我的笔记本电脑上有 Broadcom 无线网卡，但无线网无法正常工作。在路由器前面，无线信号只有 70%，在房间的另一边几乎不起作用，在另一个房间则断开连接。我有驱动程序和所有东西。我运行的是 Ubuntu 11.10 64 位。它在 Windows 7 中运行完美。有人能帮忙吗？
00:00.0 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1705]
00:01.0 VGA compatible controller [0300]: ATI Technologies Inc Device [1002:9649]
00:01.1 Audio device [0403]: ATI Technologies Inc Device [1002:1714]
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
00:04.0 PCI bridge [0604]: Advanced Micro Devices [AMD] Device [1022:1709]
Kernel driver in use: pcieport
Kernel modules: shpchp
00:11.0 SATA controller [0106]: Advanced Micro Devices [AMD] Device [1022:7804]
Kernel driver in use: ahci
Kernel modules: ahci
00:12.0 USB Controller [0c03]: Advanced Micro Devices [AMD] Device [1022:7807] (rev 11)
Kernel driver in use: ohci_hcd
00:12.2 USB Controller [0c03]: Advanced Micro Devices [AMD] Device [1022:7808] (rev 11)
Kernel driver in use: ehci_hcd
00:13.0 USB Controller [0c03]: Advanced Micro Devices [AMD] Device [1022:7807] (rev 11)
Kernel driver in use: ohci_hcd
00:13.2 USB Controller [0c03]: Advanced Micro Devices [AMD] Device [1022:7808] (rev 11)
Kernel driver in use: ehci_hcd
00:14.0 SMBus [0c05]: Advanced Micro Devices [AMD] Device [1022:780b] (rev 13)
Kernel modules: i2c-piix4
00:14.2 Audio device [0403]: Advanced Micro Devices [AMD] Device [1022:780d] (rev 01)
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
00:14.3 ISA bridge [0601]: Advanced Micro Devices [AMD] Device [1022:780e] (rev 11)
00:14.4 PCI bridge [0604]: Advanced Micro Devices [AMD] Device [1022:780f] (rev 40)
00:15.0 PCI bridge [0604]: Advanced Micro Devices [AMD] Device [1022:43a0]
Kernel driver in use: pcieport
Kernel modules: shpchp
00:15.1 PCI bridge [0604]: Advanced Micro Devices [AMD] Device [1022:43a1]
Kernel driver in use: pcieport
Kernel modules: shpchp
00:15.2 PCI bridge [0604]: Advanced Micro Devices [AMD] Device [1022:43a2]
Kernel driver in use: pcieport
Kernel modules: shpchp
00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1700] (rev 43)
00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1701]
00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1702]
00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1703]
00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1704]
00:18.5 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1718]
00:18.6 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1716]
00:18.7 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1719]
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
Kernel driver in use: r8169
Kernel modules: r8169
07:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:4727] (rev 01)
Kernel driver in use: wl
Kernel modules: wl
08:00.0 Class [ff00]: Realtek Semiconductor Co., Ltd. Device [10ec:5209] (rev 01)
答案1
我那个时代的 HP 笔记本电脑有一块 R6168 无线网卡（通过 lspci 显示），但通常会加载 R6169 网络驱动程序。R6169 可以工作，但根据路由器的不同，连接会很困难，你会看到网络经常断断续续，从而降低吞吐量。如果你有 R8111 卡，你也会遇到同样的不匹配情况。
解决方案：安装Realtek 的 R6168 驱动程序。它们没有像应该的那样自动安装。