Wifi接口似乎会使自己瘫痪吗？

Question

当我今天启动我的笔记本电脑时，Wifi突然失灵了，我在过去的两个小时里一直在努力使它再次工作。我想我解决了一两个问题，但我并没有真正记录任何东西。我现在无法解决的问题是:我的Wifi接口似乎被禁用了，而我不能(总是？)启用它。但是即使当我能够启用它时，Wifi仍然不起作用。

这是我的lshw -C network输出：

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@0000:01:00.0
       logical name: enp1s0
       version: 0c
       serial: 30:65:ec:78:53:5c
       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 firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no multicast=yes port=MII
       resources: irq:18 ioport:3000(size=256) memory:c1200000-c1200fff memory:c1000000-c1003fff
  *-network DISABLED
       description: Wireless interface
       product: Wireless 7265
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 48
       serial: 5c:e0:c5:03:6c:ea
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=5.4.0-88-generic firmware=17.3216344376.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:48 memory:c1100000-c1101fff
  *-network
       description: Ethernet interface
       physical id: 1
       bus info: usb@1:1.2
       logical name: usb0
       serial: ce:4f:d0:53:fc:10
       capabilities: ethernet physical
       configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.231.76 link=yes multicast=yes
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

sudo rfkill list的输出：

0: acer-wireless: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
5: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

sudo systemctl status wpa_supplicant.service的输出：

● wpa_supplicant.service - WPA supplicant
     Loaded: loaded (/lib/systemd/system/wpa_supplicant.service; enabled; vendor preset: enabled)
     Active: active (running) since Sat 2021-10-02 15:42:54 CEST; 5h 5min ago
   Main PID: 1242 (wpa_supplicant)
      Tasks: 1 (limit: 9378)
     Memory: 3.3M
     CGroup: /system.slice/wpa_supplicant.service
             └─1242 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant

Okt 02 15:42:54 Lithographie systemd[1]: Starting WPA supplicant...
Okt 02 15:42:54 Lithographie wpa_supplicant[1242]: Successfully initialized wpa_supplicant
Okt 02 15:42:54 Lithographie systemd[1]: Started WPA supplicant.

第一个是我不使用的以太网连接。第二个是我今天奇迹般地停止工作的无线连接。第三个是我的解决办法，通过我的手机连接。

modprobe -r iwlwifi和modprobe iwlwifi起初不起作用，现在起作用了，但它并没有真正改变任何事情，当我尝试sudo ip link set wlp2s0 up时，有时它会将接口切换到enabled (有时不起作用)，但是Wifi仍然不能工作。

我正在运行Ubuntu20.04LTS上的宏碁旅行伙伴P236-M-57R4。谢谢你提前帮忙！

编辑:不知道是否有任何连接，但我昨天遇到了一些问题，我的决定非常不明智的chown -r我的/usr/-文件夹与我的主要帐户。我想我解决了这些问题，但也许我没有？

Answer 1

我想，chown命令是问题所在。使用sudo apt-get purge wpasupplicant获得它，用sudo apt-get install wpasupplicant和sudo apt-get install network-manager重新安装(从缓存安装)。