thinkpad
this turns external logo light off:
echo 0 | sudo tee /sys/class/leds/tpacpi\:\:lid_logo_dot/brightness
and this turns external logo light on:
echo 255 | sudo tee /sys/class/leds/tpacpi\:\:lid_logo_dot/brightness
this turns external logo light off:
echo 0 | sudo tee /sys/class/leds/tpacpi\:\:lid_logo_dot/brightness
and this turns external logo light on:
echo 255 | sudo tee /sys/class/leds/tpacpi\:\:lid_logo_dot/brightness
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