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ubuntu 18.04 LTS安装后，点wifi 提示：未发现wifi适配器.怎么用wifi啊

把下面指令 複製 貼進終端機 執行
0. uname -a
1. sudo lspci -knn | grep -A5 Wireless
1-1. sudo lsusb # 如果你的 wifi 是 USB 卡
2. sudo lshw -numeric -class network
3. sudo ip addr show
4. sudo ip route show
5. sudo rfkill list all
6. sudo nmcli dev status # wlan0
把指令及回應結果全部直接 選取/複製/貼上來

flkill
提示未找到命令

flkill
提示未找到命令

把指令及回應結果全部直接 選取/複製/貼上來
避免摘錄 以免遺漏重要訊息

执行了结果如下：
DEVICE TYPE STATE CONNECTION
ens33 ethernet 已连接 有线连接1
lo loopback 未托管 --

我重启之后，从设置那里进去点wifi,依然显示未发现WI-Fi适配器，请确认您已插入wi-fi适配器并打开

viewtopic.php?p=3205107#p3205107
把下面指令 複製 貼進終端機 執行
0. uname -a
1. sudo lspci -knn | grep -A5 Wireless
1-1. sudo lsusb # 如果你的 wifi 是 USB 卡
2. sudo lshw -numeric -class network
3. sudo ip addr show
4. sudo ip route show
5. sudo rfkill list all
6. sudo nmcli dev status # wlan0
把指令及回應結果全部直接 選取/複製/貼上來

liu@liu-virtual-machine:/etc/network$ uname -a

Linux liu-virtual-machine 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

liu@liu-virtual-machine:/etc/network$ sudo lspci -knn | grep -A5 Wireless

liu@liu-virtual-machine:/etc/network$ sudo lshw -numeric -class network
*-network
description: Ethernet interface
product: 82545EM Gigabit Ethernet Controller (Copper) [8086:100F]
vendor: Intel Corporation [8086]
physical id: 1
bus info: pci@0000:02:01.0
logical name: ens33
version: 01
serial: 00:0c:29:f2:c7:2a
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 66MHz
capabilities: pm pcix bus_master cap_list rom ethernet physical logical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000 driverversion=7.3.21-k8-NAPI duplex=full ip=192.168.111.128 latency=0 link=yes mingnt=255 multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:19 memory:fd5c0000-fd5dffff memory:fdff0000-fdffffff ioport:2000(size=64) memory:fd500000-fd50ffff

liu@liu-virtual-machine:/etc/network$ sudo ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:0c:29:f2:c7:2a brd ff:ff:ff:ff:ff:ff
inet 192.168.111.128/24 brd 192.168.111.255 scope global dynamic noprefixroute ens33
valid_lft 1642sec preferred_lft 1642sec
inet6 fe80::1770:5b65:47ad:1524/64 scope link noprefixroute
valid_lft forever preferred_lft forever

liu@liu-virtual-machine:/etc/network$ sudo ip route show
169.254.0.0/16 dev ens33 scope link metric 1000
192.168.111.0/24 dev ens33 proto kernel scope link src 192.168.111.128 metric 100

liu@liu-virtual-machine:/etc/network$ sudo rfkill list all
7: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
liu@liu-virtual-machine:/etc/network$ sudo nmcli dev status # wlan0
DEVICE TYPE STATE CONNECTION
ens33 ethernet connected Wired connection 1
lo loopback unmanaged --

liu@liu-virtual-machine:/etc/network$

好像是同一個問題 請不要分散多帖
viewtopic.php?p=3205245#p3205245
最好自己一個單獨的主帖 避免跟帖

poloshiao 写了： ↑2018-05-07 18:14 把下面指令 複製 貼進終端機 執行
0. uname -a
1. sudo lspci -knn | grep -A5 Wireless
1-1. sudo lsusb # 如果你的 wifi 是 USB 卡
2. sudo lshw -numeric -class network
3. sudo ip addr show
4. sudo ip route show
5. sudo rfkill list all
6. sudo nmcli dev status # wlan0
把指令及回應結果全部直接 選取/複製/貼上來

还请帮下忙，折腾几天没搞定。



uname -a
Linux ht-ZHAOYANG-E42-80 4.15.0-34-generic #37-Ubuntu SMP Mon Aug 27 15:21:48 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

sudo lspci -knn | grep -A5 Wireless

03:00.0 Network controller [0280]: Intel Corporation Dual Band Wireless-AC 3165 Plus Bluetooth [8086:3166] (rev 99)
Subsystem: Intel Corporation Dual Band Wireless-AC 3165 Plus Bluetooth [8086:4210]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi

sudo lshw -numeric -class network
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10EC:8168]
vendor: Realtek Semiconductor Co., Ltd. [10EC]
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 15
serial: a8:1e:84:c0:a8:34
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix 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=rtl8168h-2_0.0.2 02/26/15 ip=10.175.158.21 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:16 ioport:e000(size=256) memory:e1104000-e1104fff memory:e1100000-e1103fff
*-network DISABLED
description: Wireless interface
product: Dual Band Wireless-AC 3165 Plus Bluetooth [8086:3166]
vendor: Intel Corporation [8086]
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 99
serial: cc:2f:71:88:26:10
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-34-generic firmware=29.1044073957.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:128 memory:e1000000-e1001fff



