boot.extraModulePackages = [ pkgs.linuxPackages.nvidia_x11 ] fails to build

[peti]

If I put

boot.extraModulePackages = [ pkgs.linuxPackages.nvidia_x11 ] fails to build

into my configuration.nix on nixos-stable, then the system build fails with the following error:

# nixos-rebuild boot
building Nix...
building the system configuration...
these derivations will be built:
  /nix/store/6nqny4qlxirii4ka5kh2lz5cq89l6106-lightdm-display-setup.drv
  /nix/store/rqbarzy8w4azp7gln25zhskqq0hncmpf-xserver.conf.drv
  /nix/store/czxd229dk8rjfnp7r0b8lql8c13gc1kl-xserver-wrapper.drv
  /nix/store/1p3xr74m5msar3zcha224z0r7hc3yp5r-lightdm.conf.drv
  /nix/store/9962ai3nzs8kj1zb6s92j587ihfx4gx1-nvidia-persistenced-435.21.drv
  /nix/store/g80fpzx10s7nkf8150yv7lmbb439dlmy-nvidia-settings-435.21.drv
  /nix/store/7481hdiz326fc55ldfx9x0mdsicykdjl-system-path.drv
  /nix/store/x7x952axl1fvxs0z9iw58ph0pk5cx5mz-dbus-1.drv
  /nix/store/6bg70cg8g9d9mv8a059nnhx2m5acm5bi-unit-dbus.service.drv
  /nix/store/6mgr1wgkk60l8kyq0z3kc940qclsc7s7-unit-accounts-daemon.service.drv
  /nix/store/9ffnhzyg07vbdz42az8979zp5m303g30-set-environment.drv
  /nix/store/7jqyr8lj9wiq2zgpdaiif7nr9l6b0v91-etc-profile.drv
  /nix/store/wd0l2pc5gcka91wv5b95pg6nv48614qy-linux-5.2.13-modules.drv
  /nix/store/gcsp3zl65dacwdzly01x4151l0cff723-linux-5.2.13-modules-shrunk.drv
  /nix/store/93b55vj4zyrs53sgvffzn93h1fbs36i6-stage-1-init.sh.drv
  /nix/store/9v88mr502yx0nlpq0i0c5724zhf0r77k-unit-systemd-fsck-.service.drv
  /nix/store/ials5ydkqpswgb5vf2zla53vwxifmy1f-opengl-drivers.drv
  /nix/store/bk2965pwpaqzc7piphkpchxj56g00qlz-etc-nixos.conf.drv
  /nix/store/d5a0yfmydkiqcnxcrn649ws9lf76fi44-unit-polkit.service.drv
  /nix/store/xlmnl83gd409m82qcm9snqbw3jl0y3z9-unit-dbus.service.drv
  /nix/store/g433i16phx77g3yrkzjykmq0vly2k0ba-system-units.drv
  /nix/store/ip29vi3lgvj50j74b5id6109d4qf16xf-user-units.drv
  /nix/store/irwvsjyywi5cp58pg7sl41z5bsvlp042-etc-zshenv.drv
  /nix/store/d9s7jmm1970y8n7lgxl1c6f4b9dsximg-etc.drv
  /nix/store/fmfr513h21kq3virsiqr0d8j5j8ymmkn-kernel-modules.drv
  /nix/store/jcfv308j9c3l4n15mg44dl4dpd6b9p21-initrd-linux-5.2.13.drv
  /nix/store/jfkm2ij5z80pv6n2xynlycr67ajpqn8v-nixos-system-latitude-19.09pre192418.e19054ab3cd.drv
building '/nix/store/fmfr513h21kq3virsiqr0d8j5j8ymmkn-kernel-modules.drv'...
building '/nix/store/6nqny4qlxirii4ka5kh2lz5cq89l6106-lightdm-display-setup.drv'...
building '/nix/store/ials5ydkqpswgb5vf2zla53vwxifmy1f-opengl-drivers.drv'...
building '/nix/store/9962ai3nzs8kj1zb6s92j587ihfx4gx1-nvidia-persistenced-435.21.drv'...
building '/nix/store/wd0l2pc5gcka91wv5b95pg6nv48614qy-linux-5.2.13-modules.drv'...
collision between `/nix/store/qypkrykd93y4810kbygy9mmsxmzm1hif-nvidia-x11-435.21-5.2.13-bin/bin/nvidia-cuda-mps-server' and `/nix/store/pan81621yijsrdbwf6fc0v58zdj5ij91-nvidia-x11-435.21-4.19.71-bin/bin/nvidia-cuda-mps-server'
builder for '/nix/store/fmfr513h21kq3virsiqr0d8j5j8ymmkn-kernel-modules.drv' failed with exit code 255
cannot build derivation '/nix/store/jfkm2ij5z80pv6n2xynlycr67ajpqn8v-nixos-system-latitude-19.09pre192418.e19054ab3cd.drv': 1 dependencies couldn't be built
error: build of '/nix/store/jfkm2ij5z80pv6n2xynlycr67ajpqn8v-nixos-system-latitude-19.09pre192418.e19054ab3cd.drv' failed

[peti]

Hmm, it appears that

extraModulePackages = [ config.boot.kernelPackages.nvidia_x11 ];

succeeds. We should probably document that version instead of the former?

[worldofpeace]

Hmm, it appears that

extraModulePackages = [ config.boot.kernelPackages.nvidia_x11 ];

succeeds. We should probably document that version instead of the former?

It's in the wiki https://nixos.wiki/wiki/Linux_kernel#Custom_kernel_modules

[peti]

I was thinking about the example in configuration.nix. That's the one I saw.