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升级到 Ubuntu 14.04 没有无线

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升级到 Ubuntu 14.04 没有无线

我刚刚升级，然后无线连接就断了。以下是一些可能有用的基本信息：

  • Dell Inspiron i3-3217U 双核 CPU @ 1.8GHz 64 位
  • 芯片ID：BCM43143
  • PCI-ID：14e4：4365
  • 正在使用的内核驱动程序：bcma-pci-bridge

该命令的结果如下sudo lshw -C network：

  *-network               
       description: Ethernet interface
       product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: eth0
       version: 05
       serial: 34:17:eb:54:39:dd
       size: 10Mbit/s
       capacity: 100Mbit/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 autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:41 ioport:2000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
  *-network
       description: Network controller
       product: BCM43142 802.11b/g/n
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=bcma-pci-bridge latency=0
       resources: irq:17 memory:c0500000-c0507fff
  *-network               
       description: Ethernet interface
       product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: eth0
       version: 05
       serial: 34:17:eb:54:39:dd
       size: 10Mbit/s
       capacity: 100Mbit/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 autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:41 ioport:2000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
  *-network
       description: Network controller
       product: BCM43142 802.11b/g/n
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=bcma-pci-bridge latency=0
       resources: irq:17 memory:c0500000-c0507fff

以及rfkill list：

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

提前谢谢了

答案1

  • 去Software and updates
  • 确保在Additional drivers选项卡中将 WiFi 驱动程序设置为 Broadcom 驱动程序。

如果这不起作用，请发布输出sudo lshw -C network以sudo rfkill list供进一步调试。

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