作为一个 Linux 新手，我花了一段时间才把所有东西都设置成我想要的样子，当然不是所有东西。我试图安装一个新的 NVIDIA 驱动程序，但它不允许我这样做。我收到了这条消息。我四处搜索，发现有几个人遇到了同样的问题，但他们的解决方案都对我没用。我尝试用 Synaptic 和终端修复软件包，但什么也没用。
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-418 : Depends: libnvidia-gl-418 (= 418.56-0ubuntu0~gpu18.04.1) but it is not going to be installed
Depends: libnvidia-decode-418 (= 418.56-0ubuntu0~gpu18.04.1) but it is not going to be installed
Depends: libnvidia-encode-418 (= 418.56-0ubuntu0~gpu18.04.1) but it is not going to be installed
Depends: nvidia-utils-418 (= 418.56-0ubuntu0~gpu18.04.1) but it is not going to be installed
Depends: xserver-xorg-video-nvidia-418 (= 418.56-0ubuntu0~gpu18.04.1) but it is not going to be installed
Depends: libnvidia-cfg1-418 (= 418.56-0ubuntu0~gpu18.04.1) but it is not going to be installed
Depends: libnvidia-ifr1-418 (= 418.56-0ubuntu0~gpu18.04.1) but it is not going to be installed
Recommends: libnvidia-decode-418:i386 (= 418.56-0ubuntu0~gpu18.04.1)
Recommends: libnvidia-encode-418:i386 (= 418.56-0ubuntu0~gpu18.04.1)
Recommends: libnvidia-ifr1-418:i386 (= 418.56-0ubuntu0~gpu18.04.1)
Recommends: libnvidia-fbc1-418:i386 (= 418.56-0ubuntu0~gpu18.04.1)
Recommends: libnvidia-gl-418:i386 (= 418.56-0ubuntu0~gpu18.04.1)
E: Unable to correct problems, you have held broken packages.
如果这是一个容易解决的问题，或者我可能只是忽略了，请原谅我知识不足。我才刚学两天，我所做的一切都是在谷歌上完成的。