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Qt To Be Licensed Under GPL version 3

Qt is the standard framework for high performance, cross-platform application development. Trolltech ASA is licensing its Qt cross-platform development framework under the GNU General Public License version 3 (GPL v3), with immediate effect. GNU founder Richard Stallman said:

I am very pleased that Trolltech has decided to make Qt avaliable under GPL v3. This will allow parts of KDE to adopt GPL v3 too. Even better, Trolltech has made provisions for a smooth migration to future GPL versions if it approves of them.

Qt is already available under the GPL v2 and will continue to be so in addition to the GPL v3.

The GPL v3 license will make it easy and safe for free software developers to use Trolltech's Qt with the most recent license framework from the Free Software Foundation. Trolltech hopes that its move will inspire free software projects to use GPL v3 when programming with Qt.

Trolltech to adopt GPL 3 for Qt

Download of the day: KDE 4 Desktop

KDE4 has been released and available for download. KDE is a powerful graphical desktop environment for Unix and Linux workstations. It is based on the version 4 series of Qt (a cross-platform GUI application development framework).

From the announcement page:

The KDE Community is thrilled to announce the immediate availability of KDE 4.0. This significant release marks both the end of the long and intensive development cycle leading up to KDE 4.0 and the beginning of the KDE 4 era. It will contain a new multimedia API, called Phonon, a device integration framework called Solid and a new style guide and default icon set called Oxygen. It will also include the new desktop and panel user interface tool, called Plasma, which will have support for desktop widgets, similar to SuperKaramba or Apple's Dashboard widgets.

KDE 4 Desktop
(Fig. 01: The KDE v.4.0 Desktop)

The KDE 4.0 Visual Guide provides a quick overview of various new and improved KDE 4.0 technologies. Illustrated with many screenshots, it walks you through the different parts of KDE 4.0 and shows some of the exciting new technologies and improvements for the user.

Download KDE 4

=> Visit offical mirror to grab cutting edge KDE v4.0

Dolphin is a file manager for KDE focusing on usability. The KDE 3 version of Dolphin is in beta stage, but provides already most features for daily usage. Currently Dolphin gets ported for KDE 4.0. I really liked its simplicity.

The main features of Dolphin are:

* Navigation bar for URLs, which allows to navigate quickly through the file hierarchy.

* View properties are remembered for each folder.

* Split of views is supported.

* Network transparency.

* Undo/redo functionality.

* Renaming of a variable number of selected items in one step and much more

Download of the day: Dolphin File Manager for KDE Linux Desktop Picture

Install dolphin

Debian / Ubuntu Linux user, type:
$ sudo apt-get install dolphin

To start dolphin start KDE or type:
$ dolphin &

From the man page:

dolphin is not intended to be a competitor to Konqueror, the default KDE file manager: Konqueror acts as universal viewer being able to show HTML pages, text documents, directories and a lot more, whereas dolphin focuses on being only a file manager. This approach allows to optimize the user interface for the task of file management.

Download Dolphin File Manager

You can download Dolphin file manager here

What’s new in KDE version 4?

KDE an easy-to-use desktop environment for UNIX / Linux. KDE 4 is the next major release and it is scheduled for release on December 2007. The new version claims t make KDE faster and more memory efficient by leveraging the greater speed and efficiency of Qt 4.x and increased efficiency in the KDE libraries themselves. There is a nice review published by Korneliusz Jarzebsk:

KDE 4 is coming. It’s starting to look and behave mature enough to use it on a normal desktop. This article is a little introduction to what you might be expecting from the brand new KDE due later this year. It’s been a whole month when I’ve investigated the new environment called KDE 4. Honestly I wanted to wait till “Beta 3″, which should have appeared on 5th October. But as you all can see it has never happened. On the IRC channel #kde4-devel I was informed that the “Beta 3″ should have been tagged yesterday but unfortunately it didn’t turn out to be true. Not waiting any longer I made my mind and I have updated the SVN and have run the cmake.

What’s new in KDE version 4?
(KDE 4 Desktop)

=> KDE 4 Preview. Also don't forget to check KDE4 wikipedia page. It has more information and screen shots.

A typical question asked by many new Linux users. The answer is pretty simple:

Your partitions are not being unmounted properly when you last shutdown the Linux desktop. Linux needs to shutdown properly (I’m sure this applies to Windows and Mac OS too) before powered off. If you skip this step there could be data loss.

If you are using text based session (CLI), type following command as privileged user:
shutdown -h now
OR
halt

If you are using GUI (KDE / Gnome or any other Windows Manager) click on System > Quit button. Look out for shutdown button.

Do not unplug the power supply. Also use UPS (Uninterruptible power supply) to protect data and to avoid other problems. I recommend APC ups for continuous supply of electric power.

Updated for accuracy.

How To: Install KDE on the Nokia N800 Internet Tablet

The Nokia N800 Internet Tablet is a wireless Internet appliance from Nokia. It is powered by Debian Linux.

KDE and all it's supporting programs have been compiled for the Internet Tablet, and it works b-e-a-utifully. I've installed this sucker on my N770 and it purrs like a kitten, believe it or not ;)

How To: Install KDE on the Nokia N800 Internet Tablet

=> KDE on the IT

Following document was written to assist the reader in setting up and configuring a webcam, digital camera, or other video device in the Linux operating system. It outlines how to enable the necessary kernel and/or software support and various frame-grabber applications that can be used to access your device. It does not discuss the differences in graphic and video formats, the features and/or capabilities of particular devices, or the encoding or conversion of video formats.

My Experience with Logitech USB webcam

My experience is that many cameras work out-of-the-box :D . I have a Logitech USB webcam. I'm using xawtv and camorama software application to view, alter and save images from a webcam. Simply run the following command to configure web camera under Linux:
$ sudo apt-get install camorama xawtv

Linux.com has published an interesting but small how to:

If you want the old-time GNU/Linux experience, try configuring a Web camera. Unlike most peripherals, webcams are generally not configured during installation. Moreover, where printers have the Common Unix Printing System (CUPS) and its interfaces, with webcams you are generally thrown back on whatever resources you can find on the Internet and your own knowledge of kernel modules and drivers. These obstacles means that configuring webcams can be a challenge -- but with determination and thoroughness, and maybe a little luck, you can get your webcam running in less than an afternoon.

Also don't forget to check out:

Wireless network camera

I also recommend AXIS wireless network camera. It is perfect for monitoring various activities such as monitoring puppy, cat or babies at home, while you are at work or in your home-office. It offers excllent clear image quality. I’m also planning to install one more Axis camera outdoor for securing and monitoring outside activity. :)