我将我的 Toshiba PORTÉGÉ 从 Precise(12.04) 更新到 Quantal (12.10)。更新到 Precise 无线设备后工作正常。但更新无线设备后，网络管理器未检测到。
该lspci命令说：
02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN
Controller [14e4:4727] (rev 01)
Subsystem: Askey Computer Corp. Device [144f:7175]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 3
Region 0: Memory at d4500000 (64-bit, non-prefetchable) [size=16K] …