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

[Werner Hauger <whauger@gmail.com>]

On Mon, 13 Dec 2004 16:51:30 +0200, Werner Hauger <whauger@gmail.com> wrote:
> On Mon, 13 Dec 2004 15:31:07 +0100, Johannes Stezenbach <js@linuxtv.org> wrote:
> > You could check for yourself: run lspci -vvxxx after cold and
> > warm boot from windoze. As for interpretation of the values one
> > has to consult the pci spec. But it's also possible that irq
> > routing is screwed up which won't show up in lspci I think.
> >
> 
> Thanks. I'll try exactly this tonight and report back.
> 

Ok. The PCI registers are identical (lspci -vxxx) after cold and warm
booting. However it seems I have to redefine cold booting. Once the
card worked (after having been in Windows),  it continued to work even
after I had the PC switched off. I even pulled the power cord for a
few seconds, but after booting directly into Linux, the card still
worked first time. Only after leaving the PC switched off over night,
did I get the "normal" behaviour the next morning.
 
> 
> > > > 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.
> > >
> > > I assume that one cannot reset the DVB card without rebooting the computer?
> >
> > saa7146_core.c:saa7146_init_one()
> > ...
> >         /* we don't do a master reset here anymore, it screws up
> >            some boards that don't have an i2c-eeprom for configuration
> >            values */
> > /*
> >         saa7146_write(dev, MC1, MASK_31);
> > */
> >
> > You could check if that makes a difference.
> 
> I'll also give this a try.

Yes, this did the trick. After cold booting this morning, the normal
drivers did not work. I unloaded them, and loaded the one's with this
line enabled and they worked. I will only know tonight (because I have
to wait till the PC is "cold" again) if they work first time, or if I
have to unload and reload them like Stefan and Simeon reported.
 
> Werner
>