Re: No amdtemp sysctls, acpi errors, AMD Ryzen 5 2400G

From: Stefan Ehmann <shoesoft_at_gmx.net>
Date: Wed, 14 Nov 2018 00:20:22 +0100
On 11/13/18 10:14 PM, Conrad Meyer wrote:
> On Tue, Nov 13, 2018 at 1:04 PM Stefan Ehmann <shoesoft_at_gmx.net> wrote:
>> After kldload amdtemp I see the following sysctls:
>> dev.cpu.0.temperature: 77.1C
>> dev.amdtemp.0.core0.sensor0: 77.1C
>>
>> The temperature I see in BIOS is much lower (maybe around 40.0C). Don't
>> know if just the offset is wrong or the numbers are completely bogus.
>>
>> Numbers from sysutils/xmbmon look saner but not sure if they are correct.
> 
> You can adjust dev.amdtemp.N.sensor_offset as needed.  By default, the
> amdtemp sysctl gives you the unadjusted value.  On different Ryzen
> models the raw value is wrong by different amounts.  E.g. on my 1950X,
> I have sensor_offset set to "-27" to show correct temperature
> readings.
> 
> See this link for a table of offset values for various Ryzen models:
> https://www.guru3d.com/articles-pages/amd-ryzen-7-2700-review,7.html

Thanks for the link.

The 2700 has an offset of 0 though (2700X has 10).
And I'm seeing a difference of more than 30 degrees. I guess something
else must be happening here.
Received on Tue Nov 13 2018 - 22:20:26 UTC

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