Fan always on Ubuntu 13.10

That's annoying...I know.
After a fresh install of Ubuntu on their laptop some people are having overheating issues, fan always on and consequently short battery life.

There's an extremely easy solution for that.
Install TLP, a tool that will take care of your laptop's life.

Open the terminal (Ctrl + Alt + T) and type the following commands:

sudo add-apt-repository ppa:linrunner/tlp
sudo apt-get update
sudo apt-get install tlp tlp-rdw
sudo tlp start


Source: http://itsfoss.com/things-to-do-after-installing-ubuntu-13-10/

Sound widget disappeared on Ubuntu 13.10...


...plus you're not able to change the volume level.

First of all, make sure "alsamixer" is installed and working properly

Open the terminal (Ctrl + Alt + T) and type
alsamixer

If you can see the mixer and change the volume from there...awesome! You'll only have to reinstall the sound indicator.

To do this...exit alsamixer (press ESC) and type on the terminal
sudo apt-get -f install --reinstall indicator-sound indicator-sound-gtk2


After reboot you should see the widg
et working again.

In case your "alsamixer" is not working properly but it's installed...try to force the reload by typing
sudo alsa force-reload


If instead, it's not installed anymore...just re-install it
sudo apt-get install alsa

How to correctly install Skype on Ubuntu 13.10


People trying to install Skype on Ubuntu 13.10 is experiencing several issues: application crashes, audio is not clean or doesn't work at all, etc...

The problem is common...and probably it's due to the way Skype is installed on your system. What everybody (most of the users) does is to download the .deb package from the Skype website (http://www.skype.com/it/download-skype/skype-for-linux/)...WRONG!

There's a better and cleaner way to install Skype that doesn't cause all those issues.
You just have to follow these steps:

1. Open the Terminal (Ctrl + Alt + T)

2. Paste the following
sudo add-apt-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"


3. Update the repository
sudo apt-get update

4. Install Skype
sudo apt-get install skype && sudo apt-get -f install


You have successfully installed Skype on your Ubuntu 13.10


Source: http://www.linuxsystemhacks.com/2013/06/how-to-install-skype-42-in-ubuntu-1310.html#.UrVxAZDuLC1