http://bugzilla.kernel.org/show_bug.cgi?id=9488
Summary: cpu locked at 800MHz due to _PPC
Product: ACPI
Version: 2.5
KernelVersion: 2.6.24-rc3
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [EMAIL PROTECTED]
Most recent kernel where this bug did not occur: unknown
Distribution: Debian
Hardware Environment: Fujitsu-Siemens Lifebook E8410 with [EMAIL PROTECTED]
Software Environment: single-user mode
Problem Description: when loading acpi-cpufreq (with no other daemons running),
the system will reduce CPU frequency, but never increase it, probably due to
wrong _PPC values
Steps to reproduce: boot into single-user mode, load acpi-cpufreq, change
governor to 'ondemand' => cpu frequency will step down to 800 MHz, but will
never be increased again (not even under heavy load). Adding a debug patch from
http://article.gmane.org/gmane.linux.kernel.cpufreq/5642 shows that _PPC values
increase as P-states are entered.
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