[Bugme-new] [Bug 10719] New: ICH9 boot failure, usb causing interrupts during calibration

bugme-daemon at bugzilla.kernel.org bugme-daemon at bugzilla.kernel.org
Thu May 15 20:15:32 PDT 2008


http://bugzilla.kernel.org/show_bug.cgi?id=10719

           Summary: ICH9 boot failure, usb causing interrupts during
                    calibration
           Product: ACPI
           Version: 2.5
     KernelVersion: 2.6.25
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Config-Interrupts
        AssignedTo: acpi_config-interrupts at kernel-bugs.osdl.org
        ReportedBy: zidsoft at gmail.com


My ICHR9 based mobo won't boot with legacy usb keyboard turned on (which I
quite fancy for using grub)

I did some googling and testing and came upon a solution, but I have no idea
how to implement a quirk like this.

LEGACY_USB_EN needs to be disabled during calibration or the wrong result is
returned.

Similar patch:
http://launchpadlibrarian.net/5909289/delay-loop-calibration.patch

Documentation:
http://www.intel.com/design/chipsets/datashts/316972.htm


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