我面临一个大问题无线上网在 Ubuntu 14.0.4 中。系统是联想 G580。
我已经阅读了近 50 多个与此问题相关的帖子，但没有一个对我有帮助。
细节:- 我执行的命令及其结果如下：-
命令：-请参阅lspci-nnk| grep -iA2 净
01:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8162 Fast Ethernet [1969:1090] (rev 10)
Subsystem: Lenovo Device [17aa:3979]
Kernel driver in use: alx
02:00.0 Network controller [0280]: Qualcomm Atheros AR9485 Wireless Network Adapter [168c:0032] (rev 01)
Subsystem: Lenovo Device [17aa:3218]
Kernel driver in use: ath9k
命令：- rfkill 列出全部
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes
命令:- lsusb
Bus 004 Device 003: ID 04f2:b2e2 Chicony Electronics Co., Ltd
Bus 004 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 003 Device 003: ID 17ef:6042 Lenovo
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
命令:- lsmod
Module Size Used by
ath9k 147456 0
ath9k_common 32768 1 ath9k
ath9k_hw 458752 2 ath9k_common,ath9k
ath 32768 3 ath9k_common,ath9k,ath9k_hw
mac80211 708608 1 ath9k
cfg80211 524288 4 ath,ath9k_common,ath9k,mac80211
intel_rapl 20480 0
iosf_mbi 16384 1 intel_rapl
x86_pkg_temp_thermal 16384 0
intel_powerclamp 20480 0
coretemp 16384 0
rfcomm 69632 0
bnep 20480 2
kvm_intel 151552 0
kvm 479232 1 kvm_intel
bluetooth 491520 10 bnep,rfcomm
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
snd_hda_codec_hdmi 53248 1
snd_hda_codec_conexant 24576 1
snd_hda_codec_generic 69632 1 snd_hda_codec_conexant
aesni_intel 172032 0
snd_hda_intel 32768 3
snd_hda_controller 32768 1 snd_hda_intel
snd_hda_codec 143360 5 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
aes_x86_64 20480 1 aesni_intel
snd_hwdep 20480 1 snd_hda_codec
lrw 16384 1 aesni_intel
gf128mul 16384 1 lrw
glue_helper 16384 1 aesni_intel
snd_pcm 106496 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
ablk_helper 16384 1 aesni_intel
cryptd 20480 3 ghash_clmulni_intel,aesni_intel,ablk_helper
arc4 16384 2
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
uvcvideo 90112 0
videobuf2_vmalloc 16384 1 uvcvideo
nls_iso8859_1 16384 1
serio_raw 16384 0
joydev 20480 0
snd_seq 65536 2 snd_seq_midi_event,snd_seq_midi
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_core 53248 1 uvcvideo
v4l2_common 16384 1 videobuf2_core
videodev 159744 3 uvcvideo,v4l2_common,videobuf2_core
media 24576 2 uvcvideo,videodev
rtsx_usb_ms 20480 0
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
memstick 20480 1 rtsx_usb_ms
snd_timer 32768 2 snd_pcm,snd_seq
snd 86016 17 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
i915 1048576 3
lpc_ich 24576 0
shpchp 40960 0
drm_kms_helper 126976 1 i915
parport_pc 32768 0
mei_me 20480 0
soundcore 16384 2 snd,snd_hda_codec
mei 90112 1 mei_me
ppdev 20480 0
drm 344064 5 i915,drm_kms_helper
i2c_algo_bit 16384 1 i915
lp 20480 0
parport 45056 3 lp,ppdev,parport_pc
ideapad_laptop 20480 0
sparse_keymap 16384 1 ideapad_laptop
video 20480 1 i915
mac_hid 16384 0
rtsx_usb_sdmmc 28672 0
rtsx_usb 24576 2 rtsx_usb_sdmmc,rtsx_usb_ms
hid_generic 16384 0
usbhid 53248 0
hid 110592 2 hid_generic,usbhid
ahci 36864 4
psmouse 114688 0
alx 36864 0
libahci 32768 1 ahci
mdio 16384 1 alx
命令:-iwconfig
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
lo no wireless extensions.
命令:- iwlist 陈
wlan0 13 channels in total; available frequencies :
`enter code here` 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
lo no frequency information.
命令:-sudo iwlist 扫描
eth0 Interface doesn't support scanning.
wlan0 Interface doesn't support scanning : Network is down
lo Interface doesn't support scanning.
命令：-uname-rv
3.19.0-25-generic #26~14.04.1-Ubuntu SMP Fri Jul 24 21:16:20 UTC 2015
命令：-cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
在 Unity 顶部面板的右上角，“连接”选项卡显示“Wi-Fi 已被硬件开关禁用”。
我也尝试通过 Windows 10 中的疑难解答程序修复此问题，但也没有结果。它显示 Wi-Fi 连接已被禁用。
我希望你们能解决这个问题，让我的新年快乐。:D
提前致谢。
答案1
尝试使用键盘上的功能 (Fn) 键组合来打开 WLAN。（找到 Fn 键和带有彩色 WiFi 天线的键，然后按住 Fn 键，再按下彩色 WiFi 天线按钮。）
这能解决问题吗？或者确保您已经尝试过这个。
答案2
由于常规方法不起作用，尽管我发现这只适用于东芝笔记本电脑。
关闭笔记本电脑 取出电池和电源线 按住电源按钮 30 秒
更换电池、插入电源线并启动