Archive for: ‘August 2012’

Apache Karaf 2.2.9

August 18, 2012 Posted by jbonofre

The Apache Karaf team is proud to announce a new version on the Karaf 2.2.x branch.

The 2.2.9 version is a major bug fixes release.

We fixed 52 issues in this release, and we are inline with our release cycle (around every 2 months).

Especially, it includes:

  • Work with the latest JRE/JDK 1.6.0 and 1.7.0 updates: some changes in the Java Virtual Machine resulted to issues in previous Karaf releases. It’s now fixed in Karaf 2.2.9, allowing Karaf to work with Java 1.6.0_33 or 34 for instance, but fixed in Karaf itself and an upgrade to Aries Proxy 0.3.1.
  • New OSGi frameworks: this release upgrade to the latest minor versions of the OSGi frameworks, especially Apache Felix Framework 3.2.2.
  • Dependencies minor version updates: in order to fix several minor issues, some dependencies have been upgraded (javax.mail 1.4.5, ServiceMix bundles, etc).
  • Stopping the shell console doesn’t stop the OSGi framework: previously, when you stopped the Karaf shell console bundle, it also stopped the OSGi framework. No, the bundles are no more coupled, allowing you to stop the shell console but let your application bundles running in the OSGi framework.
  • MBeans and shell commands are consistent: some options present in the shell commands (for instance, -c and -r options in features:install command) were not present for the same action using MBeans. Now, you can find the same options in both commands and MBeans.
  • Features installation optimisation: Karaf now avoid to resolve the same bundles many times when installing features in cascade. It improves the features installation time.

You can have more information and download this release here:

Now, we are working on Karaf 2.3.0 and 3.0.0-RC1. Karaf 2.3.0 should arrive very soon.

Dell Vostro with Ubuntu: use the AMD Catalyst drivers

August 18, 2012 Posted by jbonofre

I have a Dell Vostro 3550 with Ubuntu 12.04 since around one year now.

The laptop worked fine, it was pretty fast, building a lot of projects in the same time, etc.

I complained with:

  • the temperature was really hot (sensors said between 80°C and 95°C all of the time). Sometime, the temperature was critical and the system shutted down.
  • due to the previous point, the fan was very noisy
  • the battery autonomy was average

This laptop use dual graphic cards: Intel SGI graphic card (to reduce energy consumption), and AMD Radeon HD 6600M (for 3D enhanced graphics and HD videos).

When I got this laptop, I tried to install the fglrx open source drivers a couple of times. Without success: it seems that the Radeon card was not fully supported.

As the laptop ran really fine (unity was fast, vlc was able to read HD videos without problem, etc), I stayed with the Intel Xorg driver.

Yesterday evening, watching a movie, the laptop was so hot that I have to use a pillow to avoid to burn my legs 😉

So today, I decided to find a solution.

As the fglrx open source drivers didn’t work, I try to proprietary AMD Catalyst drivers.


The temperature stays around 70/80°C, so the fan are pretty quite, and the system is even faster than before.

More over, the admcccle (Catalyst Console) allows you to tweak the graphic card configuration. You can also choose and switch between the Intel SGI card or the RADEON one (it required a reboot).

To summarize, for all Dell Vostro users on Ubuntu (and more generally on Linux), install the ADM Catalyst graphics drivers 😉