背景：我购买了 Cyberpunk 2077，根据一些文章（这里， 和这里) -mesa-va-drivers需要20.1+。
我找到了mesa-va-drivers 这里，并按照 Howto 进行设置。运行后sudo apt update，它显示有可用更新，如下所示：
Listing... Done
mesa-va-drivers/focal-proposed 20.2.1-1~ubuntu0.20.04.2 amd64 [upgradable from: 20.0.8-0ubuntu1~20.04.1]
mesa-va-drivers/focal-proposed 20.2.1-1~ubuntu0.20.04.2 i386 [upgradable from: 20.0.8-0ubuntu1~20.04.1]
尝试升级后，我收到以下消息：
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:
mesa-va-drivers : Depends: libllvm11 (>= 1:9~svn298832-1~) but it is not installable
Breaks: mesa-va-drivers:i386 (!= 20.2.1-1~ubuntu0.20.04.2) but 20.0.8-0ubuntu1~20.04.1 is to be installed
mesa-va-drivers:i386 : Breaks: mesa-va-drivers (!= 20.0.8-0ubuntu1~20.04.1) but 20.2.1-1~ubuntu0.20.04.2 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
uname -a如果相关的话，我正在使用 AMD GPU (RX 580)。以下是(省略主机名)的输出：
Linux 5.4.0-56-generic #62-Ubuntu SMP Mon Nov 23 19:20:19 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux