Hi guys I just installed ubuntu 13.04 on my Dell inspiron 5520 laptop the WiFi worked fine when i booted from the live cd and installed it got the timezone and some updates too.
but after installation there is no trace of WiFi connectivity.
also the bluetooth settings seems to be just for show. It wont detect any other device and I cant find it on any other device
sudo lshw -c network and the output was
*-network description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:07:00.0 logical name: eth0 version: 05 serial: d4:be:d9:2d:d7:49 size: 10Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:43 ioport:2000(size=256) memory:c1404000-c1404fff memory:c1400000-c1403fff *-network UNCLAIMED description: Network controller product: BCM43142 802.11b/g/n vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:08:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:c1500000-c1507fff
also i ran
lspci | grep -i bcmand the output was
`08:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)`
rfkill list command gave this output
1: hci0: Bluetooth Soft blocked: no Hard blocked: no
iwconfig command says that there is no wireless extensions.
I have installed ubuntu 13.04 on an external USB hard drive.