No meu notebook anterior eu usava a Broadcom sem problemas e dificuldades,
mas antes tive que instalar esses pacotes:

# apt-get install b43-fwcutter linux-firmware-nonfree

Verifique se você tem eles instalado.

2016-07-04 2:15 GMT-04:00 Thiago Canuto <thiagocanuto...@gmail.com>:

> Olá.
>
> Também estou com este problema atualmente. Estou usando um notebook STi
> IS-1451, e já tem mais de 1 semana que tento varias alternativas para
> solucionar, mas nada de resolver este problema. Pesquisei em fóruns, sites,
> etc. e em ultimo caso decidi "incomodar" :-[ a comunidade e pedir ajuda
> aqui.
>
> Fiz todos os passos iniciais depois de instalar como:
>
> *Atualizar a source.list com contrib non-free;*
>
> # Debian 8 "Jessie"
> deb http://httpredir.debian.org/debian/ jessie main contrib non-free
>
> Instalei o firmware b43 através do Synaptic;
>
>
> * No link: https://wiki.debian.org/wl <https://wiki.debian.org/wl> , fiz
> os procedimentos:*
>
> Installation
>
>     Add a "non-free" component to /etc/apt/sources.list for your Debian
> version, for example:
>
>     *# Debian 8 "Jessie"*
> *    deb http://httpredir.debian.org/debian/
> <http://httpredir.debian.org/debian/> jessie main contrib non-free*
>
>     Update the list of available packages. Install the relevant/latest
> linux-image, linux-headers and broadcom-sta-dkms packages:
>
>     *# apt-get update*
> *    # apt-get install linux-image-$(uname -r|sed 's,[^-]*-[^-]*-,,')
> linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,') broadcom-sta-dkms*
>
>     This will also install the recommended wireless-tools package. DKMS
> will build the wl module for your system.
>
>     Unload conflicting modules:
>
>     *# modprobe -r b44 b43 b43legacy ssb brcmsmac bcma*
>
>     Load the wl module:
>
>     *# modprobe wl*
>
>
> *Digitei o comando:*
>
> *# iwconfig wlan0*
> *wlan0     No such device*
>
> Instalei o *laptop-mode-tools* através do Synaptic.
>
> Alterei o *WIRELESS_BATT_POWER_SAVING=0* dentro de
> /etc/laptop-mode/conf.d/wireless-power.conf e reinicie o notebook
>
> Depois disso não consegui mais visualizar o *wlan0*. Antes de fazer os
> comandos acima do site https://wiki.debian.org/wl eu conseguia
> visualizar, porem sem ter acesso ao Wifi.
>
> Depois pesquisando em alguns fóruns descobri alguns comandos que me mostra
> as informações sobre o wifi, que pode ser útil. Me apareceu isto:
>
> *lspci -k |grep -A2 -i network*
> 03:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN
> (rev 01)
>     Subsystem: Quanta Microsystems, Inc Device 1102
> 05:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8055 PCI-E
> Gigabit Ethernet Controller (rev 11)
>
> *Drivers:*
>
>
> *$ ls -l /lib/modules/`uname -r`/kernel/drivers/net/wireless/*
> *total 648*
> -rw-r--r--  1 root root 37160 Abr  8 19:21 adm8211.ko
> -rw-r--r--  1 root root  7284 Abr  8 19:21 airo_cs.ko
> -rw-r--r--  1 root root 96676 Abr  8 19:21 airo.ko
> -rw-r--r--  1 root root 53388 Abr  8 19:21 at76c50x-usb.ko
> drwxr-xr-x  9 root root  4096 Jun 19 19:03 ath
> -rw-r--r--  1 root root 10688 Abr  8 19:21 atmel_cs.ko
> -rw-r--r--  1 root root 48124 Abr  8 19:21 atmel.ko
> -rw-r--r--  1 root root  4196 Abr  8 19:21 atmel_pci.ko
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 b43
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 b43legacy
> drwxr-xr-x  5 root root  4096 Jun 19 19:03 brcm80211
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 hostap
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 ipw2x00
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 iwlegacy
> drwxr-xr-x  4 root root  4096 Jun 19 19:03 iwlwifi
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 libertas
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 libertas_tf
> -rw-r--r--  1 root root 49656 Abr  8 19:21 mac80211_hwsim.ko
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 mwifiex
> -rw-r--r--  1 root root 64476 Abr  8 19:21 mwl8k.ko
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 orinoco
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 p54
