[linux-dvb] Re: Budget SU1278 (STV0299/TSA50059) DVB-S corruption on SOME channels

[Andrew de Quincey <adq_dvb@lidskialf.net>]

> > Actually, I've just noticed the above was with a different tuner...
> > "BSRU6, TDQB-S00x". Although it is STV0299B based, it doesn't seem to be
> > able to deal with symbol rates below 10MBaud. Is this expected? (I've
> > tested with the normal driver, and it has the same problem BTW)
>
> Errm, no. This should actually work and the last time I tested with a
> SU1278 (no SH) in our STB it did. Can you please try to find out what's
> broken here? Did not tested the Alps tuner though...

I'm sure it worked on a previous revision of the driver with those cards.. 
I'll try regressing.

> > It was; I fixed the bug. However some channels still don't tune correctly
> > for some reason... I have an awful  suspicion this is the change to a
> > 1MHz stepsize :(
>
> You could try to preinitialize the AFC to the correct offset, this might
> help at large stepsizes.

Nah, it was a bug in my code.

As it turns out, the changes I made don't help with my problems (I think 
they're interference problems). However, they do make the driver use the 
recommended Philips values, and don't have any adverse affects. Do you think 
its worth me finishing it off with a view to checking it in (after testing)?



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