cpufreq & Pentium III-M

William Lam antitoch at gmail.com
Thu Sep 8 09:19:45 PDT 2005

Hi, I'm having some problems with cpu throttling on my Portege 2010 on
-current. On or off AC the CPU is always at maximum clockrate.

dev.cpu.0.%desc: ACPI CPU
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=\_PR_.CPU0
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%parent: acpi0
dev.cpu.0.freq: 866
dev.cpu.0.freq_levels: 866/22000 400/9800

Trying to set dev.cpu.0.freq to 400 only displays this on the console:

acpi_perf0: Px transition to 400 failed
acpi_perf0: set freq failed, err 6

Disabling acpi_perf with hint.acpi_perf.0.disabled=1 dosn't have any effect.

More information about the freebsd-current mailing list