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System-Ser
4 changed files with 47 additions and 138 deletions
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@ -1,10 +1,10 @@
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[Unit]
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Description=Mac-like-automatic-brightness as service
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Description=Mac like automatic brightness as service
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[Service]
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Type=simple
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Restart=on-failure
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RestartSec=5s
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Restart=no
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RestartSec=1
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ExecStart=/usr/local/bin/AutomaticBrightness.sh
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@ -1,19 +1,18 @@
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#!/bin/bash
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#How much light change must be seen by the sensor before it will act
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#How much light change must be seen by the sensor befor it will act
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LightChange=10
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#How often it check the sensor
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SensorDelay=1
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# Scale sensor to display brightness range
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# NOW WITH FLOAT SUPPORT
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SensorToDisplayScale=1
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# Scale sesor to displas brightness range
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SensorToDisplayScale=24
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# 12 steps is the most similar on a Macbook 2017 running Arch compared to MacOS
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LevelSteps=12
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# Plays the 12 step effectively at 30 FPS 32ms
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AnimationDelay=0.032
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#This should match your refesh rate other wise it will either change the back light more times than needed or too few for a smooth animation
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LevelSteps=60
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# The is should match the LevelSteps but in the acual time each event should take to see
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AnimationDelay=0.016
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# Read the variable names
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@ -21,12 +20,9 @@ MinimumBrightness=001
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# 2 : Default | 1 : Add Offset | 0 : Subtract Offset, Recommended not to change
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# 2 : Default | 1 : Add Offset | 0 : Subtract Offset, Recomended not to change
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op=2
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# Only look for flags -i or -d with an additional value
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# AutomaticBrightness.sh -i 100
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while getopts i:d: flag
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do
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case "${flag}" in
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@ -37,7 +33,6 @@ do
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esac
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done
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# Verify offset file exists and if so read it
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if [[ -f /dev/shm/AB.offset ]]
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then
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OffSet=$(cat /dev/shm/AB.offset)
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@ -47,10 +42,10 @@ else
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$(chmod 666 /dev/shm/AB.offset)
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fi
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#if no offset or its less than 0 make 0
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OffSet=$((OffSet < 0 ? 0 : OffSet))
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# relatively change number in Offset file and write it
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if [[ $op -lt 2 ]]
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then
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if [[ $op -eq 1 ]]
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@ -60,7 +55,6 @@ then
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OffSet=$((OffSet - num))
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fi
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# verify offset is not less than 0
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OffSet=$((OffSet < 0 ? 0 : OffSet))
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$(echo $OffSet > /dev/shm/AB.offset)
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@ -75,19 +69,14 @@ priority=19 # Priority level , 0 = regular app , 19 = very much background app
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# Set the priority of the current script, Thank you Theluga.
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renice "$priority" "$$"
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sleep 5
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# Get screen max brightness value
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MaxScreenBrightness=$(find -L /sys/class/backlight -maxdepth 2 -name "max_brightness" 2>/dev/null | grep "max_brightness" | xargs cat)
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# Set path to current screen brightness value
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BLightPath=$(find -L /sys/class/backlight -maxdepth 2 -name "brightness" 2>/dev/null | grep "brightness")
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# Set path to current luminance sensor
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LSensorPath=$(find -L /sys/bus/iio/devices -maxdepth 2 -name "in_illuminance_raw" 2>/dev/null | grep "in_illuminance_raw")
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#Set the current light value so we have something to compare to
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OldLight=$(cat $LSensorPath)
