所以我试图为我的笔记本电脑（它有 GeForce 940MX）安装 nvidia 驱动程序，但没有运气。
我正在尝试通过键入以下内容来安装它们：
sudo ubuntu-drivers autoinstall
不幸的是，这失败了，并给出了以下输出：
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
nvidia-driver-396 : Depends: nvidia-dkms-396 (= 396.54-0ubuntu0~gpu18.04.1) but it is not going to be installed
Depends: nvidia-utils-396 …