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Thursday, March 31, 2011

5 apps for Ubuntu (KDE) (maketecheasier)

1. Faster User Switch

If you happen to share a computer with one or more individuals, switching users is very important. This little plasma widget makes it easy to select a currently logged-in user and switch to that account. It can display user avatars, their names, or both. It is a nice widget to add to a panel for easy access. It also provides a quick interface for starting new user sessions.

Fast user switch

2. Kbackup

Kbackup has been around for a long time, but it just received an update. With it you can quickly and easily backup any directory on your computer, specify where you want the backups to go, and have them archived in the folder or device of your choice. This app is lightweight, simple, and does exactly what it says.

Packages for Kbackup are available in Ubuntu repositories and other Linux distributions.

kbackup

3. Converseen

This nifty little application is a must for anyone who works with a great deal of images. It is a pure Qt app, rather than a KDE one, but that means it still integrates perfectly with KDE. With Converseen you can convert batches of images to any format, any size, any resolution, and to any naming scheme you want. It allows you to make multiple changes on the fly and then save the new images wherever you want. Best of all, Converseen supports just about every image format you can imagine.

Converseen

4. Muon Package Management Suite

The graphical package manager frontends for KDE have always felt a bit like second-class citizens to Synaptic for GTK. Muon comes very close to evening the playing field. With it you can search, update, install, and receive update notifications for packages with ease. Muon Software Center provides a more visual approach to installation, similar to Ubuntu Software Center. Based on QApt, the entire application suite is lightweight and fast, without some of the hiccups of other frontends.

Muon is available in many Linux distribution repositories.

Muon

5. Clementine

Not everyone was in love with the new interface and features of Amarok 2 that came with KDE 4. For those who still love the old Amarok 1.4 look and feel, Clementine is a Qt music app, inspired by that code tree with quite a bit of its own unique features. Features include lyrics, artist bios, tabbed playlists, Wii remote support, visualizations, iPod, iPhone, and mass storage USB support, album cover art, Internet music (Last.fm, SomaFM, Magnatune, Jamendo, and Icecast), and music format conversion.

You can download Clementine for Linux, Windows, Mac OS X, or the source code for other operating systems.

Clementine




Saturday, March 26, 2011

Quick response codes

OMHGUbuntu had an interesting article

QR Codes are time-saving shortcuts: sort of hyperlinks that can be put on paper to follow.

A Quick Response is a ‘two-dimensional barcode’ made up of black squares on a white background. Used in Android and Blackberry mobile phones for reading URL's.

The creation of QR codes in Ubuntu is simple, though command-line based. You will need to install ‘qrencode‘ from the Ubuntu Software Center - you can search for ‘qrencode’ manually, or use a terminal :

sudo apt-get install qrencode

Once Qrencode has been successfully installed you can create QR codes using the Terminal and the following command structure: -

qrencode -o- [filename.png] '[text or URL to encode]' 

For instance a command to create a link to google in your homefolder  you would run: -

qrencode -o google.png 'http://www.google.com'

this outputs the following: -
Creating QR codes on linux: 3x3

You can make the ‘pixels’ used in the code bigger by using the ‘-s‘ argument. Let’s make the same QR code but with the square pixels increased to 6×6 and have the .png saved somewhere else, e.g. your desktop:

qrencode -o ~/Desktop/google.png -s 6 'http://www.google.com'

The result is:





Larger QR code

 A Gui is being developed by David Green. Read more about that here:

https://launchpad.net/qr-code-creator

You could use the web-based graphical interface to Google's QR generator at http://zxing.appspot.com/gener... and as for reading QR codes on the desktop, I've found an AIR app that works OK at http://www.dansl.net/blog/?p=2...

The Google Charts API does this. See http://code.google.com/apis/ch... An example: http://chart.apis.google.com/c...

Friday, March 25, 2011

Enable webGL in firefox 4 in Ubuntu

This tip came from : LINK

WebGL is a Web-based Graphics Library. It extends the capability of the JavaScript programming language to allow it to generate interactive 3D graphics within any compatible web browser.
WebGL is a context of the canvas HTML element that provides a 3D computer graphics API without the use of plug-ins.

