运行无线信息脚本后得到以下结果：
########## wireless info START ##########
Report from: 28 Jan 2017 00:54 IST +0530
Booted last: 27 Jan 2017 19:28 IST +0530
Script from: 08 Jul 2016 02:16 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 14.04.5 LTS
Release: 14.04
Codename: trusty
##### kernel ############################
Linux 3.13.0-38-generic #65somerville1-Ubuntu SMP Wed Oct 15 02:15:02 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, locale=en_IN, quiet, splash, radeon.modeset=0, nouveau.modeset=0, video.use_native_backlight=1, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
06:00.0 Network controller [0280]: Intel Corporation Wireless 3160 [8086:08b3] (rev 83)
Subsystem: Intel Corporation Dual Band Wireless AC 3160 [8086:8470]
Kernel driver in use: iwlwifi
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 Device [1028:06b0]
Kernel driver in use: r8169
##### lsusb #############################
Bus 001 Device 002: ID 8087:8001 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 002 Device 003: ID 8087:07dc Intel Corp.
Bus 002 Device 002: ID 0bda:5683 Realtek Semiconductor Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
##### lsmod #############################
iwlmvm 189813 0
mac80211 626557 1 iwlmvm
dell_wmi 12761 0
sparse_keymap 13948 1 dell_wmi
dell_laptop 18168 0
dcdbas 14928 1 dell_laptop
iwlwifi 169932 1 iwlmvm
cfg80211 484040 3 iwlwifi,mac80211,iwlmvm
wmi 19177 2 dell_led,dell_wmi
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF1]>
inet addr:192.168.1.102 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::<IP6 'eth0' [IF1]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:447498 errors:0 dropped:0 overruns:0 frame:0
TX packets:338214 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:597789847 (597.7 MB) TX bytes:37258224 (37.2 MB)
wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF2]>
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:238297 errors:0 dropped:0 overruns:0 frame:0
TX packets:189734 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:331915821 (331.9 MB) TX bytes:20432875 (20.4 MB)
##### iwconfig ##########################
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11abgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:on
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 1078 1 0 Jan27 ? 00:00:05 NetworkManager
##### NetworkManager info ###############
NetworkManager Tool
State: connected (global)
- Device: eth0 [Wired connection 1] -------------------------------------------
Type: Wired
Driver: r8169
State: connected
Default: yes
HW Address: <MAC 'eth0' [IF1]>
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 192.168.1.102
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 8.8.8.8
DNS: 172.16.0.1
- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: iwlwifi
State: unavailable
Default: no
HW Address: <MAC 'wlan0' [IF2]>
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=false
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/SHIVA]] (600 root)
[connection] id=SHIVA | type=802-11-wireless
[802-11-wireless] ssid=SHIVA | mac-address=<MAC 'wlan0' [IF2]>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/C1st(b)]] (600 root)
[connection] id=C1st(b) | type=802-11-wireless
[802-11-wireless] ssid=C1st(b) | mac-address=<MAC 'wlan0' [IF2]>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/C-1st(a)]] (600 root)
[connection] id=C-1st(a) | type=802-11-wireless
[802-11-wireless] ssid=C-1st(a) | mac-address=<MAC 'wlan0' [IF2]>
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: Asia/Kolkata (based on set time zone)
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
##### iwlist channels ###################
eth0 no frequency information.
lo no frequency information.
