[linux-dvb] Re: hw_sections=0 causes disrupted recordings

[Oliver Endriss <o.endriss@gmx.de>]

Klaus Schmidinger wrote:
> Klaus Schmidinger wrote:
> > Apparently the recent change in av7110.c to have hw_sections=0 by
> > default causes heavily disrupted recordings.
> >
> > I suggest setting the default back to '1', which used to work fine
> > all the time. This will save us from lots of inquiries from users
> > who use the driver with the default settings.
>
> I looked a little deeper into this and found that in StartHWFilter()
> the 'mode' is initialized to 0xb96a, which is the value necessary to
> allow simultaneous recording and replay. In case of DMX_TYPE_SEC and
> hw_sections=1, this will be overwritten with mode=4. So I guess the
> root of the problem is that in case of hw_sections=0 'mode' remains
> at 0xb96a, which I assume causes the section data to be transferred
> via the same channels as TS data and thus results in disrupted
> recordings.
>
> I'm not sure what the correct value for 'mode' would be in this case,
> but maybe one of the driver developers can use this hint to fix this.

Hm, I'm using hw_sections=0 for a long time without any problems (single 
DVB-S 2.1). Maybe this problem occurres with multi-card setups only?

With hw_sections=1 I sometimes get an almost unreadable OSD 
(wrong/transparent colors) after heavy zapping.

Oliver


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