Wifi ne fonctionne pas après la mise à jour de 16.04
J'ai un Asus 1015E-DS02
J'ai essayé les solutions ici en vain.
J'ai également essayé les solutions sur ici et ici même si mon wifi n'a pas fonctionné du tout depuis la mise à niveau.
Je voudrais également noter que je suis passé à 16.04 presque immédiatement après la mise à niveau de 12.04 à 14.04. Je suis presque sûr que le Wi-Fi a fonctionné à 14h04.
Est-il important de dire que "Ce périphérique utilise un pilote alterate ?
Voici les résultats de tout cela en un script .
########## wireless info START ##########
Report from: 24 Sep 2016 18:59 PDT -0700
Booted last: 24 Sep 2016 00:00 PDT -0700
Script from: 08 Jul 2016 02:16 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial
##### kernel ############################
Linux 3.2.0-98-generic #138-Ubuntu SMP Mon Jan 11 12:33:01 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
Subsystem: AzureWave BCM4313 802.11bgn Wireless Network Adapter [1a3b:2047]
Kernel modules: brcmsmac, bcma
03:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8162 Fast Ethernet [1969:1090] (rev 10)
Subsystem: ASUSTeK Computer Inc. AR8162 Fast Ethernet [1043:115d]
Kernel driver in use: alx
##### lsusb #############################
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 13d3:5188 IMC Networks
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: asus-wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
asus_nb_wmi 16990 0
asus_wmi 24392 1 asus_nb_wmi
wmi 19256 1 asus_wmi
sparse_keymap 13890 1 asus_wmi
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
eth1 Link encap:Ethernet HWaddr <MAC 'eth1' [IF1]>
inet addr:192.168.1.74 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::<IP6 'eth1' [IF1]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5727 errors:0 dropped:0 overruns:0 frame:0
TX packets:2826 errors:0 dropped:0 overruns:0 carrier:3
collisions:0 txqueuelen:1000
RX bytes:1179744 (1.1 MB) TX bytes:459222 (459.2 KB)
Interrupt:19
virbr0 Link encap:Ethernet HWaddr <MAC 'virbr0' [IF2]>
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:665 (665.0 B)
virbr0-nic Link encap:Ethernet HWaddr <MAC 'virbr0' [IF2]>
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
##### iwconfig ##########################
lo no wireless extensions.
virbr0 no wireless extensions.
eth1 no wireless extensions.
virbr0-nic no wireless extensions.
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.254 0.0.0.0 UG 100 0 0 eth1
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth1
192.168.1.0 0.0.0.0 255.255.255.0 U 100 0 0 eth1
##### resolv.conf #######################
nameserver 127.0.1.1
search attlocal.net
##### network managers ##################
Installed:
NetworkManager
Running:
root 10628 1 0 18:26 ? 00:00:01 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: eth1
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Qualcomm Atheros
GENERAL.PRODUCT: AR8162 Fast Ethernet
GENERAL.DRIVER: alx
GENERAL.DRIVER-VERSION:
GENERAL.FIRMWARE-VERSION: alx
GENERAL.HWADDR: <MAC 'eth1' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.3/0000:03:00.0/net/eth1
GENERAL.IP-IFACE: eth1
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: Wired connection 1
GENERAL.CON-UUID: d39a1836-67cf-41f3-b0e5-25a057eecef1
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/0
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: 100 Mb/s
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: on
