RTL8822BE 无线网卡在 Ubuntu 19.04 中无法开启

RTL8822BE 无线网卡在 Ubuntu 19.04 中无法开启

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

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