[linux-dvb] Re: Problems with WinTV NOVA-CI

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

On Monday 13 Dec 2004 14:42, Werner Hauger wrote:
> On Mon, 13 Dec 2004 13:54:37 +0000, Andrew de Quincey
>
> <adq_dvb@lidskialf.net> wrote:
> > Werner said he'd compared the saa7146 PCI memory between working and
> > non-working and there wasn't really an obvious difference. On the Nova-S
> > cards there isn't really anything else you can control besides the demod
> > and PLL - and someone said that tuning works OK....
>
> Well, as far as szap is concerned, it gets a lock on to the signal,
> but since I don't get any data back, I don't know if tuning *really*
> worked.

If its an stv0299, and it says it got a lock, I would expect it to *really* 
have one. What happens if you try a frequency you know has no signal.. or 
unplug the cable?

> > This sounds _extremely_ like the issue many people who use VDR with an FF
> > and a budget card have - after a bit the budget card just stops
> > delivering data, but it can still tune OK. (the FF card works fine
> > though). A reboot (although not to windows) is required to fix it.
> >
> > /proc/interrupts showed that when this issue with FF+budget occurs, the
> > budget simply doesn't generate interrupts any more.
>
> I'll have a look at /proc/interrupts and also check if the IRQ
> assignment by the BIOS differs between cold and warm booting Linux.
> Maybe I'll also move the card to a different PCI slot to see if it
> makes a difference.

Another thought - I know you compared the SAA7146 memory - did you compare the 
PCI configuration registers (e.g. lspci -xxx)?