Difference between revisions of "ThinkLight"

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==Models featuring this Technology==
 
==Models featuring this Technology==
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*ThinkPad {{I1400 2611}}
 
*ThinkPad {{A Series}}
 
*ThinkPad {{A Series}}
 
*ThinkPad {{R Series}}
 
*ThinkPad {{R Series}}
 
*ThinkPad {{T Series}}
 
*ThinkPad {{T Series}}
 
*ThinkPad {{X Series}}
 
*ThinkPad {{X Series}}
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[[Category:Glossary]]
 
[[Category:Glossary]]

Revision as of 03:19, 8 June 2005

ThinkLight

The ThinkLight is a little LED light integrated into the top edge of the display frame in the A, R, T and X ThinkPad models. It illuminates the ThinkPad's keyboard so that one can type in the dark without using an external light source. The ThinkLight can be controlled via the Fn-PageUp key combination or via ACPI on some of the newer models. Note that the ThinkLight is not available on the G series ThinkPads.

Linux Support

Controlling the ThinkLight with the keyboard works on all systems since it relies on the BIOS exclusively. Just press Fn-PageUp to toggle its state between on and off.

Support for controlling the light with ACPI is provided by ibm-acpi. After installing it, a simple 

# echo on > /proc/acpi/ibm/light

switches it on and a 

# echo off > /proc/acpi/ibm/light

switches it off again.

This allows one to control the light in scripts. Unfortunately, no known ThinkPad comes with a light sensor (yet). ;)

Models featuring this Technology

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