![使用 4.15.0-91 内核 32 位的戴尔 Latitude E6500 wifi 无法工作。使用 -88 可以](https://linux22.com/image/1171143/%E4%BD%BF%E7%94%A8%204.15.0-91%20%E5%86%85%E6%A0%B8%2032%20%E4%BD%8D%E7%9A%84%E6%88%B4%E5%B0%94%20Latitude%20E6500%20wifi%20%E6%97%A0%E6%B3%95%E5%B7%A5%E4%BD%9C%E3%80%82%E4%BD%BF%E7%94%A8%20-88%20%E5%8F%AF%E4%BB%A5.png)
使用 Kubuntu 18.04,我在戴尔 Latitude E6500 上安装了最新更改的 4.15.0-91 内核 32 位,但 WiFi 失败。使用较旧的内核 4.15.0-88 可以正常工作。这款戴尔机型右侧有一个额外的按钮,用于启用和禁用 WiFi。
Kubuntu 18.04 额外驱动产品:BCM4322 802.11a/b/g/n 无线局域网控制器
lshw:91 内核错误
*-network
description: Ethernet interface
product: 82567LM Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 03
serial: 00:24:e8:e8:e5:35
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=1.7-7 latency=0 link=no multicast=yes port=twisted pair
resources: irq:24 memory:f6ae0000-f6afffff memory:f6adb000-f6adbfff ioport:efe0(size=32)
*-USB:0
*-network UNCLAIMED
description: Network controller
product: BCM4322 802.11a/b/g/n Wireless LAN Controller
vendor: Broadcom Inc. and subsidiaries
physical id: 0
bus info: pci@0000:0c:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:f69fc000-f69fffff
*-pci:2
description: PCI bridge
product: 82801I (ICH9 Family) PCI Express Port 3
vendor: Intel Corporation
physical id: 1c.2
bus info: pci@0000:00:1c.2
88内核正在工作:
*-network
description: Ethernet interface
product: 82567LM Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 03
serial: 00:24:e8:e8:e5:35
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=1.7-7 latency=0 link=no multicast=yes port=twisted pair
resources: irq:24 memory:f6ae0000-f6afffff memory:f6adb000-f6adbfff ioport:efe0(size=32)
*-USB:0
*-network
description: Wireless interface
product: BCM4322 802.11a/b/g/n Wireless LAN Controller
vendor: Broadcom Inc. and subsidiaries
physical id: 0
bus info: pci@0000:0c:00.0
logical name: wlan0
version: 01
serial: 90:4c:e5:3f:34:cc
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) ip=192.168.1.101 latency=0 multicast=yes wireless=IEEE 802.11
resources: irq:17 memory:f69fc000-f69fffff
*-pci:2
description: PCI bridge
product: 82801I (ICH9 Family) PCI Express Port 3
vendor: Intel Corporation