Tag: ubuntu

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Working hard publishing papers and learning PyGTK

For the last few weeks I’ve been working hard to finish up my research project, most of it concerning about on mobile phone application usability and context-aware applications. This leaves me with less  time to devote for this blog and I started to realise that I might have a ‘burn-out’ issue at the same time.

I’m still using Ubuntu in my daily work if you are curious (Ubuntu Netbook Remix 9.04 for netbook) and Ubuntu Jaunty Jackalope for my Intel Core 2 Duo Desktop PC. Besides writing those research papers, I’ve use what left of my time to learn PyGTK to enable me to code RAD app for GNU/Linux desktop environment.

I found out the references around the internet regarding PyGTK is very helpful to aid me in understanding the GTK+ bindings in python, which is not much different from its C counterpart.

Now that I’ve some time to spare until Hari Raya, I’ll try to use that time wisely to fill up this blog with a couple more of fresh new posts. So, keep reading!

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How to disable touchpad in Ubuntu Netbook Remix

Here’s how to temporarily disable the touchpad control on Ubuntu Netbook Remix for those who were always accidently ‘clicked’ or ‘touched’ the touchpad while typing long sentences.

Disabling Touchpad

  • Go to the Ubuntu Netbook Remix main screen
  • Select ‘Preference’, then ‘Mouse’
How to disable touchpad

Untick the touchpad checkbox. The touchpad would be disabled until you you change the option back.

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How to make my Ubuntu detect more than 4GB memory

There were a couple of people that I met recently complained to me that their Ubuntu only detects 3 gigs of RAM after they upgraded their machine to 4 GB RAM.

Actually the problem does not lie with Ubuntu or any operating system in particular, rather the problem is related to 32bit operating system which only can address maximum of 232 bytes of memory.

Some might argue that 32-bit should be enough to address 4GB RAM, but in reality some of those memory location are reserved for computer and application operation that only a fraction of it are addressable when you installed 4GB RAM on a 32bit operating system. Thus you would see that your computer would only have around 3.5 GB only.

The solution?

There are two solutions to remedy this problem :
i) Install a 64-bit (Ubuntu) operating system
ii) Compile/Install kernel with PAE features enabled

The (i) solution is obvious, just install a 64bit edition of Ubuntu to your computer, and your problem will be automatically solved! The downside is, you probably does not want to use a 64bit edition of Ubuntu yet for some obscure reason (the evil binary only drivers and blobs)

The (ii) solution requires you to install a kernel with Physical Address Extension (PAE) support enabled.

For you information, Ubuntu comes with pre-compiled linux kernel that has PAE enabled. What you need to do is to apt-get these 3 packages “linux-headers-server, linux-image-server and linux-server” and reboot your computer. This will enable you operating system to recognize the extra RAM installed inside your computer.

p/s : The best solution is to get a system that does not depend on binary blogs (hardware drivers, etc) and move to 64-bit operating system in order to enjoy the full potential of your computer.

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My Experience with Asus EeePC 1000h netbook

Last week I had the chance to use the Asus EeePC 1000h netbook (photo below) while carrying out official duties in my workplace.

Asus Eeepc 1000h netbook Screenshot - mypapit

The Asus EeePC 1000h dimension is roughly the size of an A4 paper. If you happened to have an A4 paper in front of you, then you’ll get the idea of how big Asus EeePC 1000h is. Its 10 inch widescreen monitor offers a compact yet comfortable view for portable operation.

EeePC 1000h keyboard screenshot

The keys on the keyboard is roughly 92% the size of an average laptop keyboard. This is larger than its predecessor Asus Eeepc 1000 and 901. Most importantly, the 1000h also comes with 160GB hard disk (with a modest 5,400 rpm) as opposed to 4-8GB of Solid State Drive (SSD) like its predecessor, allowing you to store more files on the netbook.

EeePC 1000h battery life
One of the thing that I admire most about Asus EeePC is its battery life which was advertised as it could last up to 7 hours. My personal test reveals that EeePC 1000h could last about 5 hours when running with active WiFi connection, which I consider as more than Continue reading “My Experience with Asus EeePC 1000h netbook”

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How to Use Launchpad account as OpenID URL

OpenID is a standard that allows you to log into many websites or services using a single identity as oppose to memorize several different username and password on different websites.

Websites that provide OpenID identity are called OpenID providers. There are many OpenID providers, and one of it is Launchpad. Launchpad users can use their Launchpad account URL as OpenID URL in order to access OpenID-supported websites or services.

For example :
https://launchpad.net/~mypapit

The general form of Launchpad OpenID URL is: https://launchpad.net/~your_user_name.

Where I can use OpenID for authentication?

You can use your Launchpad URL for authentication at websites or services that feature OpenID logo. Examples of such services is Blogger comment form, Sourceforge and Facebook.

OpenID Logo

How to use Launchpad account as OpenID provider?
On website that supports OpenID, enter your Launchpad account url : https://launchpad.net/~your_user_name, replace your_user_name to your own username. Then, you will be directed to your launchpad account, enter your password and you will be automatically authenticated for the current service.

Screenshot example :

Using Launchpad Account as OpenID

The favorable side-effect of using your Launchpad account as OpenID is that you can indirectly promote (and probably brag) about your contribution (aka karma) towards Ubuntu.