Re: [qubes-users] Hardware Issue: Unable to get fans to turn on which is causing my laptop to overheat, fan_mode set to 0

['awokd' via qubes-users]

On Sat, August 18, 2018 2:28 pm, Devin Stagner wrote:
> Hello Community,
>
>
> I have been trying to solve the issue of my fans not turning on and my
> laptop sustaining quite hot temperatures.
>
> My computer is a Lenovo Yoga 920
>
>
> I have tried:
> Installed and configured thinkfan following these instructions
>  pad+running+Qubes+OS> Sensors do not show any fans that I can find
>
>
> I searched the computer for fans using
> find /sys/devices -type f -name "*fan*" which gives me
> /sys/devices/pci:00/?00:lf.0/PNP0C09:00/VPC2004:00/fan_mode
>
>
> I found that fan_mode is either 0 for manual or 1 for automatic fan
> control. I thought that since I have been unsuccessful with setting
> manual fan control that I could perhaps change it to automatic, but when
> I edit the file to 1, it doesn't do anything and rebooting resets it back
> to 0.
>
> Perhaps someone can inform me if I am going about this the right way or
> suggest another way to get the fans working on my laptop?

Firmware update? Check the UEFI config too; might be a way to set fan
mode/speed. Usually expect fans to be controlled by the embedded
controller if the OS doesn't pick them up. Could maybe also temporarily
try booting it with a recent Debian and see if that handles the fans any
better, might give an idea where to look in Qubes/Xen.


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[qubes-users] Hardware Issue: Unable to get fans to turn on which is causing my laptop to overheat, fan_mode set to 0

[Devin Stagner]

Hello Community,

I have been trying to solve the issue of my fans not turning on and my laptop 
sustaining quite hot temperatures.

My computer is a Lenovo Yoga 920

I have tried:
 Installed and configured thinkfan following these instructions 

 Sensors do not show any fans that I can find

 I searched the computer for fans using
  find /sys/devices -type f -name "*fan*"
  which gives me
 /sys/devices/pci:00/?00:lf.0/PNP0C09:00/VPC2004:00/fan_mode

 I found that fan_mode is either 0 for manual or 1 for automatic fan 
control. I thought that since I have been unsuccessful with setting manual fan 
control that I could perhaps change it to automatic, but when I edit the file 
to 1, it doesn't do anything and rebooting resets it back to 0.

Perhaps someone can inform me if I am going about this the right way or suggest 
another way to get the fans working on my laptop?

Thank you,

Devin Stagner

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