http://bugzilla.kernel.org/show_bug.cgi?id=11857
yakui.z...@intel.com changed:
What |Removed |Added
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Status|NEEDINFO |ASSIGNED
------- Comment #43 from yakui.z...@intel.com 2008-12-21 19:33 -------
Hi, Sumant
Thanks for the confirmation.
Now it is clear that this bug is related with incorrect GPI routing of
00:00:1.f0 LPC bridge. If it is configured correctly, the ACPI event can be
reported correctly. On windows the ACPI event can be reported correctly. Maybe
the GPI routing is configured correctly.
In theory the GPI routing should be configured by BIOS after issuing
ACPI_ENABLE command to SMI I/O port. But unfortunately it is not initialized
correclty on Linux. But it is correct on Windows XP.
We don't know whether some ACPI objects are not used correctly on Linux or
the initiali order about PCI devices/ACPI devices is incorrect.
What I mentioned in comment #30 is to test whether the GPI routing is
correctly configured after issuing the ACPI_ENABLE command if the system is
booted with ACPI disabled.
But unfortunately the system can't be booted with ACPI disabled.
Thanks.
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