[Nix-dev] i810 configuration option in trunk

[Tony White]

Hi everyone,
I just pulled trunk and tried a rebuild-switch but faced this error
with no immediately obvious reason :

sh-3.2$ sudo nixos-rebuild switch
obtaining list of Nix archives at
`http://nixos.org/releases/nixpkgs/channels/nixpkgs-unstable/MANIFEST.bz2'...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
2217 store paths in manifest
store derivation is
/nix/store/11ppwx29w4ihfmlba1lssa6m509b07sa-nix-0.13pre15614.drv
/nix/store/50a63gfd1jhl43zvfm7lqvv1jvwn7yxl-nix-0.13pre15614
error: while instantiating the derivation named `system' at
`/etc/nixos/nixos/system/system.nix:399:9':
while evaluating the derivation attribute `activateConfiguration' at
`/etc/nixos/nixos/system/system.nix:407:12':
while instantiating the derivation named `activate-configuration.sh'
at `/etc/nixos/nixpkgs/pkgs/build-support/substitute/substitute-all.nix:6:7':
while evaluating the derivation attribute `etc' at
`/etc/nixos/nixos/system/system.nix:309:12':
while instantiating the derivation named `etc' at
`/etc/nixos/nixos/helpers/make-etc.nix:4:7':
while evaluating the derivation attribute `sources' at
`/etc/nixos/nixos/helpers/make-etc.nix:9:10':
while evaluating the function at `/etc/nixos/nixos/helpers/make-etc.nix:9:19':
while evaluating the attribute `source' at
`/etc/nixos/nixos/etc/default.nix:78:13':
in a string concatenation:
while instantiating the derivation named `upstart-jobs' at
`/etc/nixos/nixpkgs/pkgs/top-level/all-packages.nix:313:12':
while evaluating the derivation attribute `jobs' at
`/etc/nixos/nixos/upstart-jobs/gather.nix:5:35':
while instantiating the derivation named `upstart-xserver' at
`/etc/nixos/nixpkgs/pkgs/top-level/all-packages.nix:313:12':
while evaluating the derivation attribute `job' at
`/etc/nixos/nixos/upstart-jobs/make-job.nix:9:18':
while evaluating the attribute `job' at
`/etc/nixos/nixos/upstart-jobs/xserver.nix:419:6':
in a string concatenation:
while instantiating the derivation named `slim.cfg' at
`/etc/nixos/nixpkgs/pkgs/top-level/all-packages.nix:313:12':
while evaluating the derivation attribute `text' at
`/etc/nixos/nixpkgs/pkgs/top-level/all-packages.nix:325:29':
in a string concatenation:
in a string concatenation:
while instantiating the derivation named `xserver.conf' at
`/etc/nixos/nixos/upstart-jobs/xserver.nix:78:9':
while evaluating the derivation attribute `buildCommand' at
`/etc/nixos/nixos/upstart-jobs/xserver.nix:140:17':
in a string concatenation:
attribute `xf86videoi810' missing

It's odd because if I use "vesa" or "intel" instead of i810 in
configuration.nix, I don't see the error.
Should be using the i810 xorg driver though?
Anyone any clues?

Thanks,
Tony