Ubuntu 14.04 中无线连接停止

Ubuntu 14.04 中无线连接停止

两天前,我在联想 G50-70 上安装了 Ubuntu 14.04,无线网络运行良好。但从昨天开始,我就无法连接到无线网络。笔记本电脑检测到网络,但无法连接。但有线连接工作正常。以下是输出sudo lshw -C network

    *-network               
   description: Ethernet interface
   product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:01:00.0
   logical name: eth0
   version: 10
   serial: 68:f7:28:53:ad:6e
   size: 100Mbit/s
   capacity: 1Gbit/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 1000bt 1000bt-fd autonegotiation
   configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-3_0.0.1 04/23/13 ip=10.0.79.15 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
   resources: irq:46 ioport:3000(size=256) memory:c0504000-c0504fff memory:c0500000-c0503fff

  *-network
   description: Wireless interface
   product: QCA9565 / AR9565 Wireless Network Adapter
   vendor: Qualcomm Atheros
   physical id: 0
   bus info: pci@0000:02:00.0
   logical name: wlan0
   version: 01
   serial: d0:53:49:4d:56:37
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
   configuration: broadcast=yes driver=ath9k driverversion=3.19.0-42-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
   resources: irq:19 memory:c0400000-c047ffff memory:c0480000-c048ffff

输出如下lsmod

Module                  Size  Used by
uas                    24576  1 
usb_storage            69632  1 uas
thinkpad_acpi          86016  0 
nvram                  16384  1 thinkpad_acpi
msr                    16384  0 
bnep                   20480  2 
rfcomm                 69632  8 
rtsx_usb_ms            20480  0 
memstick               20480  1 rtsx_usb_ms
uvcvideo               90112  0 
videobuf2_vmalloc      16384  1 uvcvideo
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
ath3k                  20480  0 
btusb                  40960  0 
bluetooth             491520  23 bnep,ath3k,btusb,rfcomm
intel_rapl             20480  0 
iosf_mbi               16384  1 intel_rapl
x86_pkg_temp_thermal    16384  0 
intel_powerclamp       20480  0 
coretemp               16384  0 
kvm                   479232  0 
crct10dif_pclmul       16384  0 
crc32_pclmul           16384  0 
snd_hda_codec_hdmi     53248  1 
aesni_intel           172032  1 
aes_x86_64             20480  1 aesni_intel
lrw                    16384  1 aesni_intel
gf128mul               16384  1 lrw
glue_helper            16384  1 aesni_intel
ablk_helper            16384  1 aesni_intel
arc4                   16384  2 
cryptd                 20480  2 aesni_intel,ablk_helper
ath9k                 147456  0 
ath9k_common           32768  1 ath9k
ath9k_hw              458752  2 ath9k_common,ath9k
snd_soc_rt5640         94208  0 
snd_soc_rl6231         16384  1 snd_soc_rt5640
joydev                 20480  0 
ath                    32768  3 ath9k_common,ath9k,ath9k_hw
snd_soc_core          196608  1 snd_soc_rt5640
serio_raw              16384  0 
snd_compress           20480  1 snd_soc_core
snd_pcm_dmaengine      16384  1 snd_soc_core
mac80211              708608  1 ath9k
snd_seq_midi           16384  0 
snd_seq_midi_event     16384  1 snd_seq_midi
lpc_ich                24576  0 
snd_rawmidi            32768  1 snd_seq_midi
snd_hda_codec_conexant    24576  1 
snd_hda_codec_generic    69632  1 snd_hda_codec_conexant
i915                 1048576  5 
snd_seq                65536  2 snd_seq_midi_event,snd_seq_midi
cfg80211              524288  4 ath,ath9k_common,ath9k,mac80211
snd_hda_intel          36864  6 snd_hda_codec_hdmi
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
shpchp                 40960  0 
snd_hwdep              20480  1 snd_hda_codec
drm_kms_helper        126976  1 i915
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_pcm               106496  7  snd_soc_rt5640,snd_soc_core,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller,snd_pcm_dmaengine
mei_me                 20480  0 
drm                   344064  6 i915,drm_kms_helper
mei                    90112  1 mei_me
snd_timer              32768  2 snd_pcm,snd_seq
snd                    86016  24   snd_soc_core,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,thinkpad_acpi,snd_seq_device,snd_compress
i2c_algo_bit           16384  1 i915
soundcore              16384  2 snd,snd_hda_codec
ideapad_laptop         24576  0 
sparse_keymap          16384  1 ideapad_laptop
8250_fintek            16384  0 
video                  20480  1 i915
i2c_hid                20480  0 
dw_dmac                16384  0 
dw_dmac_core           24576  1 dw_dmac
snd_soc_sst_acpi       16384  0 
i2c_designware_platform    16384  0 
i2c_designware_core    16384  1 i2c_designware_platform
8250_dw                16384  0 
spi_pxa2xx_platform    24576  0 
soc_button_array       16384  0 
mac_hid                16384  0 
parport_pc             32768  0 
ppdev                  20480  0 
lp                     20480  0 
parport                45056  3 lp,ppdev,parport_pc
rtsx_usb_sdmmc         28672  0 
rtsx_usb               24576  2 rtsx_usb_sdmmc,rtsx_usb_ms
hid_generic            16384  0 
usbhid                 53248  0 
hid                   110592  3 i2c_hid,hid_generic,usbhid
psmouse               114688  0 
ahci                   36864  2 
r8169                  81920  0 
libahci                32768  1 ahci
mii                    16384  1 r8169
sdhci_acpi             16384  0 
sdhci                  45056  1 sdhci_acpi

请就此事提供帮助。

答案1

重新安装驱动程序,我希望上述问题取决于 OEM 驱动程序问题。

同样的问题也发生在我的 Acer 笔记本电脑上,我发现重新安装 OEM 驱动程序后效果不好。

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