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{15}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: d39a1836-67cf-41f3-b0e5-25a057eecef1 | Wired connection 1
IP4.ADDRESS[1]: 192.168.1.74/24
IP4.GATEWAY: 192.168.1.254
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 192.168.1.254
IP4.DOMAIN[1]: attlocal.net
DHCP4.OPTION[1]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[2]: requested_domain_search = 1
DHCP4.OPTION[3]: requested_Host_name = 1
DHCP4.OPTION[4]: requested_time_offset = 1
DHCP4.OPTION[5]: requested_domain_name = 1
DHCP4.OPTION[6]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[7]: requested_broadcast_address = 1
DHCP4.OPTION[8]: requested_wpad = 1
DHCP4.OPTION[9]: requested_netbios_scope = 1
DHCP4.OPTION[10]: next_server = 192.168.1.254
DHCP4.OPTION[11]: expiry = 1474853452
DHCP4.OPTION[12]: requested_interface_mtu = 1
DHCP4.OPTION[13]: requested_subnet_mask = 1
DHCP4.OPTION[14]: routers = 192.168.1.254
DHCP4.OPTION[15]: dhcp_message_type = 5
DHCP4.OPTION[16]: ip_address = 192.168.1.74
DHCP4.OPTION[17]: requested_static_routes = 1
DHCP4.OPTION[18]: domain_name = attlocal.net
DHCP4.OPTION[19]: dhcp_renewal_time = 43200
DHCP4.OPTION[20]: requested_domain_name_servers = 1
DHCP4.OPTION[21]: broadcast_address = 192.168.1.255
DHCP4.OPTION[22]: domain_name_servers = 192.168.1.254
DHCP4.OPTION[23]: requested_ntp_servers = 1
DHCP4.OPTION[24]: dhcp_lease_time = 86400
DHCP4.OPTION[25]: dhcp_rebinding_time = 75600
DHCP4.OPTION[26]: requested_netbios_name_servers = 1
DHCP4.OPTION[27]: subnet_mask = 255.255.255.0
DHCP4.OPTION[28]: network_number = 192.168.1.0
DHCP4.OPTION[29]: requested_routers = 1
DHCP4.OPTION[30]: dhcp_server_identifier = 192.168.1.254
IP6.ADDRESS[1]: 2602:306:b803:4bf0::3ec/128
IP6.ADDRESS[2]: 2602:306:b803:4bf0:459d:2089:bd3e:a69e/128
IP6.ADDRESS[3]: fe80::<IP6 'eth1' [IF1]>/64
IP6.GATEWAY: fe80::62fe:20ff:fe51:413d
IP6.ROUTE[1]: dst = 2602:306:b803:4bf0::/64, nh = ::, mt = 100
IP6.ROUTE[2]: dst = fe80::62fe:20ff:fe51:413d/128, nh = ::, mt = 100
IP6.DNS[1]: 2602:306:b803:4bf0::1
DHCP6.OPTION[1]: dhcp6_client_id = 0:1:0:1:1d:31:a8:25:dc:85:de:27:ef:cd
DHCP6.OPTION[2]: dhcp6_name_servers = 2602:306:b803:4bf0::1
DHCP6.OPTION[3]: requested_dhcp6_name_servers = 1
DHCP6.OPTION[4]: rebind = 5760
DHCP6.OPTION[5]: max_life = 7500
DHCP6.OPTION[6]: preferred_life = 7200
DHCP6.OPTION[7]: requested_dhcp6_domain_search = 1
DHCP6.OPTION[8]: requested_dhcp6_client_id = 1
DHCP6.OPTION[9]: life_starts = 1474767064
DHCP6.OPTION[10]: ip6_address = 2602:306:b803:4bf0::3ec
DHCP6.OPTION[11]: ip6_prefixlen = 64
DHCP6.OPTION[12]: renew = 3600
DHCP6.OPTION[13]: starts = 1474767064
DHCP6.OPTION[14]: iaid = "+LEa"
DHCP6.OPTION[15]: dhcp6_server_id = 0:3:0:1:<MAC address>
GENERAL.DEVICE: virbr0
GENERAL.TYPE: bridge
GENERAL.NM-TYPE: NMDeviceBridge
GENERAL.VENDOR:
GENERAL.PRODUCT:
GENERAL.DRIVER: bridge
GENERAL.DRIVER-VERSION: 2.3
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR: <MAC 'virbr0' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 10 (unmanaged)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /virtual/device/placeholder/0
GENERAL.IP-IFACE: virbr0
GENERAL.IS-SOFTWARE: yes
GENERAL.NM-MANAGED: no
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: yes
BRIDGE.SLAVES:
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
IP4.ADDRESS[1]: 192.168.122.1/24
IP4.GATEWAY:
IP6.GATEWAY:
GENERAL.DEVICE: virbr0-nic
GENERAL.TYPE: tun
GENERAL.NM-TYPE: NMDeviceTun
GENERAL.VENDOR:
GENERAL.PRODUCT:
GENERAL.DRIVER: tun
GENERAL.DRIVER-VERSION: 1.6