wlan0 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 #######################
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
wlan0 Interface doesn't support scanning : Network is down
##### module infos ######################
[iwlmvm]
filename: /lib/modules/3.13.0-38-generic/kernel/drivers/net/wireless/iwlwifi/mvm/iwlmvm.ko
license: GPL
author: Copyright(c) 2003-2013 Intel Corporation <[email protected]>
version: in-tree:
description: The new Intel(R) wireless AGN driver for Linux
srcversion: 7AF85C9FBD17AD993F1CC33
depends: iwlwifi,mac80211,cfg80211
intree: Y
vermagic: 3.13.0-38-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 04:AD:CA:E0:24:C0:38:DD:69:A4:B6:6B:29:B3:E8:78:11:D4:E3:81
sig_hashalgo: sha512
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)
[mac80211]
filename: /lib/modules/3.13.0-38-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 123C230E7AC85A31E4CA28B
depends: cfg80211
intree: Y
vermagic: 3.13.0-38-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 04:AD:CA:E0:24:C0:38:DD:69:A4:B6:6B:29:B3:E8:78:11:D4:E3:81
sig_hashalgo: sha512
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/3.13.0-38-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
license: GPL
author: Copyright(c) 2003-2013 Intel Corporation <[email protected]>
version: in-tree:
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-7265-7.ucode
firmware: iwlwifi-3160-7.ucode
firmware: iwlwifi-7260-7.ucode
srcversion: 783BEDE878FE84FE74C8D63
depends: cfg80211
intree: Y
vermagic: 3.13.0-38-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 04:AD:CA:E0:24:C0:38:DD:69:A4:B6:6B:29:B3:E8:78:11:D4:E3:81
sig_hashalgo: sha512
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 (defualt: 0 dB) (int)
parm: wd_disable:Disable stuck queue watchdog timer 0=system default, 1=disable, 2=enable (default: 0) (int)
parm: nvm_file:NVM file name (charp)
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)
[cfg80211]
filename: /lib/modules/3.13.0-38-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: C2478077E22138832B71659
depends:
intree: Y
vermagic: 3.13.0-38-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 04:AD:CA:E0:24:C0:38:DD:69:A4:B6:6B:29:B3:E8:78:11:D4:E3:81
sig_hashalgo: sha512
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
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
probe_wait_ms: 500
[iwlwifi]
11n_disable: 0
amsdu_size_8K: 0
antenna_coupling: 0
bt_coex_active: Y
fw_restart: Y
led_mode: 0
nvm_file: (null)
power_level: 0
power_save: N
swcrypto: 0
wd_disable: 1
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
lp
rtc
lp
rtc
##### 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-i2c_hid.conf]
blacklist i2c_hid
[/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 ##########################
[/etc/pm/power.d/disable_wol] (777 root)
CONFFILE=/etc/default/tlp
LIBDIRS='/usr/lib /usr/lib64'
for d in ${LIBDIRS}; do
if [ -d "${d}/pm-utils/power.d" ]; then
blocked="${d}/pm-utils/power.d/${0##*/}"
break
fi
done
if [ -n "$blocked" ] && [ -x "$blocked" ]; then
# else nothing to disable -> don't read $CONFFILE
if [ -e "$CONFFILE" ] && . "$CONFFILE" -- && [ "$TLP_ENABLE" = '1' ]; then
# TLP is enabled -> disable $blocked
echo "Notice: '${blocked}' disabled by TLP."
else
exec "$blocked" $*
fi
fi
exit 0
[/etc/pm/power.d/laptop-mode] (777 root)
CONFFILE=/etc/default/tlp
LIBDIRS='/usr/lib /usr/lib64'
for d in ${LIBDIRS}; do
if [ -d "${d}/pm-utils/power.d" ]; then
blocked="${d}/pm-utils/power.d/${0##*/}"
break
fi
done
if [ -n "$blocked" ] && [ -x "$blocked" ]; then
# else nothing to disable -> don't read $CONFFILE
if [ -e "$CONFFILE" ] && . "$CONFFILE" -- && [ "$TLP_ENABLE" = '1' ]; then
# TLP is enabled -> disable $blocked
echo "Notice: '${blocked}' disabled by TLP."
else
exec "$blocked" $*
fi
fi
exit 0
[/etc/pm/power.d/pci_devices] (777 root)
CONFFILE=/etc/default/tlp
LIBDIRS='/usr/lib /usr/lib64'
for d in ${LIBDIRS}; do
if [ -d "${d}/pm-utils/power.d" ]; then
blocked="${d}/pm-utils/power.d/${0##*/}"
break
fi
done
if [ -n "$blocked" ] && [ -x "$blocked" ]; then
# else nothing to disable -> don't read $CONFFILE
if [ -e "$CONFFILE" ] && . "$CONFFILE" -- && [ "$TLP_ENABLE" = '1' ]; then
# TLP is enabled -> disable $blocked
echo "Notice: '${blocked}' disabled by TLP."
else
exec "$blocked" $*
fi
fi
exit 0
[/etc/pm/power.d/pcie_aspm] (777 root)
CONFFILE=/etc/default/tlp
LIBDIRS='/usr/lib /usr/lib64'
for d in ${LIBDIRS}; do
if [ -d "${d}/pm-utils/power.d" ]; then
blocked="${d}/pm-utils/power.d/${0##*/}"
break
fi
done
if [ -n "$blocked" ] && [ -x "$blocked" ]; then
# else nothing to disable -> don't read $CONFFILE
if [ -e "$CONFFILE" ] && . "$CONFFILE" -- && [ "$TLP_ENABLE" = '1' ]; then
# TLP is enabled -> disable $blocked
echo "Notice: '${blocked}' disabled by TLP."
