Archives For Ubuntu 12.10

The Choqok micro-blogging client has updated to version 1.4 which brings back the Twitter support. support has been removed from StatusNet plugin.

choqok 1.4

The developer announced in the official website:

Sometimes ago we had two bad news, service switched to software and dropped it’s API, so Choqok is no longer support service, but it still supports StatusNet websites, because StatusNet is not died. About support, right now there’s no one working on support as I know, so unfortunately there’s no promise on supporting it again.
And in Twitter land, they turned off support for API v1.0 which Choqok was using, and so with this update Twitter support is back to Choqok.

other changes:

  • Support for Twitter API v1.1 (Thanks to Daniel Kreuter for his effort on it)
  • “mark timeline as read” menu item added to tabs context menu (Lim Yuen Hoe)
  • Show “in reply to” in twitter search timelines (Lim Yuen Hoe)
  • support removed from StatusNet plugin, we still support StatusNet
  • And some other minor fixes

Install Choqok 1.4 in Ubuntu:

Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, run below commands to install the client in Ubuntu 13.10, Ubuntu 13.04, Ubuntu 12.10, Ubuntu 12.04 and their derivatives.

sudo add-apt-repository ppa:adilson/experimental

sudo apt-get update

sudo apt-get install choqok

This tutorial shows how to install Light Table IDE in Ubuntu 13.10, Ubuntu 13.04,12.10, 12.04 and manually create launcher for Unity Desktop.

As you may know, Light Table is a new interactive IDE that lets you modify running programs and embed anything from websites to games. It provides the real time feedback we need to not only answer questions about our code, but to understand how our programs really work.

LightTable IDE Ubuntu

Install Light Table IDE:

1.) Download Light Table from its homepage

2.) For global use, extract the download package and put the result folder to /opt/.

3.) You need to open Nautilus file browser as root to copy and paste Light Table Folder to /opt/. To do so, press Alt+F2 on your keyboard and type to run gksudo nautilus

open nautilus as root

Once done, you can open the IDE via command terminal:


NOTE: If you have problem launching it in Ubuntu 13.04 Raring Ringtail, run below command to fix:

  • for 32-bit:
    sudo ln -sf /lib/i386-linux-gnu/ /lib/i386-linux-gnu/
  • for 64-bit:
    sudo ln -sf /lib/x86_64-linux-gnu/ /lib/x86_64-linux-gnu/

Create Launcher for Light Table

1.) Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, run below commands to install required package:

sudo apt-get install gnome-panel --no-install-recommends

2.) Bring up the ‘Create Launcher’ dialog via below command:

sudo gnome-desktop-item-edit /usr/share/applications/ --create-new

Type in:

Name: Light Table
command: /opt/LightTable/LightTable
choose icon from /opt/LightTable/core/img/lticon.png

Light Table in Ubuntu unity

DrJava LogoAs you may know, DrJava is a lightweight programming environment for Java designed to foster test-driven software development. It includes an intelligent program editor, an interactions pane for evaluating program text, a source level debugger, and a unit testing tool.

This tutorial shows you how to install DrJava via getdeb repository in Ubuntu 13.04, Ubuntu 12.04, Ubuntu 12.10, Ubuntu 10.04 and their derivatives such as Linux Mint, Elementary, etc.

To get started, download and install the deb from the below link which will add the GetDeb repository to your system:

Download getdeb package

For Linux Mint, you can directly enable getdeb repository from Software Sources.

To install DrJava, click Reload button and search and install drjava package in Synaptic Package Manager. Or, run below command in terminal (Ctrl+Alt+T):

sudo apt-get update; sudo apt-get install drjava

DrJava Ubuntu

Update-20170107: The tutorial should also works on current Ubuntu releases, including Ubuntu 16.04, Ubuntu 16.10, Ubuntu 14.04 and their derivatives. To uninstall, simply run commands:

sudo apt-get remove drjava && sudo apt-get autoremove

And the getdeb repository can be removed by going to System Settings -> Software & Updates -> Other Software tab.

linux kernel logoLinus Torvalds has announced the Linux Kernel 3.11. Here are the new features and how to install / upgrade new kernel in Ubuntu 13.04, Ubuntu 12.10, Ubuntu 12.04 and Linux Mint.