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR: <MAC 'virbr0' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 10 (unmanaged)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /virtual/device/placeholder/3
GENERAL.IP-IFACE: virbr0-nic
GENERAL.IS-SOFTWARE: yes
GENERAL.NM-MANAGED: no
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: yes
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/#SFO FREE WIFI]] (600 root)
[connection] id=#SFO FREE WIFI | type=802-11-wireless
[802-11-wireless] ssid=#SFO FREE WIFI | mac-address=<MAC address>
[ipv6] method=auto
[ipv4] method=auto
[[/etc/NetworkManager/system-connections/Verizon-SM-N915V-3D94]] (600 root)
[connection] id=Verizon-SM-N915V-3D94 | type=802-11-wireless
[802-11-wireless] ssid=Verizon-SM-N915V-3D94 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/SCH-I6058B4B]] (600 root)
[connection] id=SCH-I6058B4B | type=802-11-wireless
[802-11-wireless] ssid=SCH-I6058B4B | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/KaiserGuest]] (600 root)
[connection] id=KaiserGuest | type=802-11-wireless
[802-11-wireless] ssid=KaiserGuest | mac-address=<MAC address>
[ipv6] method=auto
[ipv4] method=auto
[[/etc/NetworkManager/system-connections/BW - Encina]] (600 root)
[connection] id=BW - Encina | type=802-11-wireless
[802-11-wireless] ssid=BW - Encina | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/GuestANR]] (600 root)
[connection] id=GuestANR | type=802-11-wireless
[802-11-wireless] ssid=GuestANR | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/ATT4074 1]] (600 root)
[connection] id=ATT4074 1 | type=802-11-wireless
[802-11-wireless] ssid=ATT4074 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/HOME-EF6E-2.4]] (600 root)
[connection] id=HOME-EF6E-2.4 | type=802-11-wireless
[802-11-wireless] ssid=HOME-EF6E-2.4 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Verizon VS985 4G DA29]] (600 root)
[connection] id=Verizon VS985 4G DA29 | type=802-11-wireless
[802-11-wireless] ssid=Verizon VS985 4G DA29 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/HTC6535LVW f7 70]] (600 root)
[connection] id=HTC6535LVW f7 70 | type=802-11-wireless
[802-11-wireless] ssid=HTC6535LVW f7 70 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/ATT640]] (600 root)
[connection] id=ATT640 | type=802-11-wireless
[802-11-wireless] ssid=ATT640 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/DEADPOOL ECO1]] (600 root)
[connection] id=DEADPOOL ECO1 | type=802-11-wireless
[802-11-wireless] ssid=DEADPOOL ECO1 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/SCH-I5352986]] (600 root)
[connection] id=SCH-I5352986 | type=802-11-wireless
[802-11-wireless] ssid=SCH-I5352986 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/ATT4074]] (600 root)
[connection] id=ATT4074 | type=802-11-wireless
[802-11-wireless] ssid=ATT4074 | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/BWPacificGrove]] (600 root)
[connection] id=BWPacificGrove | type=802-11-wireless
[802-11-wireless] ssid=BWPacificGrove | mac-address=<MAC address>
[ipv6] method=auto
[ipv4] method=auto
##### iw reg get ########################
nl80211 not found.
##### iwlist channels ###################
lo no frequency information.
virbr0 no frequency information.
eth1 no frequency information.
virbr0-nic no frequency information.
##### iwlist scan #######################
lo Interface doesn't support scanning.
virbr0 Interface doesn't support scanning.
eth1 Interface doesn't support scanning.
virbr0-nic Interface doesn't support scanning.
