* nixos/gdm: Fix pulseaudio tmpfiles structure
Fix the following startup failure of the sound service in the gdm
session that was introduced by #75893:
```
Feb 16 11:44:15 qp pulseaudio[1432]: W: [pulseaudio] core-util.c: Failed to open configuration file '/run/gdm/.config/pulse//daemon.conf': Not a directory
Feb 16 11:44:15 qp pulseaudio[1432]: W: [pulseaudio] daemon-conf.c: Failed to open configuration file: Not a directory
Feb 16 11:44:15 qp systemd[1380]: pulseaudio.service: Main process exited, code=exited, status=1/FAILURE
Feb 16 11:44:15 qp systemd[1380]: pulseaudio.service: Failed with result 'exit-code'.
Feb 16 11:44:15 qp systemd[1380]: Failed to start Sound Service.
```
Co-authored-by: worldofpeace <worldofpeace@protonmail.ch>
Some display managers (e.g. SDDM) set the XDG_CURRENT_DESKTOP variable accroding to this parameter.
If this variable is not defined, there will be some problems (e.g. MATE doesn't have icons on the desktop).
Fixes https://github.com/NixOS/nixpkgs/issues/71427
We switched to unified default session option services.xserver.displayManager.defaultSession
and included fallback path for the legacy options. Unfortunately when only
services.xserver.windowManager.default is set and not services.xserver.desktopManager.default,
it got incorrectly converted to the new option.
This should fix that.
Closes: https://github.com/NixOS/nixpkgs/issues/76684
This module allows root autoLogin, so we would break that for users, but
they shouldn't be using it anyways. This gives the impression like auto
is some special display manager, when it's just lightdm and special pam
rules to allow root autoLogin. It was created for NixOS's testing
so I believe this is where it belongs.
Previously if ~/.background-image wasn't present, the background would
be set to black, which would override what the user could
set in e.g. services.xserver.windowManager.i3.extraSessionCommands
On numerous occasions I have seen users mistake this
module as libinput because it being called "multitouch"
and them being unaware that the actually module they want
is libinput. They then run into several decrepit bugs due
to the completely out-of-date nature of the underlying package.
The underlying package hasn't been changed to an up-to-date
fork in a period of 8 years. I don't consider this to be production quality.
However, I'm not opposed for the module being readded to NixOS
with new packaging, and a better name.
Fixes this error from `nixos-rebuild switch` introduced by #75893:
setting up tmpfiles
[/etc/tmpfiles.d/nixos.conf:7] Invalid age 'yes'.
warning: error(s) occurred while switching to the new configuration
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
