Difference between revisions of "Clevo W840SU"

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[[Category:Clevo]]
 
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.
 
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.
  

Revision as of 16:25, 16 March 2014

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 Archlinux is straightforward and most of the hardware works out of the box.

Airplane Mode

To make use of the flightmode button, install tuxedo-wmi from the AUR and load the tuxedo-wmi module. 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

Battery Monitoring

The battery does not report any discharge information.

$ cat current_now 
cat: current_now: No such device

Current monitoring is only possible by following the charge_now and voltage_now, but this gives only a rough estimation.

Brightness Keys

Brightness keys are not recognized while booting and work magically once KDE is started.

Problems

Suspend/Hibernate/Resume

Resuming with an inserted SD stops after reading the image. This is most likely a problem with the cardreader driver and is still investigated.

Brightness Keys

The brightness keys stop working after an external display was connected. This may be due to the fact, that the device exposes two brightness controls:

$ ls /sys/class/backlight/
acpi_video0  intel_backlight

Changing the brightness is still possible via the inte_backlight control but not via ACPI, which is used by KDE.