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Add Thermald Conf FIle for AMD Surface Laptop 4 (#572)

Merge pull-request #572.

A new thermald configuration file for the AMD version of the Surface
Laptop 4. It includes the ability to turn the CPU's Turbo Boost on and
off as a cooling measure.
astejko il y a 3 ans
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contrib/thermald/surface_laptop_4a/README.md

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+# Example thermal-conf.xml File
+
+A thermald configuration file tested on a Surface Laptop 4 (AMD) device. This file is adapted from the surface_laptop_1 configuration file in order to include control over CPU Turbo Boost.
+
+## File Description
+
+A new sensor (CPU_TEMP) is defined as the die temperature of the k10temp sensor, which can be found in the following directory:
+```
+/sys/class/hwmon/hwmon1/
+```
+The trip point is set to 65° C, and can be freely adjusted to maintain a desired temperature. The first cooling device that is activated is the Processor cooling device which can be found the thermal directory:
+```
+/sys/class/thermal/
+```
+
+The second cooling device is set to turn off CPU Turbo Boost when the trip point is reached.The status of boost can be queried with the following command:
+```
+cat /sys/devices/system/cpu/cpufreq/boost
+```
+
+
+## Installation
+
+Deactivate thermald with the following command:
+
+```
+sudo systemctl stop thermald.service
+```
+
+Place thermal-conf.xml into the following directory:
+
+```
+\etc\thermald\
+```
+Restart thermald:
+
+```
+sudo systemctl start thermald.service
+```
+
+If it doesn't run, then you may need to remove the --adaptive flag in thermald.service
+

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contrib/thermald/surface_laptop_4a/thermal-conf.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<ThermalConfiguration>
+  <Platform>
+    <Name>Override</Name>
+    <ProductName>*</ProductName>
+    <Preference>QUIET</Preference>
+    <ThermalSensors>  
+      <ThermalSensor>  
+	<Type>CPU_TEMP</Type>  
+	<Path>/sys/class/hwmon/hwmon1/temp2_input</Path>  
+	<AsyncCapable>0</AsyncCapable>  
+      </ThermalSensor>  
+    </ThermalSensors>  
+    <ThermalZones>
+      <ThermalZone>
+        <Type>cpu</Type>
+        <TripPoints>
+	  <TripPoint>
+            <SensorType>CPU_TEMP</SensorType>
+            <Temperature>65000</Temperature>
+            <type>passive</type>
+            <ControlType>SEQUENTIAL</ControlType>
+	    <CoolingDevice>
+              <index>1</index>
+              <type>Processor</type>
+              <influence>100</influence>
+              <SamplingPeriod>15</SamplingPeriod>
+            </CoolingDevice>
+	    <CoolingDevice>
+              <index>2</index>
+              <type>turbo</type>
+              <influence>50</influence>
+              <SamplingPeriod>60</SamplingPeriod>
+	      <TargetState>0</TargetState>
+            </CoolingDevice>
+          </TripPoint>
+        </TripPoints>
+      </ThermalZone>
+    </ThermalZones>
+    <CoolingDevices>
+      <CoolingDevice>
+        <Type>turbo</Type>
+        <Path>/sys/devices/system/cpu/cpufreq/boost</Path>
+        <MinState>1</MinState>
+        <MaxState>0</MaxState>
+        <DebouncePeriod>60000</DebouncePeriod>
+      </CoolingDevice>
+    </CoolingDevices>
+  </Platform>
+</ThermalConfiguration>