连接有线网络时无法连接到检测到的无线网络

连接有线网络时无法连接到检测到的无线网络

我正在使用一台装有 Windows 和 Ubuntu 10.10 的双启动电脑。Ubuntu 已经进行了全新安装,现在无线连接显示为可用,但当我连接时,无法连接到互联网。当我在 Ubuntu 中使用有线连接时,我可以访问互联网并且它可以正常工作。当我使用 Windows 时,无线连接工作正常,因此我没有看到无线路由器的问题,而且我的装有 Ubuntu 的笔记本电脑也可以连接到它。我只是暂时使用有线连接,否则我会使用无线连接。一些输出可能有助于参考。

lspci   
 o/p:

00:00.0 Host bridge: Silicon Integrated Systems [SiS] 671MX
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS AGP Port (virtual PCI-to-PCI bridge)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS968 [MuTIOL Media IO] (rev  01)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 01)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:05.0 IDE interface: Silicon Integrated Systems [SiS] SATA Controller / IDE mode (rev 03)
00:06.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge
00:07.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge
00:0d.0 Communication controller: Conexant Systems, Inc. HSF 56k Data/Fax Modem
00:0f.0 Audio device: Silicon Integrated Systems [SiS] Azalia Audio Controller
00:1f.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 771/671 PCIE VGA   Display Adapter (rev 10)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 01)

 lshw -c network
 o/p:

 *-network               
   description: Ethernet interface
   product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:03:00.0
   logical name: eth0
   version: 01
   serial: 00:1d:7d:56:84:51
   size: 100MB/s
   capacity: 100MB/s
   width: 64 bits
   clock: 33MHz
   capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
   configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full ip=192.168.1.7 latency=0 link=yes multicast=yes port=MII speed=100MB/s
        resources: irq:43 ioport:ec00(size=256) memory:febff000-febfffff memory:febc0000-febdffff
    *-network
        description: Wireless interface
        physical id: 1
        bus info: usb@1:4
        logical name: wlan0
        serial: 00:21:91:1d:f7:5c
        capabilities: ethernet physical wireless
        configuration: broadcast=yes driver=rt73usb driverversion=2.6.35-22-generic       firmware=N/A link=no multicast=yes wireless=IEEE 802.11bg

    lsmod
    o/p: 

     Module                  Size  Used by
     aes_i586                7280  0 
     aes_generic            26875  1 aes_i586
     binfmt_misc             6599  1 
     snd_hda_codec_analog    59649  1 
     arc4                    1165  2 
     snd_hda_intel          22107  2 
     snd_hda_codec          87552  2 snd_hda_codec_analog,snd_hda_intel
     snd_hwdep               5040  1 snd_hda_codec
     snd_pcm                71475  2 snd_hda_intel,snd_hda_codec
     snd_seq_midi            4588  0 
     snd_rawmidi            17783  1 snd_seq_midi
     snd_seq_midi_event      6047  1 snd_seq_midi
     rt73usb                22442  0 
     crc_itu_t               1383  1 rt73usb
     rt2x00usb               9779  1 rt73usb
     snd_seq                47174  2 snd_seq_midi,snd_seq_midi_event
     rt2x00lib              27275  2 rt73usb,rt2x00usb
     led_class               2633  1 rt2x00lib
     mac80211              231541  2 rt2x00usb,rt2x00lib
     snd_timer              19067  2 snd_pcm,snd_seq
     snd_seq_device          5744  3 snd_seq_midi,snd_rawmidi,snd_seq
     ppdev                   5556  0 
     parport_pc             26058  1 
     cfg80211              144470  2 rt2x00lib,mac80211
     snd                    49006  13                     snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
     soundcore                880  1 snd
     sis_agp                 4123  1 
     snd_page_alloc          7120  2 snd_hda_intel,snd_pcm
     shpchp                 29886  0 
     agpgart                32011  1 sis_agp
     lp                      7342  0 
     parport                31492  3 ppdev,parport_pc,lp
     usbhid                 36882  0 
     hid                    67742  1 usbhid
     usb_storage            40172  0 
     r8169                  36489  0 
     sata_sis                3504  3 
     mii                     4425  1 r8169


     rfkill list wifi
     o/p:

    0: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: no

编辑:

http://www.computerandyou.net/2011/10/how-to-solve-no-wireless-network-detected-in-ubuntu-11-10/按照上述链接操作一次有效,但当我再次重新启动时,我无法连接到互联网。

答案1

当您连接到有线网络时:

打开终端(Ctrl+Alt+T)并输入以下命令来安装 Synaptic 包管理器:

sudo apt-get 安装 synaptic

  1. 现在打开 Synaptic 包管理器并在其中搜索 bcm。卸载或删除任何已存在的包(与 bcm 相关),特别是 bcmwl-kernel-source

  2. 现在安装这两个包:b43-fwcutter 和 firmware-b43-installer。

断开有线网络...重启。

来源:http://www.computerandyou.net/2011/10/how-to-solve-no-wireless-network-detected-in-ubuntu-11-10/

答案2

一旦你点击了对你有帮助的链接(它只是我博客上的另一个链接),那么为了使更改永久生效,请按照以下步骤操作:在终端中输入以下命令

cat /etc/modprobe.d/* | egrep '8180|acx|at76|ath|b43|bcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|witch|wl' 

检查术语“blacklist bcm43xx”是否存在

如果是,则输入cd /etc/modprobe.d/,然后sudo gedit blacklist.conf 在行首添加一个 #:blacklist bcm43xx然后保存文件(我在终端中收到无法保存的错误消息,但实际上保存正确)。重启

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