This question already has an answer here:
- How to Install a Broadcom Wireless Driver 40 answers
I have installed ubuntu 12.10 lately and I tried to install the wireless Driver by seeing various sites and threads. I have installed a deb from here : How do I install BCM43142 wireless drivers for Dell Vostro 3460/3560?
But it doesn't have any effect on my system. I additional driver section I get Using Broadcom 802.11 Linux STA wireless drivers source frm wireless-bcm43142-oneiric- dkms(opensource)
But It also shows : This device is using an alternate driver.
I have these results:
sudo lshw -class network *-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:d3:86 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
And lspci -vvv
08:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01) Subsystem: Dell Wireless 1704 802.11n + BT 4.0 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 11 Region 0: Memory at c1500000 (64-bit, non-prefetchable) [size=32K] Capabilities: <access denied>