Problem
After recent installation of firefox 4 i am getting the following error message
This Browser does not support WebGL
Solution
First you need to install the following package
sudo apt-get install libosmesa6
After installing above package open your browser and type about:config address bar and search for webgl.osmesalib now you need to add string type as /usr/lib/libOSMesa.so.6
Finall restart your firefox
You can check if webgl is working or not go to https://demos.mozilla.org/en-US/ and play 360° Video.

Thursday, March 24, 2011

Firefox 4.0 for Ubuntu 10.4 and 10.10

Ubuntu 10.04 and 10.10 users wanting to upgrade to the latest release of Mozilla Firefox can do so by adding the Firefox Stable PPA to their system sources.

To do this, open up the Ubuntu Software Center, head to Edit > Software Sources and click the ‘Other Software’ tab. Press ‘Add’ and then paste ppa:mozillateam/firefox-stable into the relevant field.
After adding the PPA you will be prompted to update your sources. Once done you can head to System > Administration > Update Manager to perform an upgrade

Alternatively you can do the above via the Terminal (Applications > Terminal).  Just enter the following two commands separately, entering your password when asked: - 

sudo add-apt-repository ppa:mozillateam/firefox-stable

sudo apt-get update && sudo apt-get upgrade

Friday, March 18, 2011

NTFS in Maverick Meercat

NTFS Configuration Tool (ntfs-config) is tool that is used to configure all of your NTFS devices to allow write support via a friendly gui and auto mount them.

Since Ubuntu 10.10 NTFS Configuration Tool won't start.


To fix this after installing NTFS Configuration Tool
sudo apt-get install ntfs-config
run this in terminal
sudo mkdir -p /etc/hal/fdi/policy
Now run NTFS Configuration Tool.

Shotwel update in Lucid Lynx

 
Shotwell is the default photo manager for Ubuntu. In order to get updates to the app, you need to use the PPA. The creators of Shotwell will not push the newest version, 0.8, to their PPA. The reason for this is as follows.
It turns out we can't easily release Shotwell 0.8 for Lucid in the Yorba PPA.  The problem is that Lucid has only Vala 0.8, but Shotwell requires Vala 0.10 to build.  We can't pull in Vala from the Vala PPA, because that would give us version 0.11, which can't be used to build Shotwell either (see #2638).  There's no easy workaround, so I'm marking this as wontfix.
Fortunately Martin Wimpress has provided an alternative PPA for Lucid users. He created a PPA containing the latest version. Martin points out you can Shotwell in many other PPAs, but they contain many other applications. This PPA does not contain any other apps. There are dependencies from the Yorba PPA so you need that PPA too.

To install the PPA, run the following commands

sudo apt-add-repository ppa:yorba/ppa
sudo apt-add-repository ppa:flexiondotorg/shotwell
sudo apt-get update
sudo apt-get install shotwell

Saturday, March 12, 2011

DeltaDIO (Envy24)

Automatic sound card detection isn't able to configure the
Delta card correctly, the card seems to be a bit too exotic
for that. So I'd say it's a HAL and/or PulseAudio problem.

Since the configuration process succesfully manages to open
the device - after much struggling - you probably can make
it work with static device configuration. The thing that the
configuration finally stumbles is that the channel map for
the sink and source aren't valid. That's because there isn't
a default channel map defined for 10 and 12 channels.

So, what you'll have to do is edit /etc/pulse/default.pa.
Comment out module-hal-detect and module-detect, and then
add these lines (if you don't need the sources, leave them
out):

# Load the on-board device:
load-module module-alsa-sink sink_name=intel-hda_out device=hw:0
load-module module-alsa-source source_name=intel-hda_in device=hw:0

# Load Delta 44:
load-module module-alsa-sink sink_name=delta_out device=hw:1 channels=10 channel_map=left,right,aux0,aux1,aux2,aux3,aux4,aux5,aux6,aux7
load-module module-alsa-source source_name=delta_in device=hw:1 channels=12 channel_map=left,right,aux0,aux1,aux2,aux3,aux4,aux5,aux6,aux7,aux8,aux9

