I am new to Ubuntu and using a Dell Latitude XT2. When Installed Ubuntu there was a problem with my wireless drivers. After looking around a bit I managed to fix it with the following commands:
sudo apt-get purge bcmwl-kernel-source && sudo apt-get install firmware-b43-installer
sudo apt-get install bcmwl-kernel-source
with a wired internet connection.
My touchscreen was also causing me problems so I tried to turn it off with:
xinput set-prop 'N-Trig MultiTouch' 'Device Enabled' 0
which again works.
My problem is everything reverts when I turn my laptop off so I am currently having to do this every time I turn it on. Is there anyway to fix this?