Lubuntu desktop

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1 Introduction

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LUbuntu is a light-weighted Ubuntu desktop system based on LXDE. It has the following features:
    Light-weighted － it consumes relatively less CPU resources than a regular ubuntu. When a system's RAM is sufficient it can achieve much better performance.
    Less power consumption － it consumes relatively less power or resources than a regular ubuntu to achieve the same performance.
    Compact & straightforward － its desktop is based on GTK+ 2 and supports multiple languages.
    Easy to use － 提供用户如微软Windows般的应用程序列表。
    Customizable － 用户可以轻易自定义LXDE的外观。
    Compatible － it is compatible with freedesktop.org.
The Lubuntu Desktop released for FriendlyElec's S5P4418 and S5P6818 based boards has been optimized for adopting Mali400. It has driver support for X.org and supports Hardware Cursor, OpenGL acceleration and so on.

2 Applicable Platforms & Main Features

CPU	OpenGL ES	Hardware accelerated video decoding	Kernel Version
S5P4418	Yes	gstreamer 1.0	4.x
S5P6818	Yes	gstreamer 1.0	4.x
Allwinner H3	Yes	ffmpeg	3.x

3 FriendlyCore User Account

Regular User Account:

   User Name: pi
   Password: pi

Root:

   User Name: root
   Password: fa

4 Work with OpenGL ES

Open a command line utility and run the following command:

glmark2-es2

5 Work with USB Camera

Connect a USB camera e.g. Logitech C270 to a board, open the "Other" menu, start the xawtv application you will be able to review with your camera.

6 Rotate Display under Lubuntu Desktop

Firstly remove the "armsoc" configuration file:

sudo rm -f /usr/share/X11/xorg.conf.d/20-armsoc.conf

Create a new file "/etc/X11/xorg.conf":

sudo vi /etc/X11/xorg.conf

Here is the content of a typical xorg.conf file:

Section "Monitor"
    Identifier          "Primary"
    VendorName          "FriendlyARM"
EndSection
 
Section "Device"
    Identifier          "Primary"
    Driver              "fbdev"
    Option              "fbdev" "/dev/fb0"
    Option              "Rotate" "CW"
EndSection

The configuration file sets display to rotate 90 degrees. The rotation angle is defined by "Rotate" which can be set to one of the following values:
CW Rotate 90 degrees
UD Rotate 180 degrees
CCW Rotate 270 degrees
Save and reboot your board or start the lightdm service to make your change effective.

7 Update Log

7.1 Dec-19-2017

• Released English Version