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# Clevo W840SU

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The W840SU is a device by the taiwanese OEM manufacturer Clevo. It is sold as Schenker S403, Tuxedo Book UC1402 and Nexoc B401. A touch version exists as W840SU-T or UT1402. The hardware is configurable and includes an Intel Haswell Core i3/i5/i7, Intel HD 4400 graphics, a 7 mm harddrive, a mSATA device (storage, 3g/LTE modem) and a HDMI output.

## Installation

Installing Arch Linux is straightforward and most of the hardware works out of the box.

### Airplane Mode

Use xbindkeys to map the key 255 (NoSymbol) to some script that disables wifi and bluetooth and enables the airplane mode LED.

    $ cat ~/.xbindkeysrc
    "sudo /home/user/bin/setAirplane.sh"
       m:0x0 + c:255
       NoSymbol

Enable the LED with:

    # echo 1 > /sys/class/leds/tuxedo::airplane/brightness

### Webcam

The webcam needs to be activated by pressing FN+F10, otherwise you do not see the device.

    $ lsusb

    Bus 001 Device 002: ID 8087:8000 Intel Corp.
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 002 Device 003: ID 5986:0536 Acer, Inc
    Bus 002 Device 002: ID 8087:07da Intel Corp.
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

### Sound

Sound mostly works out of the box. Using PulseAudio simplyfies configuration, switching outputs is possible.

Microphone

The volume control for the microphone is mislabeled and reads Digital in ALSA.

### Touchpad

The touchpad works out of the box with the synaptics driver. All current features are supported including two finger scroll, two- and three finger click and optional mouse buttons for the edges. Use synclient for configuration. Four finger recognition and three finger swipe gestures do not seem to work, though.

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