当我点击 wifi 开关时，它会切换到开启状态，然后立即切换回关闭状态。没有 Wifi 网络出现。
sudo lshw -C network给我：
*-network DISABLED
description: Wireless interface
product: Wireless 8260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 3a
serial: 00:c2:c6:f1:83:49
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.4.0-31-generic firmware=16.242414.0 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
无线信息脚本的输出：
########## wireless info START ##########
Report from: 16 Nov 2016 11:13 AEDT +1100
Booted last: 16 Nov 2016 00:00 AEDT +1100
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 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 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]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)
Subsystem: Intel Corporation Wireless 8260 [8086:9010]
Kernel driver in use: iwlwifi
##### lsusb #############################
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 8087:0a2b Intel Corp.
Bus 001 Device 004: ID 05c8:03a2 Cheng Uei Precision Industry Co., Ltd (Foxlink)
Bus 001 Device 003: ID 1a2c:0042 China Resource Semico Co., Ltd
Bus 001 Device 010: ID 18d1:4ee1 Google Inc. Nexus 4 / 10
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-wireless: Wireless LAN
Soft blocked: yes
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
##### lsmod #############################
dell_wmi_aio 16384 0
acer_wmi 20480 0
sparse_keymap 16384 2 dell_wmi_aio,acer_wmi
iwlmvm 311296 0
mac80211 737280 1 iwlmvm
iwlwifi 200704 1 iwlmvm
cfg80211 565248 3 iwlwifi,mac80211,iwlmvm
mxm_wmi 16384 1 nouveau
video 40960 3 i915_bpo,acer_wmi,nouveau
wmi 20480 4 dell_wmi_aio,acer_wmi,mxm_wmi,nouveau
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
wlp2s0 Link encap:Ethernet HWaddr <MAC 'wlp2s0' [IF1]>
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:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
##### iwconfig ##########################
lo no wireless extensions.
wlp2s0 IEEE 802.11abgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 2531 1 0 00:34 ? 00:00:00 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlp2s0
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Intel Corporation
GENERAL.PRODUCT: Wireless 8260
GENERAL.DRIVER: iwlwifi
GENERAL.DRIVER-VERSION: 4.4.0-31-generic
GENERAL.FIRMWARE-VERSION: 16.242414.0
GENERAL.HWADDR: <MAC 'wlp2s0' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.4/0000:02:00.0/net/wlp2s0
GENERAL.IP-IFACE:
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: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: yes
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: yes
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
##### iw reg get ########################
Region: Australia/Sydney (based on set time zone)
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
(5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
(5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
lo no frequency information.
wlp2s0 32 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Channel 36 : 5.18 GHz
Channel 40 : 5.2 GHz
Channel 44 : 5.22 GHz
Channel 48 : 5.24 GHz
Channel 52 : 5.26 GHz
Channel 56 : 5.28 GHz
Channel 60 : 5.3 GHz
Channel 64 : 5.32 GHz
Channel 100 : 5.5 GHz
Channel 104 : 5.52 GHz
Channel 108 : 5.54 GHz
Channel 112 : 5.56 GHz
Channel 116 : 5.58 GHz
Channel 120 : 5.6 GHz
Channel 124 : 5.62 GHz
Channel 128 : 5.64 GHz
Channel 132 : 5.66 GHz
Channel 136 : 5.68 GHz
Channel 140 : 5.7 GHz
##### iwlist scan #######################
lo Interface doesn't support scanning.
