On 2010-11-23 03:16, Lennart Poettering wrote:
Heya,
Up to this point most distributions have been using different init scripts/udev rules files to save/restore mixer settings at boot/hotplug/shutdown. Please see my two attached patches for alsa-utils which add standardized, simplified support for this.
The first patch is stolen from Debian/Ubuntu, which moves asound.state to /var/lib, which is a more appropriate place, since /etc might be read-only.
The second patch includes a minimal udev rule (executed synchronously, enabled on all systems, regardless of systemd is used or not) and two systemd service files (executed asynchronously at boot/shutdown, only enabled if built with systemd support).
Lennart,
Could you clarify how this affects/changes behaviour for distros not running systemd?
Also, I personally don't like the idea of saving the mixer state at shutdown. (Although I know Ubuntu has that as well.) Too many times I have cranked up the volume for some reason, then turned the computer off, only to find the login sound at maximum volume.
Given that most big distributions are moving to adopt systemd sooner or later
That assumption is not necessarily true at this point. AFAIK, it remains to be seen. That said, I don't mind a systemd patch into alsa-utils, as long as it doesn't break or bloat anything for non-systemd distros.