Matlab: plot, imagesc, graphical options don't work.

Graphical options (properties) such as fontsize, font weight and so are not considered, only default graphical properties are displayed in linux ubuntu 10.04+

How to solve this problem?

The solution I propposed here worked for me. 

Since 11.11  release (with update to 10.04 and ..) Ubuntu switch to OpenJDK replacing Oracle (Sun) JDK,JRE.

Since this changing graphical properties in Matlab don't work correctly (in my case). To solve this problem I replace my JDK, JRE from OpenJDK to Oracle JDK using the following 

(source http://www.ubuntugeek.com/)

Preparing your system

First you need to remove openjdk for this run the following command from your terminal

sudo apt-get purge openjdk*

If you installed java 7 from any other PPA and you are having problem with java then you have to do following steps before installing the PPA menctioned here

sudo rm /var/lib/dpkg/info/oracle-java7-installer*
sudo apt-get purge oracle-java7-installer*
sudo rm /etc/apt/sources.list.d/*java*
sudo apt-get update

Install oracle java 7 in ubuntu 12.04

Open the terminal and run the following commands

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer

You can check the java version by searching java in dashboard