Difference between revisions of "ThinkLight"

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This allows one to control the light in scripts. Unfortunately, no known ThinkPad comes with a light sensor (yet). ;)
 
This allows one to control the light in scripts. Unfortunately, no known ThinkPad comes with a light sensor (yet). ;)
  
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==Models featuring this Technology==
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*ThinkPad {{A Series}}
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*ThinkPad {{R Series}}
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*ThinkPad {{T Series}}
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*ThinkPad {{X Series}}
  
[[Category:Glossary]] [[Category:A20m]] [[Category:A20p]] [[Category:A21e]] [[Category:A21m]] [[Category:A21p]] [[Category:A22e]] [[Category:A22m]] [[Category:A22p]] [[Category:A30]] [[Category:A30p]] [[Category:A31]] [[Category:A31p]] [[Category:R30]] [[Category:R31]] [[Category:R32]] [[Category:R40]] [[Category:R50]] [[Category:R50p]] [[Category:R50e]] [[Category:R51]] [[Category:R52]] [[Category:T20]] [[Category:T21]] [[Category:T22]] [[Category:T23]] [[Category:T30]] [[Category:T40]] [[Category:T40p]] [[Category:T41]] [[Category:T41p]] [[Category:T42]] [[Category:T42p]] [[Category:T43]] [[Category:T43p]] [[Category:X20]] [[Category:X21]] [[Category:X22]] [[Category:X23]] [[Category:X24]] [[Category:X30]] [[Category:X31]] [[Category:X32]] [[Category:X40]] [[Category:X41]]
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[[Category:Glossary]]

Revision as of 12:25, 10 May 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