Bug 12583

Summary:	CPU frequency scaling does not work
Product:	ACPI	Reporter:	Jack Byer (ojbyer)
Component:	BIOS	Assignee:	ykzhao (yakui.zhao)
Status:	REJECTED INVALID
Severity:	normal
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.28.2	Subsystem:
Regression:	---	Bisected commit-id:

Description Jack Byer 2009-01-30 14:22:36 UTC

Latest working kernel version: unknown
Earliest failing kernel version: 2.6.27.2
Distribution: Gentoo
Hardware Environment: Motherboard MS-7125

Problem Description:
powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ processors (2 cpu cores) (version 2.20.00)
[Firmware Bug]: powernow-k8: Your BIOS does not provide ACPI _PSS objects in a way that Linux understands. Please report this to the Linux ACPI maintainers and complain to your BIOS vendor.
[Firmware Bug]: powernow-k8: Your BIOS does not provide ACPI _PSS objects in a way that Linux understands. Please report this to the Linux ACPI maintainers and complain to your BIOS vendor.

Comment 1 Jack Byer 2009-01-31 09:10:00 UTC

false alarm: the BIOS setup had an option to disable cool'n'quiet. Frequency scaling works now.

Comment 2 ykzhao 2009-01-31 18:23:05 UTC

Hi, Jack
    thanks for the confirm. It seems that this issue already disappears after changing the BIOS option.
    thanks.

Comment 3 ykzhao 2009-01-31 18:24:12 UTC

As the issue is fixed by changing the BIOS option, the bug will be rejected and marked as "invalid".
   thanks.