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Date:      Thu, 18 Aug 2016 07:47:33 +0200 (CEST)
From:      Adam Pribyl <pribyl@lowlevel.cz>
Cc:        freebsd-acpi@freebsd.org
Subject:   Re: Problems with CPU throttling on HP 15-n066us laptop
Message-ID:  <alpine.DEB.2.11.1608180741370.5403@sandbox.cz>
In-Reply-To: <1471488612.2196853.698646081.0844D23B@webmail.messagingengine.com>
References:  <1471488612.2196853.698646081.0844D23B@webmail.messagingengine.com>

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FreeBSD 10 has throttling disabled. I can confirm the throttling is saving 
almost nothing, it is much better to use Cstates:
https://wiki.freebsd.org/TuningPowerConsumption


On Wed, 17 Aug 2016, am_dxer@fastmail.fm wrote:

> Hello,
> I purchased a new laptop for FreeBSD and am having some problems with
> CPU throttling. This laptop has an aMD a10-5745m processor. I cannot
> start powerd and the frequency levels in dev.cpu are absent. I tried
> with 11 and when that didn't work, I upgraded to Current. The laptop is
> running very hot and the fans are often running at a high speed so I
> think the cpu is running near full speed.  This is the only issue I am
> having in general use of the laptop. I will include the url for my asl
> below as well as the output of dmesg after boot -v and sysctl hw.acpi. I
> noticed messages like "acpi_ec0: EcCommand: no response to 0x84" near
> the bottom of the dmesg but honestly don't know enough about acpi to say
> whether this could be causing the problem. I tried Googling the error
> and found people who seemed to be having trouble with temperature
> readings and battery status. For me, the battery status is working fine
> when I check it via acpiconf although I did notice some unusual
> temperature readings in the dmesg output. There are some other
> temperature readings that appear in sysctl but I would have to study
> them more during a work session to see if they remain reasonable. Thanks
> in advance for any help.
>
>
> asl url: http://pasted.co/5770b687
>
> boot-v output: http://pasted.co/c8e9fb89
>
> hw.acpi output: http://pasted.co/cc611266



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