##### module infos ######################
##### module parameters #################
##### /etc/modules ######################
lp
asus-wmi
asus-nb-wmi
lp
lp
##### modprobe options ##################
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist AMD76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
[/etc/modprobe.d/oss-compat.conf]
install snd-pcm modprobe --ignore-install snd-pcm $CMDLINE_OPTS && { modprobe --quiet snd-pcm-oss ; : ; }
install snd-mixer modprobe --ignore-install snd-mixer $CMDLINE_OPTS && { modprobe --quiet snd-mixer-oss ; : ; }
install snd-seq modprobe --ignore-install snd-seq $CMDLINE_OPTS && { modprobe --quiet snd-seq-midi ; modprobe --quiet snd-seq-oss ; : ; }
[/etc/modprobe.d/osspd.conf]
blacklist snd-pcm-oss
blacklist snd-mixer-oss
blacklist snd-seq-oss
[/etc/modprobe.d/qemu-system-x86.conf]
options kvm_intel nested=1
##### rc.local ##########################
exit 0
##### pm-utils ##########################
[/etc/pm/sleep.d/11_usb_s3] (755 root)
case "${1}" in
suspend | hibernate)
for i in `lspci -vv | grep "USB controller" | awk '/EHCI/ {print $1}'`
do
echo "0000:$i" > /sys/bus/pci/drivers/ehci_hcd/unbind
done
;;
resume | thaw)
for i in `lspci -vv | grep "USB controller" | awk '/EHCI/ {print $1}'`
do
echo "0000:$i" > /sys/bus/pci/drivers/ehci_hcd/bind
done
;;
esac
##### udev rules ########################
[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.3/0000:04:00.2 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x168c:/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0 (ath9k)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
# PCI device 0x14e4:/sys/devices/pci0000:00/0000:00:1c.1/0000:02:00.0 (brcmsmac)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan1"
# PCI device 0x1969:/sys/devices/pci0000:00/0000:00:1c.3/0000:03:00.0 (alx)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth1' [IF1]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
##### dmesg #############################
[ 20.645767] Qualcomm Atheros(R) AR813x/AR815x/AR816x PCI-E Ethernet Network Driver
[ 20.758199] alx: Atheros Gigabit Network Connection
[ 21.046947] psmouse serio4: elantech: assuming hardware version 4 (with firmware version 0x361f03)
[ 31.601528] ADDRCONF(NETDEV_UP): eth1: link is not ready
[ 34.422405] device virbr0-nic entered promiscuous mode
[ 34.891842] virbr0: topology change detected, propagating
[ 34.891851] virbr0: port 1(virbr0-nic) entering forwarding state (repeated 3 times)
[ 35.317521] ADDRCONF(NETDEV_UP): virbr0-nic: link is not ready (repeated 2 times)
[ 113.339703] ADDRCONF(NETDEV_UP): eth1: link is not ready (repeated 3 times)
[ 217.524593] ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[ 327.371436] alx 0000:03:00.0: eth1: speed = 0x2f, autoneg = 1
[ 377.261051] ADDRCONF(NETDEV_UP): eth1: link is not ready (repeated 6 times)
[ 672.698687] ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
########## wireless info END ############
EDIT: Après avoir suivi ce forum j'ai remarqué que lspci -vnn -d 14e4: donne Capabilities: <access denied>. Lors de la recherche de /var/lib/dkms/broadcom-wl/ comme suggéré, il n'existait pas. Je ne sais pas ce que cela signifie, mais cela semble important peut-être.
EDIT: Les solutions ici ne fonctionnaient pas non plus.
EDIT: Un de mes amis l'a jeté un coup d'oeil et s'est dit que cela pouvait être lié à un problème lié à l'UEFI.
Vous devez d’abord installer le noyau correct en
Sudo apt install linux-generic
Puis supprimez le mauvais pilote en
Sudo apt purge bcmwl-kernel-source
Après un redémarrage, tout devrait fonctionner.