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From: Kai-Heng Feng <>
To: Guenter Roeck <>
Cc: Chris Ouellet <>,,
	Linux Kernel Mailing List <>
Subject: Re: Ryzen 2700 Temperature offset?
Date: Sun, 10 Jun 2018 03:03:47 +0800	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

at 23:49, Guenter Roeck <> wrote:

> On Thu, Jun 07, 2018 at 11:03:13AM +0800, Kai Heng Feng wrote:
>> Hi Guenter,
>> A user thinks the Ryzen 2700 temperature may not be correct [1].
>> Can you take a look when you have time? Thanks.
>> Also, where can I find all these temperature offsets? I googled but with  
>> no
>> result.
> Problem is that the offsets are not documented in public, making it
> difficult to find out. For Ryzen 2700, there is currently no offset
> configured; I was told that there is none. For Ryzen 2700X, the offset
> is 10 degrees C.

I am still quite interesting where you get this information...

>> [1]
> The key here is the commit mentioned in the log (1b59788979acd). It does
> not only adjust the per-CPU offset, but also takes a configurable offset
> of 49 degrees C into account. You'll need to apply that patch in your
> kernel, or the temperature may be off by 49 degrees C.

So unless AMD shares these offsets value, we can never know what correct  
offsets are?


> Hope this helps. If not, please let me know. Note that I am travelling;
> responses may be delayed.
> Guenter

  reply	other threads:[~2018-06-09 19:03 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-07  3:03 Kai Heng Feng
2018-06-07 15:49 ` Guenter Roeck
2018-06-09 19:03   ` Kai-Heng Feng [this message]
2018-06-10  5:14     ` Guenter Roeck
2018-06-15 21:56       ` Rudolf Marek
2018-06-15 22:15         ` Grimm, Jon

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