else
exec "$blocked" $*
fi
fi
exit 0
[/etc/pm/power.d/sched-powersave] (777 root)
CONFFILE=/etc/default/tlp
LIBDIRS='/usr/lib /usr/lib64'
for d in ${LIBDIRS}; do
if [ -d "${d}/pm-utils/power.d" ]; then
blocked="${d}/pm-utils/power.d/${0##*/}"
break
fi
done
if [ -n "$blocked" ] && [ -x "$blocked" ]; then
# else nothing to disable -> don't read $CONFFILE
if [ -e "$CONFFILE" ] && . "$CONFFILE" -- && [ "$TLP_ENABLE" = '1' ]; then
# TLP is enabled -> disable $blocked
echo "Notice: '${blocked}' disabled by TLP."
else
exec "$blocked" $*
fi
fi
exit 0
[/etc/pm/power.d/usb_bluetooth] (777 root)
CONFFILE=/etc/default/tlp
LIBDIRS='/usr/lib /usr/lib64'
for d in ${LIBDIRS}; do
if [ -d "${d}/pm-utils/power.d" ]; then
blocked="${d}/pm-utils/power.d/${0##*/}"
break
fi
done
if [ -n "$blocked" ] && [ -x "$blocked" ]; then
# else nothing to disable -> don't read $CONFFILE
if [ -e "$CONFFILE" ] && . "$CONFFILE" -- && [ "$TLP_ENABLE" = '1' ]; then
# TLP is enabled -> disable $blocked
echo "Notice: '${blocked}' disabled by TLP."
else
exec "$blocked" $*
fi
fi
exit 0
[/etc/pm/power.d/wireless] (777 root)
CONFFILE=/etc/default/tlp
LIBDIRS='/usr/lib /usr/lib64'
for d in ${LIBDIRS}; do
if [ -d "${d}/pm-utils/power.d" ]; then
blocked="${d}/pm-utils/power.d/${0##*/}"
break
fi
done
if [ -n "$blocked" ] && [ -x "$blocked" ]; then
# else nothing to disable -> don't read $CONFFILE
if [ -e "$CONFFILE" ] && . "$CONFFILE" -- && [ "$TLP_ENABLE" = '1' ]; then
# TLP is enabled -> disable $blocked
echo "Notice: '${blocked}' disabled by TLP."
else
exec "$blocked" $*
fi
fi
exit 0
[/etc/pm/power.d/xfs_buffer] (777 root)
CONFFILE=/etc/default/tlp
LIBDIRS='/usr/lib /usr/lib64'
for d in ${LIBDIRS}; do
if [ -d "${d}/pm-utils/power.d" ]; then
blocked="${d}/pm-utils/power.d/${0##*/}"
break
fi
done
if [ -n "$blocked" ] && [ -x "$blocked" ]; then
# else nothing to disable -> don't read $CONFFILE
if [ -e "$CONFFILE" ] && . "$CONFFILE" -- && [ "$TLP_ENABLE" = '1' ]; then
# TLP is enabled -> disable $blocked
echo "Notice: '${blocked}' disabled by TLP."
else
exec "$blocked" $*
fi
fi
exit 0
##### udev rules ########################
[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8136 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF1]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x8086:0x08b3 (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF2]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #############################
[ 5241.938665] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.0.1.2d.d.bseq
[ 5242.009628] Bluetooth: hci0: Intel Bluetooth firmware patch completed and activated
[ 5243.285618] iwlwifi 0000:06:00.0: L1 Enabled; Disabling L0S (repeated 2 times)
[ 5243.297564] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 5243.538649] r8169 0000:07:00.0 eth0: link down
[ 5243.538695] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 5250.852433] wlan0: authenticate with <MAC address>
[ 5250.854757] wlan0: direct probe to <MAC address> (try 1/3)
[ 5251.055565] wlan0: direct probe to <MAC address> (try 2/3)
[ 5251.259875] wlan0: direct probe to <MAC address> (try 3/3)
[ 5251.462756] wlan0: authentication with <MAC address> timed out
[ 5950.473430] r8169 0000:07:00.0 eth0: link up
[ 5950.473553] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 5950.478319] r8169 0000:07:00.0 eth0: link up
[ 9816.472322] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[13484.924190] r8169 0000:07:00.0 eth0: link down
[13489.441904] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[13934.309508] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[14115.723031] r8169 0000:07:00.0 eth0: link down
[14117.250382] r8169 0000:07:00.0 eth0: link up
[14117.250398] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
########## wireless info END ############
答案1
您的问题是您的 Wifi 适配器被软阻止。逐个尝试这些命令-
sudo rmmod -f iwlwifi
sudo rfkill unblock all
sudo modprobe iwlwifi
我使用这个解决方案修复了我朋友的笔记本电脑，它使用的是 athk5 wifi 内核，因为你有 iwlwifi 内核，这些命令可能对你有用。另外，如果你有一个可以打开或关闭 wifi 的键，也可以试试。在我的情况下是 fn+F2，对你来说可能有所不同