https://bugzilla.kernel.org/show_bug.cgi?id=57141
Summary: CONFIG_X86_INTEL_PSTATE disables CPU frequency
transition stats and many governors
Product: ACPI
Version: 2.5
Kernel Version: 3.9
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Power-Processor
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Regression: Yes
Created an attachment (id=100011)
--> (https://bugzilla.kernel.org/attachment.cgi?id=100011)
3.9 configuration
Without CONFIG_X86_INTEL_PSTATE
1) I can see frequency transition stats
2) I can use userspace, ondemand and conservative governors
3) I can see the current cores frequencies using
/sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq
This option/driver disables *everything* mentioned above.
Is this an intended behavior?
Of course, it's nice to finally see Turbo Frequencies in the ACPI driver but
what about the rest?
This option also breaks all user space utilities.
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