Bug 12583 - CPU frequency scaling does not work
Summary: CPU frequency scaling does not work
Status: REJECTED INVALID
Alias: None
Product: ACPI
Classification: Unclassified
Component: BIOS (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: ykzhao
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-01-30 14:22 UTC by Jack Byer
Modified: 2009-01-31 18:24 UTC (History)
0 users

See Also:
Kernel Version: 2.6.28.2
Subsystem:
Regression: ---
Bisected commit-id:

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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.
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