过去几天我一直在尝试在我的新 ubuntu 盒子上设置 GSM 连接。但是，我似乎无法让网络管理器正确管理它。盒子是compulab fitlet2，手机卡是simcom 7100A。
$ nmcli d
DEVICE TYPE STATE CONNECTION
enp2s0 ethernet connected enp2s0
enp3s0 ethernet connected Wired connection 1
tap0 tun connected tap0
wlp1s0 wifi connected MSI WiFi 2.4Ghz
cdc-wdm1 gsm unavailable --
lo loopback unmanaged --
$ lshw
*-usb:1
description: Generic USB device
product: SimTech, Incorporated
vendor: SimTech, Incorporated
physical id: 2
bus info: usb@1:8.2
version: 2.32
serial: 0123456789ABCDEF
capabilities: usb-2.00
configuration: driver=qmi_wwan maxpower=500mA speed=480Mbit/s
$ lspci
00:00.0 Host bridge: Intel Corporation Device 5af0 …