BCM4313 吞噬了所有的 wifi

BCM4313 吞噬了所有的 wifi

我有一个类似的问题:在 ubuntu 上使用互联网时,其他所有计算机的互联网连接都不佳

所以问题是,每当我登录 Ubuntu 互联网时,所有其他计算机的互联网速度都会大幅下降。我们的下载速度为 20 Mbps,上传速度为 2 Mbps。但是,当我登录 Ubuntu 时,我仍然可以在这台计算机上获得这个速度,但所有其他计算机的上传速度都下降到大约 0.2 Mbps。

当我在同一台计算机上登录 Windows 时,互联网在所有其他计算机上都正常工作。我尝试了该帖子中提到的修复方法,即我尝试了“sudo iw reg 设置美国“徒劳无功。

操作系统:13.04 网卡:

  *-network               
       description: Wireless interface
       product: BCM4313 802.11b/g/n Wireless LAN Controller
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:12:00.0
       logical name: eth1
       version: 01
       serial: c0:cb:38:0f:b4:50
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=wl0 driverversion=6.20.155.1 (r326264) ip=204.140.128.251 latency=0 multicast=yes wireless=IEEE 802.11abg
       resources: irq:17 memory:fbd00000-fbd03fff

ifconfig:

eth0      Link encap:Ethernet  HWaddr f0:4d:a2:94:2a:8a  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

eth1      Link encap:Ethernet  HWaddr c0:cb:38:0f:b4:50  
          inet addr:204.140.128.251  Bcast:204.140.131.255  Mask:255.255.252.0
          inet6 addr: fe80::c2cb:38ff:fe0f:b450/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6229 errors:1 dropped:0 overruns:0 frame:15408
          TX packets:5608 errors:11 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:5849916 (5.8 MB)  TX bytes:1117895 (1.1 MB)
          Interrupt:17 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:842 errors:0 dropped:0 overruns:0 frame:0
          TX packets:842 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:118319 (118.3 KB)  TX bytes:118319 (118.3 KB)

dmesg 输出粘贴在此处:http://paste.ubuntu.com/5987128/。我注意到的一件事是,在我做了iw reg 设置美国它将以下内容附加到 dmesg 输出:

[  805.955556] cfg80211: Calling CRDA for country: US
[  805.963964] cfg80211: Regulatory domain changed to country: US
[  805.963973] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[  805.963980] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[  805.963987] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[  805.963993] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  805.963999] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  805.964005] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  805.964010] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)

每次重启后都会自动删除。任何建议或调试帮助都将不胜感激!谢谢!

答案1

如果问题没有得到解决,那么解决方案如下:

sudo apt-get install iw
sudo iw reg set US

就像 Braiam 所说的那样,卸载“wl”内核模块并加载 brcmsmac:

sudo modprobe -r wl && sudo modprobe brcmsmac

谢谢 Braiam

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