CPU frequency doesn't drop below 1200MHz (like it used to)

[Ivan Klymenko]

Fri, 22 May 2015 09:33:15 +0200
Nikos Vassiliadis <nvass at gmx.com> написав:

> Hi,
> 
> I just noticed that my CPU's frequency doesn't support dropping
> below 1200MHz. It used to be able to go down to 150MHz, if I am
> not mistaken. I'd like it to go down to 600MHz via powerd, like
> it used to go. This is a month's old 10-STABLE.
> 
> > [nik at moby ~]$ sysctl dev.cpu.0.freq_levels
> > dev.cpu.0.freq_levels: 2400/35000 2300/32872 2200/31127 2100/29417
> > 2000/27740 1900/26096 1800/24490 1700/22588 1600/21045 1500/19534
> > 1400/18055 1300/16611 1200/15194
> 
> This is the CPU:
>  > hw.model: Intel(R) Core(TM) i3-3110M CPU @ 2.40GHz
> 
> Thanks in advance for any ideas,
> Nikos

Try changing the options in /boot/device.hints
hint.acpi_throttle.0.disabled="0"
hint.p4tcc.0.disabled="0"