经过一个周末的钻研，我成功地在 Macbook Pro 上安装并启动了 Ubuntu 14.04 LTS (x64) 以及 Mac OS X Mountain Lion。这是一个小小的胜利。
大部分情况下，一切都很顺利。不过，我注意到我的 WiFi 速度急剧下降在 Ubuntu 和 OS X 上启动时均如此. 比较同一网络上的 Windows 机器上的 0.4Mbps 和 24Mbps 的下载速度。
有人对如何解决这个问题有什么建议吗？
有关我的安装过程的一些细节：
- Mac 磁盘实用程序对我的 SSD 进行分区
- 重新查找启动管理器
- 按照 Ubuntu 的说明从 DVD 刻录机安装如何在 OS X 上刻录 DVD
编辑：我确实读过此主题关于 14.04 上的无线连接速度慢的问题；不过这里接受的答案是内核升级。由于我的问题同时发生在 OS X 端和 Ubuntu 端，我认为这些问题没有共同的原因
編輯2：
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 18)
00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 18)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB Universal Host Controller (rev 06)
00:1a.7 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06)
00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 06)
00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB Universal Host Controller (rev 06)
00:1d.7 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
00:1f.2 IDE interface: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA IDE Controller (rev 06)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GT216M [GeForce GT 330M] (rev a2)
01:00.1 Audio device: NVIDIA Corporation GT216 HDMI Audio Controller (rev a1)
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5764M Gigabit Ethernet PCIe (rev 10)
03:00.0 Network controller: Broadcom Corporation BCM43224 802.11a/b/g/n (rev 01)
04:00.0 FireWire (IEEE 1394): LSI Corporation FW643 [TrueFire] PCIe 1394b Controller (rev 08)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 05)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 05)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 05)
ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 05)
ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 05)
ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 05)
如果你能给我指明正确的方向，或者找到解决办法，谢谢