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while true
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@ -102,14 +91,16 @@ do
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fi
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Light=$(cat $LSensorPath)
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## apply offset to current light value
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Light=$((Light + OffSet))
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# Set allowed range for light
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MaxOld=$((OldLight + OldLight/LightChange))
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MinOld=$((OldLight - OldLight/LightChange))
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if [[ $Light -lt $LightChange ]]
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then
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MaxOld=$((OldLight + LightChange))
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MinOld=$((OldLight - LightChange))
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else
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MaxOld=$((OldLight + OldLight/LightChange))
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MinOld=$((OldLight - OldLight/LightChange))
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fi
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if [[ $Light -gt $MaxOld ]] || [[ $Light -lt $MinOld ]]
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then
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@ -117,15 +108,12 @@ do
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CurrentBrightness=$(cat $BLightPath)
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# Add MinimumBrightness here to not effect comparison but the outcome
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Light=$(LC_NUMERIC=C printf "%.0f" $(echo "scale=2; $Light + ( ($MaxScreenBrightness * ( $MinimumBrightness / 100 )) / $SensorToDisplayScale ) " | bc ))
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# Generate a TempLight value for the screen to be set to
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# Float math thanks Matthias_Wachter
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TempLight=$(LC_NUMERIC=C printf "%.0f" $(echo "scale=2; $Light * $SensorToDisplayScale" | bc))
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Light=$(( $Light + $MinimumBrightness ))
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# Check we do not ask the screen to go brighter than it can
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TempLight=$(($Light * $SensorToDisplayScale))
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if [[ $TempLight -gt $MaxScreenBrightness ]]
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then
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NewLight=$MaxScreenBrightness
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@ -133,46 +121,26 @@ do
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NewLight=$TempLight
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fi
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# How different should each stop be
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DiffCount=$(LC_NUMERIC=C printf "%.0f" $(echo "scale=2; ( $NewLight - $CurrentBrightness ) / $LevelSteps" | bc ))
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DiffCount=$(( ($NewLight - $CurrentBrightness)/$LevelSteps ))
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# Step once per Screen Hz to make animation
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for i in $(eval echo {1..$LevelSteps} )
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do
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# Set new relative light value
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NewLight=$(( $DiffCount ))
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if [[ $NewLight -lt 0 ]]
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then
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NewLight=$( echo "$NewLight" | awk -F "-" {'print$2'})
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NewLight=$(echo $NewLight-)
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else
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NewLight=$(echo +$NewLight)
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fi
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CurrentBrightness=$(cat $BLightPath)
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FakeLight=$(( $NewLight + $CurrentBrightness))
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if [[ $FakeLight -gt $MaxScreenBrightness ]]
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then
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NewLight=$MaxScreenBrightness
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echo "ERROR"
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else
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echo $FakeLight > $BLightPath
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fi
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# Format values appropriately for brightnessctl
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#if [[ $NewLight -lt 0 ]]
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#then
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#NewLight=$( echo "$NewLight" | awk -F "-" {'print$2'})
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#NewLight=$(echo $NewLight-)
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#else
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#NewLight=$(echo +$NewLight)
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#fi
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# Adjust brightness relatively
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#brightnessctl -q s $NewLight
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# Sleep for the screen Hz time so he effect is visible
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brightnessctl -q s $NewLight
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sleep $AnimationDelay
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done
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# Store new light as old light for next comparison
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OldLight=$Light
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fi
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27
README.md
27
README.md
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@ -1,27 +1,16 @@
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# Mac-like-automatic-brightness
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A simple script to provide a "Mac" like automatic brightness adjustemnt/ animation.
