Re: frequency scaling on D525MW not working properly

[Sepherosa Ziehau <sepherosa@xxxxxxxxx>]

On Tue, Jul 31, 2012 at 5:01 AM, Sven Gaerner <sgaerner@gmx.net> wrote:
> On Tue, Jul 24, 2012 at 09:59:35AM +0800, Sepherosa Ziehau wrote:
>> On Tue, Jul 24, 2012 at 9:57 AM, Sepherosa Ziehau <sepherosa@gmail.com> wrote:
>> > On Tue, Jul 24, 2012 at 3:24 AM, Sven Gaerner <sgaerner@gmx.net> wrote:
>> >> On Mon, Jul 23, 2012 at 09:44:06AM +0800, Sepherosa Ziehau wrote:
>> >>> On Mon, Jul 23, 2012 at 3:27 AM, Sascha Wildner <saw@online.de> wrote:
>> >>> > On Sun, 22 Jul 2012 21:16:54 +0200, Sven Gaerner <sgaerner@gmx.net> wrote:
>> >>> >
>> >>> >> On Sun, Jul 22, 2012 at 08:31:41PM +0200, Sascha Wildner wrote:
>> >>> >>>
>> >>> >>> On Sun, 22 Jul 2012 13:46:41 +0200, Sven Gaerner <sgaerner@gmx.net>
>> >>> >>> wrote:
>> >>> >>>
>> >>> >>> >[...]
>> >>>
>> >
>> > I mean following steps:
>> > 1) Add the following line into into /boot/loader.conf, then reboot:
>> >     hw.i8254.intr_disable="0"
>> > 2) sysctl hw.acpi.cpu.cx_lowest=C3
>>
>> I mean do step1) first, then do step 2) after step1)'s reboot.
>
> I did that, but I cannot set hw.acpi.cpu.cx_lowest=C3. I always get
> "Invalid argument" when running "sudo sysctl hw.acpi.cpu.cx_lowest=C3".

Hmm, maybe i8254 is not working at all.  Could you post following information:
- bootverbose dmesg w/ hw.i8254.intr_disable="0" in /boot/loader.conf
- sysctl kern.cputimer
- sysctl hw.acpi

Best Regards,
sephe

>
> Regards,
> Sven
>



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