[mythtv] DVB-S2 (failure)

Janne Grunau janne-mythtv at grunau.be
Sat Aug 15 11:35:27 UTC 2009


On Sat, Aug 15, 2009 at 12:36:43AM +0200, Staffan Pettersson wrote:
> 
> I am not leaving any parameter to "auto" in the full-scan dialog. I am
> sorry to say but the new diff did not make any difference (21272).
> 
> I think this problem is only present on nova-s2 cards and other cards
> using the same chip.
> 
> The values that i input should be correct because i have been using
> the old patches before the scanner rewrite.
> 
> Example transport:
> Frequency: 12015000
> Polarity: Horizontal
> Symbol rate: 30000000
> Mod sys: DVB-S2
> FEC: 3/4
> Modulation: 8psk
> Inversion: off
> Rollof: 0.35
> 
> Mythtv output during scan:
> 
> 2009-08-15 00:06:36.624 DVBChan(1:/dev/dvb/adapter1/frontend0): Old Params: 0 auto a auto auto a a auto a v msys: UNDEFINED $
>                         DVBChan(1:/dev/dvb/adapter1/frontend0): New Params: 12015000 8psk 0 auto auto a a auto a h msys: DVB$

FEC is missing from this string, but it's set to auto since the frontend
reports FE_CAN_FEC_AUTO which seems to be only true for DVB-S
transports. I attached a new patch to #5882 which doesn't change the the
FEC to auto for DVB-S2 transports.

Janne


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