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## Now as a system service
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Run ```setup.sh``` to make it a service and automaticaly set your ```SensorToDisplacScale```
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Run ```setup.sh``` to make it a service
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made for the FrameWork laptop
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based on 2017 MacBook Pro
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read ```Configuration``` for detailed informatoion about what options you have to easily customize/ adjust the bightness or animation speed
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## Updating
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Run ```git pull``` to download the latest version
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Then run ```./setup -u``` to update the the service and script running on your system with newly downloaded / modifyed versions
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## Requires
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```bc```
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For running as your user you need to be part of the ```video``` group
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```sudo usermod -a -G video $USER``` if your not apart of the group
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If your installing as a system service your user dose not need to be apart of the group
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brightnessctl
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## Non 12th Gen Intel Framework Owners
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Your sensor has a diffrent range thant the 12th Gen Intel Framework laptop sensors, please see chart bellow
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@ -41,8 +30,6 @@ Your sensor has a diffrent range thant the 12th Gen Intel Framework laptop senso
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```/dev/shm/AB.offset | Stores current offset for the sensor```
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* Changing the offset of your backlight while the service is running is one way you increase or decease your screen bightness but keep the automatic adjustments when the lighting changes
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## Configuring
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@ -54,16 +41,14 @@ Your sensor has a diffrent range thant the 12th Gen Intel Framework laptop senso
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```LevelSteps``` Sets amount of brightness steps, recomended to match refeshrate
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```AnimationDelay``` Speed of the brightness animation(delay between each step), recomended screen refreshrate in seconds (0.16 of 60Hz)
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```AnimationDelay``` Speed of the brightness animation(delay between each step), recomended screen refreshrate in seconds
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```MaxScreenBrightness``` The highest value your screen supports, check ```/sys/class/backlight/intel_backlight/max_brightness``` on framework laptops
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```MinimunBrightness``` The minimum screen brightness, recomended minumim 001 so the backlight dosn't turn off
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### Run``` setup.sh -u``` to update the installed script and service
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~~ Other things to note but shouldn't have to adjust
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~~ Other things to note
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```Light``` The file where your lightsensor has its current value
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```CurrentBirghtness``` The file where your screen stores its current brightness
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```MaxScreenBrightness``` The highest value your screen supports, check ```/sys/class/backlight/intel_backlight/max_brightness``` on framework laptops
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54
setup.sh
54
setup.sh
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@ -1,58 +1,14 @@
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#!/bin/bash
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#
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case $1 in
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-u) echo "Updating Mac-like-automatic-brightness..."
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echo "Stopping AB service..."
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sudo systemctl kill AB
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echo "Updating AutomaticBrightness.sh..."
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echo "Cloning AutomaticBrightness.sh..."
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sudo cp AutomaticBrightness.sh /usr/local/bin/AutomaticBrightness.sh
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echo "Updating AB.service for systemD..."
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echo "Cloning AB.service for systemD..."
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sudo cp AB.service /etc/systemd/system/AB.service
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echo "Restarting AB service..."
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systemctl daemon-reload
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sudo systemctl start AB
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exit;;
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esac
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echo "Setting up AutomaticBrightness.sh as a service..."
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echo "Calibrating Light Sensor Scale..."
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echo "Cloning AutomaticBrighness.sh..."
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sudo cp AutomaticBrightness.sh /usr/local/bin/
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LSensorPath=$(find -L /sys/bus/iio/devices -maxdepth 2 -name "in_illuminance_raw" 2>/dev/null | grep "in_illuminance_raw")
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MaxScreenBrightness=$(find -L /sys/class/backlight -maxdepth 2 -name "max_brightness" 2>/dev/null | grep "max_brightness" | xargs cat)
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echo "Put your sensor in a bright light (outside works best)"
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read -p "Press Enter to continue..."
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Smax=$(cat $LSensorPath)
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Scale=$(echo "scale=2; $MaxScreenBrightness / $Smax" | bc)
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Final="SensorToDisplayScale=$Scale"
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awk -v new_phrase="$Final" '/SensorToDisplayScale=/{ print new_phrase; next } 1' AutomaticBrightness.sh > temp && mv temp AutomaticBrightness.sh
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TempSteps=($MaxScreenBrightness / 60)
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if [[ TempSteps -lt 17 ]]
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then
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Steps=$($MaxScreenBrightness / 16)
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NewStep="LevelSteps=$Steps"
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awk -v new_phrase="$NewStep" '/LevelSteps=/{ print new_phrase; next } 1' AutomaticBrightness.sh > temp && mv temp AutomaticBrightness.sh
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fi
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echo "Cloning AutomaticBrightness.sh..."
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sudo cp AutomaticBrightness.sh /usr/local/bin/AutomaticBrightness.sh
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sudo chmod u+x /usr/local/bin/AutomaticBrightness.sh
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echo "Cloning AB.service for systemD..."
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sudo cp AB.service /etc/systemd/system/AB.service
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echo "Cloning AB.service for systemD"
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sudo cp AB.service /etc/systemd/system/
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echo "Starting Service..."
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echo "Startin Service..."
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sudo systemctl enable AB
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sudo systemctl start AB
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