[ Thanks to tjavailable for this link.
]
“Most modern laptops are equipped with powerful graphics and
video cards to help increase gaming and video performance. However
these cards drain a lot of your battery charge. In many cases the
extra graphic support is not needed for basic computing
applications yet the graphic unit run in the background gulping a
considerable amount of battery charge.“Every user of such laptops might have wished they had an option
to switch off the graphic support unit when not needed and thereby
have more battery life to perform basic activities such as word
processing, running their email client and so on. These activities
take a lot less hardisk usage and thus lesser charge
consumption.“However users of Ubuntu installed laptops can avail a solution
for this problem. Now Ubuntu has software that allows you to
actually shut down your extra graphics card when you don’t need it.
Yes you heard it right. What we are talking about here is Bumblebee
Software for Ubuntu.”