alsactl restore udev rule failing

[GitHub issues - opened]

alsa-project/alsa-utils issue #175 was opened from rnhmjoj:

It seems the udev rule to restore card settings is always failing during the boot:
```
$ journalctl -u systemd-udevd -b -o cat --grep alsa
controlC2: Process '/sbin/alsactl restore 2' failed with exit code 99.
controlC2: Process '/sbin/alsactl restore 2' failed with exit code 99.
controlC1: Process '/sbin/alsactl restore 1' failed with exit code 99.
controlC0: Process '/sbin/alsactl restore 0' failed with exit code 99.
```
I checked and made sure the file system is mounted and /var/lib/asound.state is ok by the time the rule runs.
I guess the issue could be the hardware is not yet fully initialised.

Somehow the settings of card 0 (HDA Intel PCH) are restored anyway, but not those of card 2 (HDA ATI HDMI).
Manually running `alsactl restore 2` later works, albeit partially (some softvol controls are never recovered).

Issue URL     : https://github.com/alsa-project/alsa-utils/issues/175
Repository URL: https://github.com/alsa-project/alsa-utils