wlp2s0 Interface doesn't support scanning : Network is down
##### module infos ######################
[iwlmvm]
filename: /lib/modules/4.4.0-31-generic/kernel/drivers/net/wireless/iwlwifi/mvm/iwlmvm.ko
license: GPL
author: Copyright(c) 2003- 2015 Intel Corporation <[email protected]>
description: The new Intel(R) wireless AGN driver for Linux
srcversion: 49DC02934CB3D8C312FF8E1
depends: iwlwifi,mac80211,cfg80211
intree: Y
vermagic: 4.4.0-31-generic SMP mod_unload modversions
parm: init_dbg:set to true to debug an ASSERT in INIT fw (default: false (bool)
parm: power_scheme:power management scheme: 1-active, 2-balanced, 3-low power, default: 2 (int)
parm: tfd_q_hang_detect:TFD queues hang detection (default: true (bool)
[mac80211]
filename: /lib/modules/4.4.0-31-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 2FFAEED0245CA1D97FE1E44
depends: cfg80211
intree: Y
vermagic: 4.4.0-31-generic SMP mod_unload modversions
parm: minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
[iwlwifi]
filename: /lib/modules/4.4.0-31-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
license: GPL
author: Copyright(c) 2003- 2015 Intel Corporation <[email protected]>
description: Intel(R) Wireless WiFi driver for Linux
firmware: iwlwifi-100-5.ucode
firmware: iwlwifi-1000-5.ucode
firmware: iwlwifi-135-6.ucode
firmware: iwlwifi-105-6.ucode
firmware: iwlwifi-2030-6.ucode
firmware: iwlwifi-2000-6.ucode
firmware: iwlwifi-5150-2.ucode
firmware: iwlwifi-5000-5.ucode
firmware: iwlwifi-6000g2b-6.ucode
firmware: iwlwifi-6000g2a-5.ucode
firmware: iwlwifi-6050-5.ucode
firmware: iwlwifi-6000-4.ucode
firmware: iwlwifi-7265D-13.ucode
firmware: iwlwifi-7265-13.ucode
firmware: iwlwifi-3160-13.ucode
firmware: iwlwifi-7260-13.ucode
firmware: iwlwifi-8000-13.ucode
srcversion: 651BF6CBF283F6F817B8F3A
depends: cfg80211
intree: Y
vermagic: 4.4.0-31-generic SMP mod_unload modversions
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm: amsdu_size_8K:enable 8K amsdu size (default 0) (int)
parm: fw_restart:restart firmware in case of error (default true) (bool)
parm: antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
parm: nvm_file:NVM file name (charp)
parm: d0i3_disable:disable d0i3 functionality (default: Y) (bool)
parm: lar_disable:disable LAR functionality (default: N) (bool)
parm: uapsd_disable:disable U-APSD functionality (default: Y) (bool)
parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm: power_save:enable WiFi power management (default: disable) (bool)
parm: power_level:default power save level (range from 1 - 5, default: 1) (int)
parm: fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)
[cfg80211]
filename: /lib/modules/4.4.0-31-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 25A45701AAA64DAC1E47D9D
depends:
intree: Y
vermagic: 4.4.0-31-generic SMP mod_unload modversions
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[iwlmvm]
init_dbg: N
power_scheme: 2
tfd_q_hang_detect: Y
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500
[iwlwifi]
11n_disable: 0
amsdu_size_8K: 0
antenna_coupling: 0
bt_coex_active: Y
d0i3_disable: Y
fw_monitor: N
fw_restart: Y
lar_disable: N
led_mode: 0
nvm_file: (null)
power_level: 0
power_save: N
swcrypto: 0
uapsd_disable: Y
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
##### modprobe options ##################
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/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
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[ 3094.695018] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 3094.695022] Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi
[ 3094.723609] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 3096.155939] Bluetooth: hci0: Waiting for firmware download to complete
[ 3104.904881] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled (repeated 4 times)
[ 3105.115643] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready (repeated 2 times)
[ 3130.142214] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled (repeated 4 times)
[ 3130.356813] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready (repeated 2 times)
[ 3152.294087] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled (repeated 4 times)
[ 3152.508276] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 3154.612555] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled (repeated 4 times)
[ 3154.825901] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready (repeated 2 times)
[ 3158.092907] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled (repeated 4 times)
[ 3158.303494] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready (repeated 2 times)
[ 3191.730743] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled (repeated 4 times)
[ 3191.941920] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready (repeated 2 times)
[ 3469.670647] iwlwifi 0000:02:00.0: L1 Enabled - LTR Enabled (repeated 4 times)
[ 3469.883616] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready (repeated 2 times)
########## wireless info END ############
答案1
dell_wmi_aio 16384 0 acer_wmi 20480 0 sparse_keymap 16384 2 dell_wmi_aio,acer_wmi iwlmvm
311296 0 mac80211 737280 1 iwlmvm iwlwifi
200704 1 iwlmvm cfg80211 565248 3 iwlwifi,mac80211,iwlmvm mxm_wmi 16384 1 nouveau video 40960 3 i915_bpo,acer_wmi,nouveau wmi 20480 4 dell_wmi_aio,acer_wmi,mxm_wmi,nouveau
您的小米 Air 要么是戴尔 OEM，要么是宏碁；但可能不是两者兼而有之。我们可能需要进行一些实验。从终端：
sudo -i
echo "blacklist acer-wmi" >> /etc/modprobe.d/blacklist.conf
exit
重新启动并重试：
rfkill list all
我们希望无线网络能够正常运作。