Arch Linux

johannesg00

Member

Registered: 2010-11-30

Posts: 74

Lenovo X1 Carbon Gen6: Thermal Throttling

Hi,

when doing some CPU intensive stuff (e.g. compiling a kernel) I see error messages like this in the dmesg log:

[  588.051568] CPU0: Core temperature above threshold, cpu clock throttled (total events = 1)
[  588.051569] CPU4: Core temperature above threshold, cpu clock throttled (total events = 1)
[  588.051571] CPU1: Package temperature above threshold, cpu clock throttled (total events = 1)
[  588.051572] CPU5: Package temperature above threshold, cpu clock throttled (total events = 1)
[  588.051573] CPU7: Package temperature above threshold, cpu clock throttled (total events = 1)
[  588.051574] CPU2: Package temperature above threshold, cpu clock throttled (total events = 1)
[  588.051575] CPU3: Package temperature above threshold, cpu clock throttled (total events = 1)
[  588.051576] CPU6: Package temperature above threshold, cpu clock throttled (total events = 1)
[  588.051578] CPU4: Package temperature above threshold, cpu clock throttled (total events = 1)
[  588.051586] CPU0: Package temperature above threshold, cpu clock throttled (total events = 1)
[  588.052577] CPU4: Core temperature/speed normal
[  588.052577] CPU0: Core temperature/speed normal
[  588.052578] CPU1: Package temperature/speed normal
[  588.052579] CPU7: Package temperature/speed normal
[  588.052580] CPU5: Package temperature/speed normal
[  588.052581] CPU2: Package temperature/speed normal
[  588.052582] CPU6: Package temperature/speed normal
[  588.052583] CPU3: Package temperature/speed normal
[  588.052583] CPU0: Package temperature/speed normal
[  588.052585] CPU4: Package temperature/speed normal

Has somebody an idea whats wrong? As far as I know these MCE errors should only occur in extreme situations...

The CPU temps are around 70 degrees Celsius when the throttling kicks in.

Thanks!

Last edited by johannesg00 (2018-03-25 18:13:55)

johannesg00

Member

Registered: 2010-11-30

Posts: 74

Re: Lenovo X1 Carbon Gen6: Thermal Throttling

Update: This bug not only affects the X1C6 but all new Thinkpads (T480s, etc.).
The issue is described in this reddit post by a user named erpalma_: https://www.reddit.com/r/thinkpad/comme … tling_bug/ and https://www.reddit.com/r/thinkpad/comme … dpthermal/
It seems like this issue only can fixed by Lenovo, so there is a post in the official forum: https://forums.lenovo.com/t5/Linux-Disc … -p/4028489

I hope more people join the discussion so Lenovo will release a fix.

Ranguvar

Member

Registered: 2008-08-12

Posts: 2,577

Re: Lenovo X1 Carbon Gen6: Thermal Throttling

There is a nice script to fix here: https://github.com/erpalma/lenovo-throttling-fix

I packaged it and will upload to AUR soon.