sudo ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether a8:1e:84:c0:a8:34 brd ff:ff:ff:ff:ff:ff
inet 10.175.158.21/25 brd 10.175.158.127 scope global noprefixroute enp2s0
valid_lft forever preferred_lft forever
inet6 fe80::4699:d033:3c54:b22/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: wlp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether cc:2f:71:88:26:10 brd ff:ff:ff:ff:ff:ff

sudo ip route show
default via 10.175.158.1 dev enp2s0 proto static metric 100
10.175.158.0/25 dev enp2s0 proto kernel scope link src 10.175.158.21 metric 100
169.254.0.0/16 dev enp2s0 scope link metric 1000

sudo rfkill list all
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: yes
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: yes
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

sudo nmcli dev status # wlan0
DEVICE TYPE STATE CONNECTION
enp2s0 ethernet 已连接 emis3f
A8:C8:3A:16:24:3B bt 已断开 --
wlp3s0 wifi 不可用 --
lo loopback 未托管 --

*-network DISABLED
description: Wireless interface
product: Dual Band Wireless-AC 3165 Plus Bluetooth [8086:3166]
vendor: Intel Corporation [8086]
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 99
serial: cc:2f:71:88:26:10
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-34-generic firmware=29.1044073957.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:128 memory:e1000000-e1001fff

1.無線網卡介面 未合適啟用
1-1. 目前作用中驅動
driver=iwlwifi driverversion=4.15.0-34-generic

sudo rfkill list all
0: ideapad_wlan: Wireless LAN
Hard blocked: yes
1: ideapad_bluetooth: Bluetooth
Hard blocked: yes

2. 參閱你的主板使用說明書
是否被關閉了

3. 請詳細參閱
https://askubuntu.com/questions/818626/ ... -work?rq=1
Kubuntu 16.04.1 cannot get intel 3165 wireless adapter to work?

安装时是不是没有勾选“安装第三方软件”，如果是的话，重装，选择该选项

poloshiao 写了： ↑2018-05-07 18:14 把下面指令 複製 貼進終端機 執行
0. uname -a
1. sudo lspci -knn | grep -A5 Wireless
1-1. sudo lsusb # 如果你的 wifi 是 USB 卡
2. sudo lshw -numeric -class network
3. sudo ip addr show
4. sudo ip route show
5. sudo rfkill list all
6. sudo nmcli dev status # wlan0
把指令及回應結果全部直接 選取/複製/貼上來

tianajw@TianaJW:~$ uname -a
Linux TianaJW 4.15.0-36-generic #39-Ubuntu SMP Mon Sep 24 16:19:09 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
tianajw@TianaJW:~$ sudo lspci -knn | grep -A5 Wireless
[sudo] tianajw 的密码：
03:00.0 Network controller [0280]: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) [168c:002e] (rev 01)
Subsystem: Quanta Microsystems, Inc AR9287 Wireless Network Adapter (PCI-Express) [1a32:2309]
Kernel driver in use: ath9k
Kernel modules: ath9k
04:00.0 Ethernet controller [0200]: Broadcom Limited NetLink BCM57785 Gigabit Ethernet PCIe [14e4:16b5] (rev 10)
Subsystem: Acer Incorporated [ALI] NetLink BCM57785 Gigabit Ethernet PCIe [1025:0500]
Kernel driver in use: tg3
tianajw@TianaJW:~$ sudo lshw -numeric -class network
*-network DISABLED
description: Wireless interface
product: AR9287 Wireless Network Adapter (PCI-Express) [168C:2E]
vendor: Qualcomm Atheros [168C]
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 01
serial: 20:7c:8f:85:d1:7c
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=4.15.0-36-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:17 memory:f3900000-f390ffff
*-network
description: Ethernet interface
product: NetLink BCM57785 Gigabit Ethernet PCIe [14E4:16B5]
vendor: Broadcom Limited [14E4]
physical id: 0
bus info: pci@0000:04:00.0
logical name: enp4s0f0
version: 10
serial: 20:6a:8a:6f:e3:b5
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi msix pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 duplex=full firmware=sb ip=192.168.3.156 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:19 memory:f3800000-f380ffff memory:f3810000-f381ffff memory:cfa00000-cfa007ff
tianajw@TianaJW:~$ sudo ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp4s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 20:6a:8a:6f:e3:b5 brd ff:ff:ff:ff:ff:ff
inet 192.168.3.156/24 brd 192.168.3.255 scope global dynamic noprefixroute enp4s0f0
valid_lft 85976sec preferred_lft 85976sec
inet6 fe80::593:4ebc:14b8:7034/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: wlp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 20:7c:8f:85:d1:7c brd ff:ff:ff:ff:ff:ff
tianajw@TianaJW:~$ sudo ip route show
default via 192.168.3.1 dev enp4s0f0 proto dhcp metric 100
169.254.0.0/16 dev enp4s0f0 scope link metric 1000
192.168.3.0/24 dev enp4s0f0 proto kernel scope link src 192.168.3.156 metric 100
tianajw@TianaJW:~$ sudo rfkill list all
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: yes
1: acer-wireless: Wireless LAN
Soft blocked: yes
Hard blocked: no
tianajw@TianaJW:~$ sudo nmcli dev status # wlan0
DEVICE TYPE STATE CONNECTION
enp4s0f0 ethernet 已连接 有线连接 1
wlp3s0 wifi 不可用 --
lo loopback 未托管 --
tianajw@TianaJW:~$

