如题。 以前一直是用 gnome 环境的，装了 raspbian 后感觉 lxde 实在太简陋，于是就换了 gnome 。 其他问题没有，但是gnome 自带的 WiFi 组件却搜索不到网络，gnome 自带的应用商店之类也提示无网络，奇怪的是其他应用都可以正常联网（大概是我以前在 lxde 设定的网络没有被完全删除？）

之后，我用 apt 清掉了 iwd,raspberrypi-net-mods 之类的看起来好像是管联网的程序，也尝试重装了 wpasupplicant 和 networkmanager，问题依旧。

NetworkManager 启动报错：

● NetworkManager.service - Network Manager    Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)    Active: active (running) since Sun 2020-11-22 10:13:11 CST; 32min ago      Docs: man:NetworkManager(8)  Main PID: 375 (NetworkManager)     Tasks: 3 (limit: 3738)    CGroup: /system.slice/NetworkManager.service            └─375 /usr/sbin/NetworkManager --no-daemon  11 月 22 10:14:02 myrpi NetworkManager[375]: <warn>  [1606011242.2301] device (wlan0): re-acquiring supplicant interface (#3). 11 月 22 10:14:02 myrpi NetworkManager[375]: <error> [1606011242.5406] sup-iface[0x1fcd660,wlan0]: error adding interface: wpa_supplicant couldn't grab this inte 11 月 22 10:14:02 myrpi NetworkManager[375]: <info>  [1606011242.5407] device (wlan0): supplicant interface state: starting -> down 11 月 22 10:14:13 myrpi NetworkManager[375]: <warn>  [1606011253.2331] device (wlan0): re-acquiring supplicant interface (#4). 11 月 22 10:14:13 myrpi NetworkManager[375]: <error> [1606011253.5203] sup-iface[0x1fcd660,wlan0]: error adding interface: wpa_supplicant couldn't grab this inte 11 月 22 10:14:13 myrpi NetworkManager[375]: <info>  [1606011253.5204] device (wlan0): supplicant interface state: starting -> down 11 月 22 10:14:24 myrpi NetworkManager[375]: <warn>  [1606011264.2321] device (wlan0): re-acquiring supplicant interface (#5). 11 月 22 10:14:24 myrpi NetworkManager[375]: <error> [1606011264.5007] sup-iface[0x1fcd5f0,wlan0]: error adding interface: wpa_supplicant couldn't grab this inte 11 月 22 10:14:24 myrpi NetworkManager[375]: <info>  [1606011264.5008] device (wlan0): supplicant interface state: starting -> down 11 月 22 10:14:24 myrpi NetworkManager[375]: <info>  [1606011264.5009] device (wlan0): supplicant interface keeps failing, giving up  

感觉还是因为有程序先占用了 wifi 模块，和 networkmanager 冲突了 求 v2 大神们支支招，感激不尽