> -rw-r--r--  1 root root 63056 Abr  8 19:21 ray_cs.ko
> -rw-r--r--  1 root root 62060 Abr  8 19:21 rndis_wlan.ko
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 rsi
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 rt2x00
> drwxr-xr-x  4 root root  4096 Jun 19 19:03 rtl818x
> drwxr-xr-x 12 root root  4096 Jun 19 19:03 rtlwifi
> -rw-r--r--  1 root root 29420 Abr  8 19:21 wl3501_cs.ko
> -rw-r--r--  1 root root 29176 Abr  8 19:21 zd1201.ko
> drwxr-xr-x  2 root root  4096 Jun 19 19:03 zd1211rw
>
>
> *# lspci -nn -d 14e4:*
> 03:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g
> WLAN [14e4:4311] (rev 01)
>
> *Driver carregado:*
>
> *~$ lspci -k |grep -A2 -i network*
> 03:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN
> (rev 01)
>     Subsystem: Quanta Microsystems, Inc Device 1102
> 05:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8055 PCI-E
> Gigabit Ethernet Controller (rev 11)
>
>
> *$ lspci*
> 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and
> 945GT Express Memory Controller Hub (rev 03)
> 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
> 943/940GML Express Integrated Graphics Controller (rev 03)
> 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME,
> 943/940GML Express Integrated Graphics Controller (rev 03)
> 00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition
> Audio Controller (rev 02)
> 00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1
> (rev 02)
> 00:1c.1 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2
> (rev 02)
> 00:1c.2 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 3
> (rev 02)
> 00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI
> Controller #1 (rev 02)
> 00:1d.1 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI
> Controller #2 (rev 02)
> 00:1d.2 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI
> Controller #3 (rev 02)
> 00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI
> Controller #4 (rev 02)
> 00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI
> Controller (rev 02)
> 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
> 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface
> Bridge (rev 02)
> 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE
> Controller (rev 02)
> 00:1f.2 SATA controller: Intel Corporation 82801GBM/GHM (ICH7-M Family)
> SATA Controller [AHCI mode] (rev 02)
> 00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller (rev 02)
> 03:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN
> (rev 01)
> 05:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8055 PCI-E
> Gigabit Ethernet Controller (rev 11)
> 07:01.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller
> 07:01.1 FireWire (IEEE 1394): Texas Instruments PCIxx12 OHCI Compliant
> IEEE 1394 Host Controller
> 07:01.2 Mass storage controller: Texas Instruments 5-in-1 Multimedia Card
> Reader (SD/MMC/MS/MS PRO/xD)
> 07:01.3 SD Host controller: Texas Instruments PCIxx12 SDA Standard
> Compliant SD Host Controller
>
>
>
>
> *# ifconfig -a *eth0      Link encap:Ethernet  Endereço de HW
> 00:1b:24:47:96:a2
>           inet end.: 192.168.0.20  Bcast:192.168.0.255  Masc:255.255.255.0
>           endereço inet6: fe80::21b:24ff:fe47:96a2/64 Escopo:Link
>           UP BROADCASTRUNNING MULTICAST  MTU:1500  Métrica:1
>           RX packets:78036 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:62759 errors:0 dropped:0 overruns:0 carrier:0
>           colisões:0 txqueuelen:1000
>           RX bytes:71494430 (68.1 MiB)  TX bytes:7452824 (7.1 MiB)
>           IRQ:18
>
> lo        Link encap:Loopback Local
>           inet end.: 127.0.0.1  Masc:255.0.0.0
>           endereço inet6: ::1/128 Escopo:Máquina
>           UP LOOPBACKRUNNING  MTU:65536  Métrica:1
>           RX packets:34 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:34 errors:0 dropped:0 overruns:0 carrier:0
>           colisões:0 txqueuelen:0
>           RX bytes:3547 (3.4 KiB)  TX bytes:3547 (3.4 KiB)
>
> *(wlan0) sumiu!*
>
> digitei o comando *# rfkill list* mas não aparece nada
>
>

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