Messages in this thread | | | Date | Mon, 25 Feb 2008 21:29:24 +0000 | From | "Daniel J Blueman" <> | Subject | [2.6.25-rc3] ACPI _PPC limiting processor speed... |
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My 2.2GHz [1] Thinkpad T61 is unable to get past 1.2GHz, seemingly because of the _PPC ACPI objects [2].
Given that the _PPC object is different for both cores, is this more of a BIOS bug or an ACPI interpreter problem? The problem was present in 2.6.24-rc, 2.6.24 final and since.
BIOS is 7LETA9WW/2.09, so current - would any further information be useful for debugging this problem, and would dumping the ACPI tables be useful?
Thanks, Daniel
--- [1]
freq-table: table entry 0: 2201000 kHz, 0 index freq-table: table entry 1: 2200000 kHz, 1 index freq-table: table entry 2: 1600000 kHz, 2 index freq-table: table entry 3: 1200000 kHz, 3 index freq-table: table entry 4: 800000 kHz, 4 index
--- [2]
cpufreq-core: CPU 0: _PPC is 3 - frequency limited cpufreq-core: CPU 1: _PPC is 0 - frequency not limited -- Daniel J Blueman
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