# Set the default sink and source (not mandatory, intel-hda
# would probably be used without this):
set-default-sink
delta_out set-default-source delta_in


That configuration makes Delta a stereo device, in the sense
that if you play surround content, there will be sound only
in the first two channels. If you want a surround setup (or
want to have the stereo output on some other physical
connector(), edit the channel maps. Valid channel names are
listed in near the beginning of this page (under the "Device
Drivers" heading):

http://www.pulseaudio.org/wiki/Modules

If you wonder why I didn't set the 'channels' argument of
Delta to 2, that's because it seems that the device can't be
opened for just two channels. The auto-configurator managed
to open the device with 10 out and 12 in channels, that's
why I'm using those values.

This setup makes the assumption that the on-board device
will always be hw:0 and Delta will be hw:1. This isn't
necessary a valid assumption.

Friday, March 11, 2011

Burg to customize Grub2

On howtogeek i read an interesting article about customizing your grub2 menu.

To accomplish this, you need to use an add-on called BURG, which is a Brand-new Universal loadeR based on Grub and is created by Bean. It has much prettier GUI and it supports themes and customizations.

Installing BURG

First, start by adding the PPA. Open a terminal window and insert the following command:
sudo add-apt-repository ppa:bean123ch/burg && sudo apt-get update

Once completed, close the terminal window and start Synaptic Package Manager. You’ll find it in System > Administration > Synaptic Package Manager. Use the search box to search for “burg” and mark it for installation then click apply.
Note: Use Synaptic Package Manager to install Burg instead of the terminal as you may face problems.
While installation is in progress you’ll be faced by Burg settings window. For the first window, Just don’t make any changes and click forward.
In the second window, you’ll have to tell Burg where to be installed. Choose your Ubuntu’s root drive, or if you have a separate /boot partition choose it instead.
Last thing to do is make sure Burg will boot up correctly and that’s by entering this command in a terminal window.
sudo update-burg
The installation and configuration is now done. You can now restart and the Grub bootloader screen will be replaced by Burg. While at the boot screen, press F1 for help and other shortcuts, F2 for a list of themes you can use and F3 to change screen resolution.

Installing Themes

This is the best feature in Burg. You can install themes all the time. Better still, it’s as easy as downloading a file and copying it to /boot/burg/themes. First off, we start by downloading the theme from gnome-look.org. Unfortunately, There is no category yet on the site for Burg so you’ll have to use the search box on the left to find the themes. You can also find themes using Google. Once you download the theme, copy it to /boot/burg/themes using this command:
sudo cp *PathToFile*/Fortune-BURG-v03.tar.gz /boot/burg/themes

Adjust the command according to your download location and file name. After downloading and copying the theme, run the following command so Burg know what you have done.
sudo update-burg
Now the theme has been added to the list. Now restart and press F2 to use. Now you have a nice colorful theme for your boot menu.

Tuesday, March 8, 2011

Copy Flashfiles in firefox

Read all about it here

or use this script on your desktop, or make it yourself:



!/bin/bash
#
# FLASHCOPY
#
# Will ieterate through all open copies flashplayer and copy flash video to the
# current folder (or specified directory) with the .flv extension added.

args=("$@")

args=`echo $args | sed 's/[/]$//'`

pids=`eval pgrep -f flashplayer`
for pid in $pids
do
lsoutput=$(lsof -p $pid | grep '/tmp/Flash[^ ]*')

IFS=$'\n'
for line in $lsoutput; do
lsout1=`echo $line | awk '{print "/proc/" $2 "/fd/" $4}' | sed 's/[rwu]$//'`
lsout2=`echo $line | awk '{print $9}' | awk -F '/' '{print $3}'`

if [ -n "$args" ];then
if [ -d $args ]; then
echo "Copying $lsout2 to $args/"
eval "cp $lsout1 $args/$lsout2.flv"
else
echo "The directory \"$args\" doesn't exist"
break
fi
else
echo "Copying $lsout2"
eval "cp $lsout1 $lsout2.flv"
fi

done
done