Created
January 9, 2017 23:27
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AW13 OLED Set Brightness
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| #!/bin/bash | |
| sleep 1 | |
| if [ -f ~/.brightness ] | |
| then | |
| read -r br < ~/.brightness | |
| bri=`echo "${br} * 100" | bc -l | xargs printf "%.0f\n"` | |
| echo $bri | |
| if [ ${bri} -gt 100 ] | |
| then | |
| br=1 | |
| fi | |
| xrandr --output eDP-1 --brightness "${br}" | |
| # If the previous command failed it's because the nvidia | |
| # card is active and it reports different display names | |
| if [ $? -gt 0 ] | |
| then | |
| xrandr --output eDP-1-1 --brightness "${br}" | |
| fi | |
| fi |
That sounds like setting the brightness value as a percentage. If you want to run the xrandr command directly, the brightness value must be between 0 and 1 (although if you set it to 0 the screen will turn off completely!).
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I tried to run the xrandr command directly into the terminal and it just turned plain white. Couldn't access the screen anymore. Had to reboot. Any idea why could that have happened?