GDM and LightDM are already using this approach. It also allows us to
enable Kwallet integration more globally without generating stray PAM
services.
The default configuration of login service includes both options sddm
was setting explicitly.
i based this on the neighboring lightdm-greeters/mini.nix module.
lightdm-mobile-greeter doesn't have a lot of configuration options.
it grabs the default user to login as from lightdm, along with which DE
it should launch. so no further configuration should be needed aside
from enabling `services.xserver.displayManager.lightdm.enable` and
either setting `services.xserver.displayManager.defaultSession` to the
appropriate session or explicitly defining a seat like:
```nix
services.xserver.displayManager.lightdm.extraSeatDefaults = ''
user-session = phosh
'';
```
most of these are hidden because they're either part of a submodule that
doesn't have its type rendered (eg because the submodule type is used in
an either type) or because they are explicitly hidden. some of them are
merely hidden from nix-doc-munge by how their option is put together.
conversions were done using https://github.com/pennae/nix-doc-munge
using (probably) rev f34e145 running
nix-doc-munge nixos/**/*.nix
nix-doc-munge --import nixos/**/*.nix
the tool ensures that only changes that could affect the generated
manual *but don't* are committed, other changes require manual review
and are discarded.
This config is removed when removing[1] fonts.fontconfig.hinting.style
option.
However, when adding[2] that option back, this config is missing.
[1]: 65592837b6
[2]: 659096dd89
Other popular distros (OpenSuse, Ubuntu, Gentoo, Arch) read $HOME/.profile when starting X11 display managers.
When moving to nixOS, that is then broken leading to unpredictable behavior (probably programs not working).
This adds similar behavior to https://github.com/sddm/sddm/blob/develop/data/scripts/Xsession
Related to #185979
the conversion procedure is simple:
- find all things that look like options, ie calls to either `mkOption`
or `lib.mkOption` that take an attrset. remember the attrset as the
option
- for all options, find a `description` attribute who's value is not a
call to `mdDoc` or `lib.mdDoc`
- textually convert the entire value of the attribute to MD with a few
simple regexes (the set from mdize-module.sh)
- if the change produced a change in the manual output, discard
- if the change kept the manual unchanged, add some text to the
description to make sure we've actually found an option. if the
manual changes this time, keep the converted description
this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
Recent `wrapGAppsHook` change stops `adwaita-icon-theme` from being added to `XDG_DATA_DIRS`:
b1e73fa2e0
Since `display-manager.service` does not have `/run/current-system/sw/share` in `XDG_DATA_DIRS`, it does not pick up the globally installed icon theme either, preventing icons from showing.
Let’s make Adwaita available to fix that for now.
Fixes: https://github.com/NixOS/nixpkgs/issues/171692
GNOME Shell 42 switched an icon for the accessibility menu in the top panel
to one from gnome-control-center instead of a legacy one from adwaita-icon-theme:
https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2155
Let’s add that dependency to the systemd unit since installing it
through `environment.systemPackages` is not enough due to environment isolation.
For now at least. I expect someone will find a working type later.
It's incorrect and was causing bad issues. Example test case:
nix-instantiate nixos/release.nix -A tests.xfce.x86_64-linux --dry-run
This is a partial revert of commit b2d803c from PR #162271.
Required as visible in the lightdm tests:
> Error updating user /org/freedesktop/Accounts/User1001: GDBus.Error:org.freedesktop.Accounts.Error.PermissionDenied: Not authorized: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.PolicyKit1 was not provided by any .service files
some options have default that are best described in prose, such as
defaults that depend on the system stateVersion, defaults that are
derivations specific to the surrounding context, or those where the
expression is much longer and harder to understand than a simple text
snippet.
