我买了一台华硕 Vivobook Pro，我相信它配备了联发科 MT7921 网络适配器。
目前，安装 Ubuntu 18.04 后，无法找到 wifi 适配器，并且屏幕亮度控制不起作用。
我尝试过其他用户推荐的升级 Linux 内核的解决方案。但是，当我尝试将其升级到任何过高的版本（例如 5.17）时，我会遇到 libssl 依赖性问题，并且标头未安装。如果我尝试下载稍旧但据称已修复我的驱动程序的版本（例如 5.12.5），我会收到 libc6 依赖性错误，并且标头未安装。如果我尝试忽略它并重新启动，系统会卡在启动屏幕上，而不会呈现 GUI。
有没有办法让我安装必要的驱动程序以恢复 Wi-Fi 和亮度控制？或者最坏的情况下只有亮度控制。
此外，我无法升级到高于 ubuntu 18.04 的版本，因为我在大学使用的工具需要 Ubuntu 18。
如果需要任何其他信息来解决此问题，请告诉我。
$ uname -r
5.4.0-131-generic
$ lspci -nnk grep 0280 -A3
lspci: No such PCI access method: 3 (see `-A help' for a list)
$ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1630
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 1631
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1632
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1632
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1634
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1634
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1632
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1635
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1635
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 51)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166a
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166b
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166c
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166d
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166e
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166f
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1670
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1671
01:00.0 Network controller: MEDIATEK Corp. Device 7961
02:00.0 Non-Volatile memory controller: Sandisk Corp Device 5009 (rev 01)
03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 1638 (rev c5)
03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 1637
03:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 15df
03:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 1639
03:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 1639
03:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Device 15e2 (rev 01)
03:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Device 15e3
04:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 81)
04:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 81)