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How to set ThinkPad's brightness in linux (raw command)

February 16, 2009 - 09:30 — semicolon

Reference: http://www.thinkwiki.org/wiki/LCD_Brightness

Full brightness
echo 100 > /proc/acpi/video/VID1/LCD0/brightness

Totally Dim
echo 20 > /proc/acpi/video/VID1/LCD0/brightness

Note: brightness value must be in this set [20, 30, 40, ... 100]

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