我不知道问题是什么。
我执行了以下命令:
sudo lshw -C network
我发现我的 Wifi 适配器被禁用了,尽管我从未从 Windows 切换到 Ubuntu 时关闭过它
*-network DISABLED
description: Wireless interface
product: RTL8822BE 802.11a/b/g/n/ac WiFi adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:07:00.0
logical name: wlp7s0
version: 00
serial: 28:3a:4d:3b:94:c1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=r8822be driverversion=5.0.0-13-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:144 ioport:4000(size=256) memory:a4300000-a430ffff
然后
我做到了
ip link set dev wlp7s0 up
并得到了sudo lshw -C network
*-network
description: Wireless interface
product: RTL8822BE 802.11a/b/g/n/ac WiFi adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:07:00.0
logical name: wlp7s0
version: 00
serial: 28:3a:4d:3b:94:c1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=r8822be driverversion=5.0.0-13-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:144 ioport:4000(size=256) memory:a4300000-a430ffff
但当我这样做ip link sho | grep w
我得到:
4: wlp7s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
我无法从设置中打开 wifi,并且不确定如何进一步排除故障。以太网工作正常。
我有一台联想 Legion Y7000。
任何帮助都将不胜感激。我尝试重新安装 ubuntu,但没有帮助。我尝试下载驱动程序,就像以前针对 <=18.04 的解决方案一样,但这也没有帮助