Je viens vers vous car j'ai un problème avec mon PC, je n'ai accès à internet que via un câble ethernet.
Le symbole wifi n’apparaît plus sur la barre des taches, uniquement le réseau câblé s'affiche.
Je me suis baladé sur quelques forum, en général les experts demandent l'output de ses commandes:
$ sudo ifconfig
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eth0 Link encap:Ethernet HWaddr ac:9e:17:07:9c:b8
inet addr:192.168.1.21 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::f6a5:a194:79a2:fa3e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2067 errors:0 dropped:0 overruns:0 frame:0
TX packets:1475 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2182711 (2.1 MB) TX bytes:135460 (135.4 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:266 errors:0 dropped:0 overruns:0 frame:0
TX packets:266 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:21126 (21.1 KB) TX bytes:21126 (21.1 KB)
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eth0 no wireless extensions.
lo no wireless extensions.
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System: Host: florent-X550JK Kernel: 4.15.0-29-generic x86_64 (64 bit)
Desktop: Cinnamon 3.6.7 Distro: Linux Mint 18.3 Sylvia
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*-network UNCLAIMED
description: Network controller
product: BCM43142 802.11b/g/n
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:f7900000-f7907fff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0.1
bus info: pci@0000:04:00.1
logical name: eth0
version: 12
serial: ac:9e:17:07:9c:b8
size: 100Mbit/s
capacity: 1Gbit/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 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8411-2_0.0.1 07/08/13 ip=192.168.1.21 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:19 ioport:d000(size=256) memory:f7814000-f7814fff memory:f7810000-f7813fff
$ rfkill list
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0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
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Network: Card-1: Broadcom BCM43142 802.11b/g/n
IF: N/A state: N/A mac: N/A
Card-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
driver: r8169
IF: eth0 state: up speed: 100 Mbps duplex: full
mac: ac:9e:17:07:9c:b8