PPA 中的 nvidia 驱动程序依赖于 xserver-xorg-core 可以吗？

Question

$ sudo apt install nvidia-driver-410

Reading package lists... Done
Building dependency tree       
Reading state information... Done
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-410 : Depends: xserver-xorg-video-nvidia-410 (= 410.78-0ubuntu1~gpu18.04.1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

递归地挖掘依赖的包（对我来说从 xserver-xorg-video-nvidia-xxx 开始），最终以 xserver-xorg-core 结束。但我觉得根本不需要该组的任何软件包。

这是全新的 Ubuntu 18.04 LTS 安装，除了添加图形驱动程序 PPA 之外，没有对系统进行任何操作。apt install -f, apt install --fix-broken,都没有dpkg --get-selections | grep hold发现任何错误

Answer 1

没关系。

xserver-xorg-core是渲染桌面的服务。
xserver-xorg-video-nvidia-410将为您的 X Server 提供优化的硬件加速。

如果您查看 Ubuntu 18.04.2 的默认软件包，X Server 已预装在 Ubuntu 下。