Ubuntu 11.10 上的无线低灵敏度 hp pavilion dm1

Ubuntu 11.10 上的无线低灵敏度 hp pavilion dm1

我最近买了一台安装了 Ubuntu 11.10 的 hp pavilion dm1。当我靠近路由器时,它可以检测到我的个人无线网络,但是当我在另一个房间时,它就无法检测到(除非我之前连接过),更不用说在我的大学了。有什么想法吗?

输出sudo lshw -c network

  *-network               
       description: Wireless interface
       product: BCM4313 802.11b/g/n Wireless LAN Controller
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 01
       serial: 60:d8:19:74:73:6b
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=brcmsmac driverversion=3.0.0-13-generic-pae firmware=N/A ip=192.168.50.100 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:16 memory:f0200000-f0203fff
  *-network
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: eth0
       version: 06
       serial: 10:1f:74:b7:42:d7
       size: 10Mbit/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=half firmware=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:41 ioport:2000(size=256) memory:f0104000-f0104fff memory:f0100000-f0103fff

输出iwconfig wlan0

wlan0     IEEE 802.11bgn  ESSID:"my_wireless"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:16:0A:0F:8A:46   
          Bit Rate=11 Mb/s   Tx-Power=19 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=47/70  Signal level=-63 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:10  Invalid misc:82   Missed beacon:0

答案1

同一张卡也遇到了同样的问题BCM4313. 您没有使用正确的驱动程序(韓國),正确的驱动程序是

安装专有的一个来自 Broadcom。

然后将/etc/modprob.d/黑名单.conf

blacklist bcm43xx  
blacklist brcmsmac  
blacklist bcma   
blacklist b43    
blacklist ssb

重新启动并检查:

lspci -k | grep  wl

希望它对你有用,就像对我一样(信号非常强)。

答案2

将 contrib 和 non-free 添加到你的 source.list

/etc/apt/sources.list

德布http://http.debian.net/debian/wheezy 主要贡献 非自由

以 root 身份运行以下命令:

apt-get 更新

apt-get 安装 linux-headers-$(uname -r|sed 's,[^-]-[^-]-,,') broadcom-sta-dkms

modprobe -r b44 b43 b43legacy ssb brcmsmac

修改探针 wl

并配置你的 wifi

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