I have a Acer V5 122P, only WIFI, without Ethernet port and I can't connect to WiFi,
I have this information:
$ ifconfig
lo Link encap:Bucle local
Direc. inet:127.0.0.1 Másc:255.0.0.0
Dirección inet6: ::1/128 Alcance:Anfitrión
ACTIVO BUCLE FUNCIONANDO MTU:65536 Métrica:1
Paquetes RX:289 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:289 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:0
Bytes RX:21633 (21.6 KB) TX bytes:21633 (21.6 KB)
$ lspci | grep Network
01:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
$ lspci -vvnn | grep -A 9 Network
01:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Foxconn International, Inc. Device [105b:e078]
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 32
Region 0: Memory at f0800000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
Kernel driver in use: bcma-pci-bridge
I found these broadcom drivers on internet:
https://launchpad.net/ubuntu/+source/bcmwl
but I don't know how install them, I only know basic commands.
Information for chili555: http://paste.ubuntu.com/10416148/
bcmwl-kernel-source
package in Ubuntu 14.04 is for the 3.13 kernel. You might want to go back to kernel 3.13 or install thebcmwl-kernel-source
package for 14.10. – David Foerster Feb 25 '15 at 22:25