Clear Abnormal Termination Bit
John Baldwin
jhb at freebsd.org
Thu May 10 15:47:07 UTC 2007
On Thursday 15 June 2006 12:36:58 pm Anish Mistry wrote:
> I just saw an email on the Linux ACPI list someone posted they needed
> to clear the abnormal termination bit on some motherboards before
> suspending so that the BIOS would correctly hand-off back to the OS.
>
> I'm not sure if we're doing this already, but the equivilent would be
> to put the following before going into S3:
> AcpiHwRegisterWrite (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_STATUS,
> 0x800);
I looked at this again today, and it was actually fixed in ACPICA by
preserving the state of certain reserved bits. 7.0 has the updated ACPICA
(20060623 or later).
--
John Baldwin
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