• Ubuntu: unable to play DVD

    If your Ubuntu installation is not able to play DVDs, here you can see all the steps to enable this feature:

    from a command line, make sure you install the main libraries:

    sudo apt-get purge libdvdread4 libdvdcss2 libdvdnav4 ubuntu-restricted-extras
    sudo apt-get install libdvdnav4 libdvdread4 ubuntu-restricted-extras

    Finally, in order to be able to read crypted content (that is most of the DVD you would find in stores), you need to install the css libraries by running (still from the terminal):

    sudo /usr/share/doc/libdvdread4/install-css.sh

    And now… enjoy your DVDs!


  • Support: PRIME: is it supported? no

    What happens if you see the error message “PRIME: is it supported? no” in the terminal when launching nvidia-settings application to configure your NVIDIA card on your Optimus system?

    Most probably there has been some issues when updating the driver or wrong configuration. The way to fix this is quite simple (tested on Ubuntu and Lubuntu 14.04):

    First of all let’s remove NVIDIA drivers:
    sudo apt-get purge bumblebee*
    sudo apt-get purge nvidia-*

    Then reboot the computer and install the latest version (in my case was nvidia-331-updates):

    sudo apt-get install nvidia-331-updates

    this will install nvidia-settings and nvidia-prime and reboot one last time – your configuration is now correct!

  • Support: fix missing network icon in Lubuntu 14.04 (nm-applet)

    After the update to Lubuntu 14.04, you may notice that the network icon is not present anymore thus making difficult to manage your connections (through the GUI)…

    Until the bug is fixed, you can use the following steps in order to make it working again:

    1. Open a console and type lxsession-default-apps

    2. go to the Autostart tab

    3. Tick and Un-tick “Network” (please note that if your Lubuntu is not in English, this field will appear as “Network” translated in the current language

    4. You can then close this window and in the terminal type: nano ~/.config/autostart/nm-applet.desktop

    5. search the line NoShowIn=KDE;LXDE; and change it to: NoShowIn=KDE;

    6. Save the file and at the next reboot the icon will be there again… Easy!