Your other (now solved) issue with wireless -
Based on info on this page :
http://wireless.kernel.org/en/users/Drivers/b43
..the device in question (BCM4312) works with both the proprietary driver you installed (wl) and the native one (b43). However, it is recommended to use the native one (b43) wherever possible as it 'usually' delivers better performance.
It needs a proprietary firmware to work and that's the reason why it can't work unless you manually install it. Fortunately, installing it is as easy as installing the "linux-firmware-nonfree" package :
Code:
sudo apt-get install linux-firmware-nonfree
Or, if the system has no internet connection, download it manually from
here > copy to the Ubuntu system > double-click to install.
But, as you may also agree, "don't fix it if it ain't broken !", lol !
If you wish or need to try the b43 driver for the device (in case the wl driver performs poorly), you will need to purge the proprietary driver -
Code:
sudo apt-get purge bcmwl-kernel-source broadcom-sta-common broadcom-sta-source
..before or after installing the linux-firmware-nonfree package.
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