Difference between revisions of "ThinkLight"
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| − | [[Image:Thinklight.jpg | + | {| width="100%" |
| + | |style="vertical-align:top;padding-right:20px;width:10px;" | [[Image:Thinklight.jpg|ThinkLight]] | ||
| + | |style="vertical-align:top" | | ||
| + | <div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;"> | ||
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. | 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.< | + | Note that the ThinkLight is not available on the G series ThinkPads. |
| − | + | </div> | |
| + | |} | ||
==Linux Support== | ==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. | 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 | Support for controlling the light with ACPI is provided by [[ibm-acpi]]. After installing it, a simple | ||
| − | + | {{cmd|echo on > /proc/acpi/ibm/light}} | |
switches it on and a | switches it on and a | ||
| − | + | {{cmd|echo off > /proc/acpi/ibm/light}} | |
switches it off again. | switches it off again. | ||
Revision as of 00:25, 28 February 2005
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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
{{{2}}} echo on > /proc/acpi/ibm/light
switches it on and a
{{{2}}} 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). ;)