Linus Torvalds wrote on the mailing list:

As some people noticed, I got distracted (“Ooh, look, a squirrel..”)
and never wrote an announcement for -rc7. My bad. But it wasn’t
actually all that interesting a release apart from the date, and it
had a silly compile error in ohci-pci if you hadn’t enabled
CONFIG_PM_RUNTIME, so we’ll just forget -rc7 ever happened, ok?
Instead, go and get the real 3.11 release, which is out there, all
shiny and ready to be compiled and loved.

Since rc7 (ok, I lied, it happened) there’s been just small fixes.
Most of them came in from the networking tree, but there’s some all
over: some random filesystem fixes, a couple of sound fixes, a
/proc/timer_list fix, things like that. Nothing really stands out
(unless you happened to use the new soft-dirty code, that had a buglet
that could really hurt), but let’s hope we don’t have some silly
configuration that doesn’t even compile this time around.

Shortlog appended.


The Linux Kernel 3.11 Features:


  • The DRM driver changes dominate the Linux 3.11 kernel! The big feature is Radeon dynamic power management support has finally come to AMD’s open-source driver along with early support for the Radeon HD 8000 “Sea Islands” GPUs. Phoronix tests have shown Radeon DPM is successful at improving power use and lowering temperatures while delivering great performance.
  • There’s a new DRM display driver for the Renesas R-Car SoC.
  • Intel Haswell improvements and Valley View / Bay Trail support is now ready for Linux desktop usage.
  • H.264 / MPEG-2 video decoding for Nouveau with select NVIDIA GPUs bearing the VP2 engine as part of the PureVideo HD support. This is exposed in Gallium3D via the VDPAU state tracker. There’s also early GK110 GPU support. The NVIDIA GK110 is the firm’s latest high-end Kepler GPU.

Disk / File-System:

  • LZ4 compression support.
  • Zswap was merged for compressed swap caching.
  • Various XFS file-system improvements.
  • Performance tuning for Btrfs.
  • F2FS file-system updates.
  • EXT4 file-system updates.
  • The Lustre file-system client was merged for the first time.


  • AVX2 Crypto optimizations.
  • PowerPC improvements from IBM.
  • Continued ARM improvements.
  • Xen and KVM virtualization now work for 64-bit ARM.

General Hardware & Miscellaneous Improvements:

  • Input device improvements.
  • Lots of audio / sound improvements.
  • With Linux 3.11, Wine can now handle Windows RT applications.

Download & Install Linux Kernel 3.11:

The Kernel PPA has updated DEB packages for Ubuntu and its derivatives. Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, run below commands to download the DEBs.

for 32-bit system:




for 64-bit system:




For both 32-bit & 64-bit, run below command to install them:

sudo dpkg -i linux-headers-3.11.0*.deb linux-image-3.11.0*.deb

Once installed, restart your computer!

If you have problem with this kernel, run below command to remove it:

sudo apt-get purge linux-image-3.11.0*

Read More:

Linux Kernel 3.11 announcement

Kernel 3.11 on kernel ppa mainline

Terra is a drop-down terminal emulator based on GTK+3.0. It has a tranparent background and supports multiple terminals with splitting screen horizontally or vertically.

It’s a good alternative to Yakuake terminal. Here are the screenshots:

terra terminal in gnome

terra terminal in xfce

terra terminal in unity

Install Terra in Ubuntu & its derivatives

For Ubuntu 13.04 Raring, Ubuntu 12.04 Precise, Ubuntu 12.10 Quantal, Linux Mint and Elementary OS. Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, run below commands one by one to install it:

sudo add-apt-repository ppa:ozcanesen/terra-terminal

sudo apt-get update

sudo apt-get install terra

Download and install the DEB from this page if you don’t want to add the ppa.