[linux-dvb] Re: Twinhan Vision Plus & WinFast DTV1000-T
abraham.manu at gmail.com
Mon Mar 6 10:35:55 CET 2006
Matt Pratt wrote:
> On 2/27/06, *Matt Pratt* <mattpratt.au at gmail.com
> <mailto:mattpratt.au at gmail.com>> wrote:
> Non-working case:
> bttv0: Bt878 (rev 17) at 0000:02:0c.0, irq: 169, latency: 132,
> mmio: 0xf9000000
> bttv0: using: *** UNKNOWN/GENERIC *** [card=0,autodetected]
> bttv0: gpio: en=00000000, out=00000000 in=00fffffe [init]
> Which seems to indicate that the pci_read_config_word() of
> PCI_SUBSYSTEM_ID and PCI_SUBSYSTEM_VENDOR_ID is failing.
> Does this indicate larger PCI problems, like a conflict between
> the boards?
> Can some ACPI fiddling help here?
> So even lspci -x was showing that the Subsystem Id and Subsustem
> Vendor Id were being cleared to zeros in the PCI config space of this
> card. But only when the two cards were in the machine. No amount of
> slot swapping seemed to make a difference. Upgrade of motherboard
> firmware made no difference. noacpi, lacpi, pci=routeirq, pci=noacpi
> made no difference. Went to the effort of putting the cards into
> another machine. They just worked. Eventually tried acpi=off (which I
> thought noacpi would have done the same thing) and they both worked!
It all sounds very scary/crazy. If you can get in some logs on that,
lspci -vvv in both cases would be a bit interesting.
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