一开始以为是版本问题。但是从11.10升级到12.04后问题依旧。在win7下则一切正常。google之貌似都没相关信息。
现在猜测是驱动问题，不知道大家有没有遇到类似情况。
ps，我的本本是Acer4752, 网卡是Broadcom的。
代码： 全选
niko@nikoAC4752:~$ lspci -vvnn | grep 14e4
02:00.0 Network controller [0280]: Broadcom Corporation BCM43227 802.11b/g/n [14e4:4358]
03:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM57785 Gigabit Ethernet PCIe [14e4:16b5] (rev 10)
03:00.1 SD Host controller [0805]: Broadcom Corporation NetXtreme BCM57765 Memory Card Reader [14e4:16bc] (rev 10) (prog-if 01)
03:00.2 System peripheral [0880]: Broadcom Corporation Device [14e4:16be] (rev 10)
03:00.3 System peripheral [0880]: Broadcom Corporation Device [14e4:16bf] (rev 10)