Installed 12.04 on dell inspiron 5420. wired connection is working however wifi and bluetooth connection does not work. In fact I can't see wlan0. Can I know the correct driver to install?
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You could start by typing 'lspci' in a terminal to know which Broadcom card you have. – To Do Sep 09 '12 at 08:59
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1Take a look at this: http://askubuntu.com/questions/127633/how-do-i-get-a-broadcom-bcm4313-wireless-card-working – To Do Sep 09 '12 at 09:01
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result of lspci 02:00.0 Network controller: Broadcom Corporation Device 4365 (rev 01) – ADARSH MJ Sep 09 '12 at 15:43
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is it solved? did you look at the link? – green Sep 09 '12 at 15:54
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i tried but the acces was denied.. – ADARSH MJ Sep 09 '12 at 15:55
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Did you check the hardware switch? – Mitch Sep 17 '12 at 11:47
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it's the driver issue, the broadcom didn't release the driver source. some guy extracted a amd64 binary version from Dell's pre-loaded Ubuntu. follow this link to see more. https://bbs.archlinux.org/viewtopic.php?id=145884
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ubuntu-1204-wifi-not-working-at-laptop-or-notebook-unblock-it
Ubuntu 12.04. WiFi not working
Check if the wifi card is blocked (Terminal)
rfkill list wlan (for wifi)
OR
rfkill list all (for wifi and bluetooth)
UNBLOCK:
rfkill unblock wlan (for wifi)
OR
rfkill unblock all (for wifi and bluetooth)
Restart the network:
sudo service network-manager restart
ptheo
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