 CEST 2008


Hi

I am getting this error, only when watching or recording certain
(unfortunately most of the dutch) satellite channels.

The receiver card is a FF 2.1 Hauppauge (Nexus-s)

 dmesg |tail
[ 8683.364276] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08cf b96a
ret 0  handle ffff
[ 8684.401584] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08d4 b96a
ret 0  handle ffff
[ 8685.436105] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08d5 b96a
ret 0  handle ffff
[ 8686.470599] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08d6 b96a
ret 0  handle ffff
[ 8687.506259] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08de b96a
ret 0  handle ffff
[ 8688.547456] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08df b96a
ret 0  handle ffff
[ 8689.581923] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08e0 b96a
ret 0  handle ffff
[ 8690.621384] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08e8 b96a
ret 0  handle ffff
[ 8691.662852] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08ed b96a
ret 0  handle ffff
[ 8692.697318] dvb-ttpci: StartHWFilter error  buf 0b07 0010 08f7 b96a
ret 0  handle ffff


I tried to eliminate common factors between working and erroneous
channels.
So far I think I ruled out....Symbol rate, FEC, frequency, transponder,
provider.

In most cases the sequence repeats itself, sometimes after 2 errors,
sometimes
after more errors. Judging from the display quality, also the
signalstrength is good. (except from a thin horizontal line where the screen
seems to split)
I tried firmware versions d and f and use the latest v4l-dvb drivers

dvb_core               81404  2 stv0299,dvb_ttpci
saa7146_vv             50304  1 dvb_ttpci
saa7146                20360  2 dvb_ttpci,saa7146_vv

Since this happens every second, its filling up my logs quite well...I
cant even troubleshoot something else..

Any help is greatly appreciated, even a suggestion for a good replacement
receiver card, if this is a problem with my card. It has to support 2 CI
interfaces though.

Johan
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