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Ubuntu 18.04 上未检测到联想 Legion Y530 无线网卡

tag-icon • tag-icon networking 18.04 wireless network-manager realtek
Ubuntu 18.04 上未检测到联想 Legion Y530 无线网卡

正如标题所说，我的问题是无法检测到 wifi 卡，我不知道如何解决这个问题。以下是输出lspci -knn | grep Net -A3; rfkill list

07:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter [10ec:b822] (rev ff)
    Kernel modules: rtw_8822be
08:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
    Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:38b4]
0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: yes
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: yes
    Hard blocked: no

编辑：我忘了说了，wifi 卡工作正常，但突然它检测不到任何网络，然后我尝试重新启动网络管理器sudo service network-manager restart，但还是检测不到适配器。

编辑2：禁用安全启动并按照此操作后指导输出lspci -knn | grep Net -A3; rfkill list保持不变：

07:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter [10ec:b822] (rev ff)
    Kernel modules: rtw_8822be
08:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
    Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:38b4]
0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: yes
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: yes
    Hard blocked: no

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