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Dell Latitude XT2 wireless driver and touchscreen settings keep reverting

rated 0 times [ 0] [ 0] / answers: 1 / hits: 3918 / 3 Years ago, wed, august 18, 2021, 9:18:00

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

then:

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?

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antoccasiona

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3 Years ago

answered 3 Years ago ttarum · Accepted Answer

According to Ubuntu bcm43xx documentation you should install firmware-b43-lpphy-installer package and use b43 module. So, first thing to do is to remove firmware-b43-installer and bcmwl-kernel-source packages. For this, give

sudo apt-get remove --purge bcmwl-kernel-source firmware-b43-installer

command. Then give

sudo apt-get install firmware-b43-lpphy-installer

command. After installing the pacakges, load b43 module by

sudo modprobe b43

command and you wireless card should work. If it does not work after rebooting computer, try to find out whether b43 module is blacklisted or not by looking files in /etc/modprobe.d/ folder. You can try

grep b43 /etc/modprobe.d/*

command. If the output is similar to

/etc/modprobe.d/blacklist.conf:blacklist b43

, open that file

sudo -H gedit /etc/modprobe.d/file_name

and remove blacklist b43 line.