我是 Ubutnu 新手，最近安装了 Ubuntu 20.04.1 LTS。每次打开笔记本电脑时，wifi 都可以使用。但几分钟后，wifi 断开连接，我不得不重新启动笔记本电脑。有什么解决办法吗？uname -r 注释显示“5.15.0-56-generic”谢谢
我运行该命令sudo apt-get install -y linux-firmware，输出如下。
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following package was automatically installed and is no longer required:
systemd-hwe-hwdb
Use 'sudo apt autoremove' to remove it.
The following packages will be upgraded:
linux-firmware
1 upgraded, 0 newly installed, 0 to remove and 143 not upgraded.
Need to get 240 MB of archives.
After this operation, 72.7 kB of additional disk space will be used.
Get:1 http://nz.archive.ubuntu.com/ubuntu jammy-updates/main amd64 linux-firmware all 20220329.git681281e4-0ubuntu3.9 [240 MB]
Fetched 240 MB in 32s (7,497 kB/s)
(Reading database ... 195613 files and directories currently installed.)
Preparing to unpack .../linux-firmware_20220329.git681281e4-0ubuntu3.9_all.deb ...
Unpacking linux-firmware (20220329.git681281e4-0ubuntu3.9) over (20220329.git681281e4-0ubuntu3.7) ...
Setting up linux-firmware (20220329.git681281e4-0ubuntu3.9) ...
update-initramfs: Generating /boot/initrd.img-5.15.0-56-generic
update-initramfs: Generating /boot/initrd.img-5.15.0-43-generic
未解决