PVC is a Dell 1545. dual booting Windows 7 & Ubuntu. I upgraded from 14.04 to 14.10 yesterday morning, all worked ok including wireless connection.
Then a few hours later upgraded from 14.10 to 15.04. Since that point I have no wireless connections listed at all.
Wireless works fine in Windows by the way.
In Software & Updates > Additional Drivers tab, I have Broadcom Corp BCM4312 802.11b/g LP-PHY (Wireless 1397 WLAN Mini-Card) listed, under which the 'Using Broadcom …..' option is listed and selected.
I have tried multiple 'solutions' from various support pages all day without any success. Several mention running nm-tool at the command prompt – this tool is not present on my system ! (command not found).
Assistance (in plain English if possible) would be much appreciated ! A lot of what I have read might as well have been in a foreign language.
Nick
Best Answer
Please obtain a temporary internet connection by ethernet, tethered or any other means. Next, open a terminal and do:
Reboot and your wireless should be working.