*-network DISABLED
description: Wireless interface
product: AR9287 Wireless Network Adapter (PCI-Express) [168C:2E]
vendor: Qualcomm Atheros [168C]

請先參閱
https://bugs.launchpad.net/ubuntu/+sour ... ug/1754555
acer电脑无法启动wifi
网卡型号是：Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
各种方法都尝试了，最后在一个不起眼的角落里找到了方法，如下：

Linux stone-Inspiron-3543 4.15.0-29-generic #31-Ubuntu SMP Tue Jul 17 15:39:52 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07)
Subsystem: Dell RTL810xE PCI Express Fast Ethernet controller [1028:0655]
Kernel driver in use: r8169
Kernel modules: r8169
08:00.0 3D controller [0302]: NVIDIA Corporation GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] [10de:1140] (rev a1)
Subsystem: Dell GeForce 820M [1028:0655]
Kernel driver in use: nouveau
*-network
description: Network controller
product: BCM43142 802.11b/g/n [14E4:4365]
vendor: Broadcom Limited [14E4]
physical id: 0
bus info: pci@0000:06:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=bcma-pci-bridge latency=0
resources: irq:18 memory:f7200000-f7207fff
*-network
description: Ethernet interface
product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10EC:8136]
vendor: Realtek Semiconductor Co., Ltd. [10EC]
physical id: 0
bus info: pci@0000:07:00.0
logical name: enp7s0
version: 07
serial: 20:47:47:16:6d:f4
size: 100Mbit/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=full firmware=rtl8106e-1_0.0.1 06/29/12 ip=10.21.130.5 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:19 ioport:e000(size=256) memory:f7100000-f7100fff memory:f2100000-f2103fff
DEVICE TYPE STATE CONNECTION
enp7s0 ethernet 已连接 有线连接 1
lo loopback 未托管 --
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp7s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 20:47:47:16:6d:f4 brd ff:ff:ff:ff:ff:ff
inet 10.21.130.5/24 brd 10.21.130.255 scope global dynamic noprefixroute enp7s0
valid_lft 689789sec preferred_lft 689789sec
inet6 2001:250:3003:21d0:cdad:897b:daa4:9f8b/64 scope global temporary dynamic
valid_lft 603487sec preferred_lft 84511sec
inet6 2001:250:3003:21d0:e14b:e07c:40c6:d461/64 scope global dynamic mngtmpaddr noprefixroute
valid_lft 2591908sec preferred_lft 604708sec
inet6 fe80::9088:8afb:d5ea:c9ba/64 scope link noprefixroute
valid_lft forever preferred_lft forever
stone@stone-Inspiron-3543:~$ sudo ip route show
default via 10.21.130.254 dev enp7s0 proto dhcp metric 100
10.21.130.0/24 dev enp7s0 proto kernel scope link src 10.21.130.5 metric 100
169.254.0.0/16 dev enp7s0 scope link metric 1000
stone@stone-Inspiron-3543:~$ sudo ls -al /etc/resolv.conf
lrwxrwxrwx 1 root root 39 12月 7 2018 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf
stone@stone-Inspiron-3543:~$ sudo cat /etc/resolv.conf
# This file is managed by man:systemd-resolved(8). Do not edit.
#
# This is a dynamic resolv.conf file for connecting local clients to the
# internal DNS stub resolver of systemd-resolved. This file lists all
# configured search domains.
#
# Run "systemd-resolve --status" to see details about the uplink DNS servers
# currently in use.
#
# Third party programs must not access this file directly, but only through the
# symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,
# replace this symlink by a static file or a different symlink.
#
# See man:systemd-resolved.service(8) for details about the supported modes of
# operation for /etc/resolv.conf.

nameserver 127.0.0.53
search stu.edu.cn
我也是适配器问题， 请问怎么解决

poloshiao 写了： ↑2018-05-07 18:14 把下面指令 複製 貼進終端機 執行
0. uname -a
1. sudo lspci -knn | grep -A5 Wireless
1-1. sudo lsusb # 如果你的 wifi 是 USB 卡
2. sudo lshw -numeric -class network
3. sudo ip addr show
4. sudo ip route show
5. sudo rfkill list all
6. sudo nmcli dev status # wlan0
把指令及回應結果全部直接 選取/複製/貼上來