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Ubuntu 20.04 wifi 不显示可用网络

tag-icon • tag-icon drivers 20.04 wireless network-manager
Ubuntu 20.04 wifi 不显示可用网络

今天早上我的笔记本电脑突然没有 wifi 了。我的是 Thinkpad E14。

我不知道是什么原因造成的。wifi 可以工作，我可以打开和关闭它，但它会搜索可用网络，但找不到任何。我关闭又打开了 wifi，sudo nmcli networking off && sudo nmcli networking on但是sudo service network-manager——不起作用。

内核：5.13.0-39-generic

当我去时，Software and Updates > Additional Software我得到“没有可用的其他驱动程序”。

我也进行了更新和升级，重新启动，但问题仍然存在。

lspci给出03:00.0 Network controller: MEDIATEK Corp. Device 7961

更多信息：

$ lshw -C network
WARNING: you should run this program as super-user.
  *-network                 
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: enp2s0
       version: 10
       serial: 88:a4:c2:b2:ce:85
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.13.0-39-generic duplex=full firmware=rtl8168g-3_0.0.1 04/23/13 ip=192.168.1.186 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:39 ioport:2000(size=256) memory:fd404000-fd404fff memory:fd400000-fd403fff
  *-network
       description: Wireless interface
       product: MEDIATEK Corp.
       vendor: MEDIATEK Corp.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlp3s0
       version: 00
       serial: 10:6f:d9:df:16:3d
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=mt7921e driverversion=5.13.0-39-generic firmware=____010000-20220209150915 latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: iomemory:60-5f iomemory:60-5f iomemory:60-5f irq:74 memory:670200000-6702fffff memory:670300000-670303fff memory:670304000-670304fff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

网上的修复都无济于事。

也许更新破坏了它？也许内核有问题？也许我应该重新安装它？

编辑

运行了 WinEunuuchs2Unix 评论中的 WIFI 诊断脚本：https://pastebin.com/5kALkQi5

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