我已经运行 Kali Linux Rolling Edition 相当长一段时间了，我的无线卡没有任何问题。几天前，我注意到我可以在发出时看到无线接口，sudo ifconfig但我的 Broadcom BCM43142 无线卡不会检测到任何附近的热点。我决定重新启动我的机器，重新启动后我再也看不到任何无线接口，即使在sudo ifconfig。
我也尝试过sudo lspci，sudo lsusb但没有运气：
papagolf@Sierra ~ % sudo lspci
[sudo] password for papagolf:
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
08:00.0 3D controller: NVIDIA Corporation GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] (rev a1)
papagolf@Sierra ~ % sudo lsusb
Bus 001 Device 015: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 003: ID 0c45:6a04 Microdia
Bus 001 Device 014: ID 04e8:6864 Samsung Electronics Co., Ltd GT-I9070 (network tethering, USB debugging enabled)
Bus 001 Device 002: ID 8087:8000 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
我的问题是这是否意味着这是硬件故障还是可能仍然是其他问题？我该如何确认？
答案1
它将lspci扫描连接的设备，使用pciids数据库它将为您提供有关 wifi 卡的所需信息。确保通过更新数据库update-pciids，如果bcm43142未显示，则说明您的 wifi 卡有问题或未正确连接。您还可以使用rfkill list列出系统上正在工作的 wifi（蓝牙）设备。