Messages in this thread | | | Date | Sun, 3 Sep 2006 22:55:02 -0700 | From | Chris Wedgwood <> | Subject | VIA IRQ quirk, another (embarrassing) suggestion. |
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On Mon, Sep 04, 2006 at 01:44:08AM -0400, Jeff Garzik wrote:
> Some installations have VIA products on a PCI card. We cannot > assume that all PCI_VENDOR_ID_VIA devices are on-board devices with > the special VIA PIC on-chip routing (the thing quirk_via_irq > tweaks).
I'll also point out that I was told (very indirectly, those with definitive knowledge please speak up) that VIA claimed the recommended way to deal with these chipset problems is to use ACPI...
However, we know in some cases ACPI doesn't work as-is under Linux, but apparently does under Windows. In many cases though it does appear to suffice.
When chasing down why it doesn't work on other main boards someone who is ACPI knowledgeable claimed that in the past VIA got their ACPI wrong, so we need to figure out what ACPI specific quirk windows is using if we go that route.
It would be really nice if someone from VIA could come forward on this matter.
Now, failing that, Jeff, what about if we try to use ACPI to detect if the PCI device is on-board or a plug-in card? If we did and ignored them would that satisfy you?
Yes, I know this is yet-another horrible heuristic and might not work in all cases, but I think we need to aim to get the majority of systems broken working pretty promptly. As Andrew said, this really is quire embarrassing right now.
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