我已经运行 Ubuntu 20.04 几个月了，除了这个问题之外，一切都很顺利。我以前遇到过一次，它似乎自行消失了，但这次没有。我开始遵循这指导。
更新：这个问题也出现在我的 Windows 安装中。Windows 上启用了快速启动，关闭它、关机并关闭电源后，两个安装中的问题都得到了解决。我会在评论中发布任何更新。
使用
nmcli
结果是
wlo1: disconnected
"Broadcom and subsidiaries BCM4360"
wifi (wl), 98:48:27:C5:54:D3, hw, mtu 1500
我可以清楚地看到该设备已通过命令启用
lshw -C network
得出的结果是：
description: Wireless interface
product: BCM4360 802.11ac Wireless Network Adapter
vendor: Broadcom Inc. and subsidiaries
physical id: 0
bus info: pci@0000:21:00.0
logical name: wlo1
version: 03
serial: 98:48:27:c5:54:d3
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) latency=0 multicast=yes wireless=IEEE 802.11
resources: irq:25 memory:fc400000-fc407fff memory:fc200000-fc3fffff
命令
lsmod
显示 wl 驱动程序已启用，并使用
modprobe
禁用该驱动程序确实会导致系统完全停止使用该设备（无法在 GUI 中找到 wi-fi 设置）
当我这样做的时候
sudo iwlist scan
我明白了：
lo Interface doesn't support scanning.
enp34s0 Interface doesn't support scanning.
wlo1 No scan results
usb0 Interface doesn't support scanning.
wlo1 是无线适配器。
最后，
sudo iwconfig
给了我这个：
wlo1 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=200 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
我尝试过多次更新和升级，并在此过程中多次重启。我还尝试过多次以不同的方式重新安装驱动程序，但都没有成功（我确保清理干净，尝试修复后终端输出全部都是）。现在我使用的是相同的操作系统，并使用 USB 绑定到我的手机，运行正常。
据我所知，Ubuntu 认为一切运行正常。
好的，这就是dkms status节目：
bcmwl, 6.30.223.271+bdcom, 5.13.0-40-generic, x86_64: installed
nvidia, 510.60.02, 5.13.0-39-generic, x86_64: installed
nvidia, 510.60.02, 5.13.0-40-generic, x86_64: installed
正在播放的dpkg -l *broadcom*节目：
dpkg-query: no packages found matching *broadcom*
和dpkg -l *bcm*：
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-===================-===================================-============-================================================
ii bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu7~20.04.3 amd64 Broadcom 802.11 Linux STA wireless driver source
un bcmwl-modaliases <none> <none> (no description available)
un libcmis-0.5-5 <none> <none> (no description available)
ii libcmis-0.5-5v5 0.5.2-1ubuntu1 amd64 CMIS protocol client library
sudo ubuntu-drivers list输出：
WARNING:root:_pkg_get_support nvidia-driver-510-server: package has invalid Support PBheader, cannot determine support level
WARNING:root:_pkg_get_support nvidia-driver-510: package has invalid Support PBheader, cannot determine support level
nvidia-driver-470-server, (kernel modules provided by linux-modules-nvidia-470-server-generic-hwe-20.04)
nvidia-driver-510-server, (kernel modules provided by linux-modules-nvidia-510-server-generic-hwe-20.04)
nvidia-driver-470, (kernel modules provided by linux-modules-nvidia-470-generic-hwe-20.04)
nvidia-driver-510, (kernel modules provided by linux-modules-nvidia-510-generic-hwe-20.04)
bcmwl-kernel-source
rkill输出：
ID TYPE DEVICE SOFT HARD
2 wlan phy0 unblocked unblocked
3 wlan brcmwl-0 unblocked unblocked
sudo dmesg | grep -i wlo输出：
[ 5.575425] wl 0000:21:00.0 wlo1: renamed from wlan0
[ 1707.631921] wlo1 Scan_results error (-22)
[ 2965.838613] wl 0000:21:00.0 wlo1: renamed from wlan0
sudo dmesg | grep -i networkmanager根本没有任何输出。
iwlist freq输出：
lo no frequency information.
enp34s0 no frequency information.
wlo1 32 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Channel 14 : 2.484 GHz
Channel 32 : 5.16 GHz
Channel 34 : 5.17 GHz
Channel 36 : 5.18 GHz
Channel 38 : 5.19 GHz
Channel 40 : 5.2 GHz
Channel 42 : 5.21 GHz
Channel 44 : 5.22 GHz
Channel 46 : 5.23 GHz
Channel 48 : 5.24 GHz
Channel 50 : 5.25 GHz
Channel 52 : 5.26 GHz
Channel 54 : 5.27 GHz
Channel 56 : 5.28 GHz
Channel 58 : 5.29 GHz
Channel 60 : 5.3 GHz
Channel 62 : 5.31 GHz
Channel 64 : 5.32 GHz
Channel 66 : 5.33 GHz
usb0 no frequency information.
我所在的地方通常有大约 10 个可用网络。我通常使用其中一个。
sudo iwlist wlo1 scan | grep -i ssid输出：
wlo1 Interface doesn't support scanning : Device or resource busy
我将重新启动并发布不同的输出（如果有）