Install Jdownloader in Ubuntu 10.10/10.04/9.10 using Ubuntu PPA

JDownloader is open source platform independent and written completely in Java. It simplifies downloading files from One-Click-Hosters like Rapidshare.com or Megaupload.com - not only for users with a premium account but also for users who don’t pay. It offers downloading in multiple paralell streams, captcha recognition, automatical file extraction and much more. Of course, JDownloader is absolutely free of charge. Additionally, many “link encryption” sites are supported - so you just paste the “encrypted” links and JD does the rest. JDownloader can import CCF, RSDF and the new DLC files.
Install Jdownloader in Ubuntu 10.10/10.04/9.10




Open the terminal and run the following command
sudo add-apt-repository ppa:jd-team/jdownloader
sudo apt-get update 
sudo apt-get install jdownloader

compiz-fusion-plugins-extra

This is the full list of compiz packages I have installed (Intrepid):

compiz
compiz-core
compiz-dev
compiz-fusion-plugins-extra
compiz-fusion-plugins-main
compiz-fusion-plugins-unsupported
compiz-gnome
compiz-gtk
compiz-plugins
compiz-wrapper
compizconfig-backend-gconf
compizconfig-settings-manager
emerald
gnome-compiz-manager
libcompizconfig0
libemeraldengine0
libgnome-compiz-manager0
python-compizconfig

Ubuntu Tips And Tricks : Compiz Fusion

Compiz Fusion is available as a separate Windows Manager, to allow advanced desktop effects such as the rotating cube desktop. Many Ubuntu users choose to run Compiz, which is quite fast in Ubuntu. 
Install:

sudo apt-get install compiz compizconfig-settings-manager compiz-fusion-plugins-main
compiz-fusion-plugins-extra emerald librsvg2-common
To change to Compiz as the Window Manager:
System -> Preferences -> CompizConfig Settings Manager
Note: You must logout and log back in for the change to take effect.

Fusion Icon

Fusion Icon is a tray icon that allows you to easily switch between window managers, window decorators, and gives you quick access to the Compiz Settings Manager. This allows quick toggling of 3-D desktop effects (that may not be compatible with some applications).

sudo apt-get install fusion-icon
Applications -> System Tools -> Compiz Fusion Icon
You can then easily access CompizConfig Settings Manager from the icon.

 

Rotate the Compiz Cube


Set the CompizConfig Settings Manager to enable the "Desktop Cube" and "Rotate Cube" and "Viewport Switcher" options. Click on the icon for each to customize settings. For example, to change the appearance of the cube, click on the Desktop Cube icon to access its settings. You can set the hotkey buttons for rotating the cube in the "Viewport Switcher" settings. Otherwise, hold down the Ctrl+Alt+Left mouse button and drag the mouse (or touchpad) the direction you want to rotate the cube.
Remember, the cube rotates between desktops. It's not a cube unless you have at least 4 desktops running. You will not get a cube if you are only using 2 desktops (you will get a "plate"). You can still rotate the sides of the plate, of course, but it will not be a cube. (Recent users from the Windows OS may have no experience with the concept of simultaneous desktops, but they are nice once you learn how to use them).
When running Compiz fusion as the Windows Manager, you must change the default number of desktops from within CompizConfig Settings Manger. To enable 4 desktops:
CompizConfig Settings Manager -> General -> General Options -> Desktop Size -> Horizontal Virtual Size -> 4
When you start an application, you can assign it to any one of the 4 desktops by right-clicking the upper left corner of the application window and choosing the "To Desktop..." option. Rotating the cube shows the different desktops. You can also go to a desktop using the taskbar icon which shows the 4 desktop.

Fix Low Screen Resolution At Start UP


Step 1: Hit the ALT+F2 key combination, paste the following command and check the "Run in terminal" option:

sudo apt-get install v86d

...a terminal window will appear. Enter your password when asked, hit the Enter key and wait for the package to be installed. The terminal window will automatically close!

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Step 2: Hit the ALT+F2 key combination, paste the following command and check the "Run in terminal" option:


gksu gedit /etc/default/grub

...enter your password when asked and hit the Enter key.

- Replace the following line (line number 9):

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

with this one:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset video=uvesafb:mode_option=1280x1024-24,mtrr=3,scroll=ywrap"


- Replace the following line (line number 18):

#GRUB_GFXMODE=640x480

with this one:

GRUB_GFXMODE=1280x1024

The file should look like this:
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Save the file and close it!


Step 3: Hit the ALT+F2 key combination, paste the following command and check the "Run in terminal" option:

gksu gedit /etc/initramfs-tools/modules
When the text window appears, add the following line at the end of the file:

uvesafb mode_option=1280x1024-24 mtrr=3 scroll=ywrap

It should look like this:
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Save the file and close it!

Step 4: Hit the ALT+F2 key combination, paste the following command and check the "Run in terminal" option:

echo FRAMEBUFFER=y | sudo tee /etc/initramfs-tools/conf.d/splash


...a terminal window will appear for a second or two. The terminal window will automatically close!
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Step 5: Hit the ALT+F2 key combination, paste the following command and check the "Run in terminal" option:


sudo update-grub2

...a terminal window will appear. Enter your password when asked, hit the Enter key and wait for the command to finish. The terminal window will automatically close!
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Step 6: Hit the ALT+F2 key combination, paste the following command and check the "Run in terminal" option:


sudo update-initramfs -u
...a terminal window will appear. Enter your password when asked, hit the Enter key and wait for the command to finish. The terminal window will automatically close!
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Step 7: Reboot your computer. When the system starts, you should see a better looking Ubuntu logo!
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Public Key Is Not Avaiable

When you getting this problems usually when you update:

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 54422A4B98AB5139
The solution is simple.Take the first key you have problem with, for example E635A714505A2DD1, take the last 8 symbols (in this case - 505A2DD1) and run the following in the terminal:

gpg --keyserver keyserver.ubuntu.com --recv 505A2DD1
gpg --export --armor 505A2DD1 | sudo apt-key add -
Then repeat this step with every problematic key.

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