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Manjaro OS
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this post was submitted on 05 Dec 2023
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That's not a stupid design at all. A nvidia kernel module artifact is only compatible with exactly one kernel ABI. Thus you need one binary nvidia package for each kernel you ship.
Arch also has one package for every kernel ABI they ship:
nvidiaandnvidia-lts.Though it should be noted that their design assumes that these two ABIs are the only possible ABIs which isn't strictly the case as the zen, hardened or RT variants may sometimes lag behind their regular counterpart. That's a stupid design if anything as it increases the friction of kernel ABI upgrades as a kernel package maintainer.
We at NixOS also ship the nvidia module for each of our ~50 kernel variants; all major versions of the Nvidia module compatible with that kernel in fact.
The only possible way to access these nvidia kernel modules is via a certain kernel's
linuxPackagesattribute set that contains all packages that rely on a kernel ABI such as kernel modules or packages likeperf. That's good design if you ask me but I'm obviously biased ;)I know you need a new nvidia driver every time the kernel updates, but why keep 50 kernel versions? My beef was them offering so many (outdated) versions instead of keeping the latest one which would make things very simple for users (imo).
These aren't all versions per se but mostly variants, versions and versions of variants. For example, we have packaged the xanmod kernel which is a modified kernel optimised for desktop use but it has two variants: Main and LTS. We have packaged both.
Here are the names of all of our kernels currently to give you an idea (as a JSON list):
(Note that some of these are aliases;
linuxPackages_latestis currentlylinuxPackages_6_6for example.)Each of these has the following
nvidiaPackages(modulo incompatibilities):(Again, some of these are aliases.)
This is useful to have because users might have hardware constraints. It's not hard to imagine a scenario where a user might have a WiFi chip that only works with kernel ABIs < 5.4 and require the 470 nvidia driver for their old GPU. Packaging just the latest kernel and just the latest Nvidia driver would make this user unable to use their system.