ThinkLight

2013-07-22T13:26:44Z

Lufterd: /* Models featuring this Technology */

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[[Image:Thinklight.jpg|ThinkLight]]
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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, X, Z and i Series 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 {{key|Fn}}{{key|PageUp}} key combination or via ACPI on some of the newer models. The LED is amber on some models (e.g. X30s, X40s), and white on others (e.g. T40s).
Note that the ThinkLight is not available on the G series ThinkPads, nor on the X41 Tablet.
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==Linux Support==
Controlling the ThinkLight with the keyboard works on all systems since it relies on the BIOS exclusively. Just press {{key|Fn}}{{key|PageUp}} to toggle its state between on and off.

===Software Control via thinkpad-acpi===
Support for controlling the light with ACPI is provided by [[thinkpad-acpi]]. After installing it, a simple
:{{cmdroot|echo 255 > /sys/class/leds/tpacpi\:\:thinklight/brightness}}
switches it on and a
:{{cmdroot|echo 0 > /sys/class/leds/tpacpi\:\:thinklight/brightness}}
switches it off again.

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

To use these controls in scripts without root permissions, you should run
:{{cmdroot|chmod 666 /sys/class/leds/tpacpi\:\:thinklight/brightness}}, which is probably best done using udev.

===Applications===
*'''led-notification''': Pidgin plugin to use any LED to indicate new messages. I've forked [http://github.com/Sitwon/led-notification led-notification] to support the ThinkLight via [[thinkpad-acpi]]. The plugins below either weren't compatible with the latest pidgin or didn't compile for me. The original author of led-notification seems MIA. Another fork [http://github.com/xmw/pidgin-led-notification pidgin-led-notification] to write user defined strings (added to Gentoo/Linux)
*'''gaim-thinklight''': If you are using [http://gaim.sf.net GAIM], the [http://www.joachim-breitner.de/blog/archives/38-Created-gaim-thinklight.html gaim-thinklight] plugin will enable you to use the ThinkLight as an indicator for new messages. This depends on [[thinkpad-acpi]].
*'''gaim-lighthink''': [http://www.chris-lamb.co.uk/code/gaim-lightthink/ gaim-lightthink] is an alternative to gaim-thinklight.
*'''pidgin-blinklight''':[http://packages.debian.org/unstable/net/pidgin-blinklight pidgin-blinklight] is a replacement for gaim-lighthink intended for use with [http://pidgin.im/ Pidgin].
*'''rocklight''': [http://hunz.org/ rocklight] is a xmms visualization plugin that makes the ThinkLight flash to the beat of your music. The package also includes a standalone stroboscope mode program.
*'''thinkblinkd''':[http://badcode.de/downloads/thinkblinkd-0.1.7.tar.gz] Thinkblinkd is a python daemon to control the thinklight (and possibly other lights on your Thinkpad) it comes with the daemon and a control script.
*The [[script for theft alarm using HDAPS]] optionally flashes the ThinkLight when the alarm is armed (disabled by default, to enable set <tt>$use_light=1</tt>).
*'''kopete-thinklight''':[http://kde-apps.org/content/show.php?content=47886] This plugin for kopete will enable the usage of the thinklight as notifiaction for new messages.
*'''stupid little hack to blink the ThinkLight''': [http://paste.lisp.org/display/37500] A little C program that may be set SUID so that you can use it from non-privileged programs that needs to do a little notification.
*'''thinkalert''': [http://www.mike.tl/view/Main/ThinkAlert] Another C program that may be set SUID to allow non-privileged programs to manipulate the ThinkLight. Adds some features over the "stupid little hack to blink the ThinkLight" program.
*'''thinklight-notification''': This [http://ubuntuforums.org/showthread.php?t=1017263 Evolution plugin] notifies the user with a blinking light whenever a new message has arrived.
*'''ThinkBlink''': [http://pikeypl.com/index.php?show=blink_en blink.sh] is an universal bash script making ThinkLight blink. It can be used with any application.

==Windows support==
Likewise, controlling the ThinkLight with the keyboard works without any additional software. The Hotkey Features software from IBM/Lenovo adds OSD icons that appear when the light is turned on/off.

===Software control via Hotkey Features===
The Hotkey Features software exposes an interface that allows (among other things) to control the ThinkLight. See [[Python script for Windows to control ThinkPad features]] for more information.

==Models featuring this Technology==
*ThinkPad {{i1400}}, {{I1460}}, {{I1480}}, {{I1482}}, {{I1483}}, {{I1492}}
*ThinkPad {{A Series}}
*ThinkPad {{R Series}}
*ThinkPad {{T Series}}
*ThinkPad {{W Series}}
*ThinkPad {{X20}}, {{X21}}, {{X22}}, {{X23}}, {{X24}}, {{X30}}, {{X31}}, {{X32}}, {{X40}}, {{X41}}, {{X60}}, {{X60s}}, {{X61}}, {{X61s}}, {{X200}}, {{X200s}}, {{X201}}, {{X201s}}, {{X220}}, {{X230}}, {{X300}}, {{X301}}
*ThinkPad {{Z60m}}, {{Z60t}}, {{Z61m}}
*ThinkPad {{S30}}, {{S31}}

[[Category:Glossary]]

Microphone Mute Button

2013-06-09T12:39:13Z

Lufterd:

== General ==
Some Thinkpads come with a Microphone Mute Button possibly with an led.

It does not work on Ubuntu, a bug has been reported and a patch has been proposed: https://bugs.launchpad.net/ubuntu/+source/udev/+bug/408903

== Workaround using acpid ==
Pressing the mic mute botton will generate a acpi event
$ acpi_listen
ibm/hotkey HKEY 00000080 0000101b
add a acpid rule to handle this event in {{path|/etc/acpi/events/lenovo-mutemic}}:
event=ibm/hotkey HKEY 00000080 0000101b
action=/etc/acpi/lenovo-mutemic.sh
the script ({{path|/etc/acpi/lenovo-mutemic.sh}}) to toggle the mice look like this:
<pre>
#!/bin/bash

led="/sys/devices/platform/thinkpad_acpi/leds/tpacpi::micmute/brightness"
user=$(who | awk '/0\.0/{print $1; exit;}')
[[ -z $user ]] && user=root
if [[ $(amixer sget Capture) == *"[on]"* ]]; then
logger "Microphone is now muted (for $user) $USER"
amixer sset Capture nocap
[[ -f $led ]] && echo 1 > $led
sudo -u $user DISPLAY=":0.0" notify-send -i microphone-sensitivity-muted-symbolic "Microphone" "Microphone is now <b>MUTED</b>"
else
logger "Microphone is now on (for $user)"
amixer sset Capture cap
[[ -f $led ]] && echo 0 > $led
sudo -u $user DISPLAY=":0.0" notify-send -i microphone-sensitivity-high-symbolic "Microphone" "Microphone is now <b>ON</b>"
fi
</pre>
Explanation:
* <tt>led</tt> contain the path to the led in the mute botton (see below)
* <tt>user</tt> is the name of the user, which is currently signed in in X11 and <tt>notify-send</tt> will send a notification to that user. Remove these lines if you don't like it.
* Pressing the button will toggle the state of the ALSA capture device, which is maybe not optimal in all cases as it disables all capture devices. <tt>Mic</tt> would be another choice, but on some thinkpads it is named <tt>Internal Mic</tt>.

ALSA will not remember the state of the led at startup, so one need another small start-up script:
<pre>
#!/bin/bash

led="/sys/devices/platform/thinkpad_acpi/leds/tpacpi::micmute/brightness"
if [[ $(amixer sget Capture) == *"[off]"* ]]; then
[[ -f $led ]] && echo 1 > $led
fi
</pre>
and put it in {{path|/etc/local.d/lenovo-mutemic.sh}}.

==Needed for models==
{{T410}}, {{T410s}}, {{X230}}

ThinkWiki - User contributions [en]

ThinkLight

Microphone Mute Button