systemd-udevd[409]: Process '/usr/sbin/alsactl -E HOME=/run/alsa restore 1' failed with exit code 99

[dino99]

This error is logged :
systemd-udevd[409]: Process '/usr/sbin/alsactl -E HOME=/run/alsa restore 1' failed with exit code 99

note: sound works as expected when the GS session is opened

oem@u64:~$ which alsactl
/usr/sbin/alsactl
oem@u64:~$ df -h /usr/sbin/alsactl
Filesystem Size Used Avail Use% Mounted on
/dev/sdb4 18G 11G 6.5G 62% /
oem@u64:~$ df -h /run/alsa
Filesystem Size Used Avail Use% Mounted on
tmpfs 396M 12M 385M 3% /run

(/run/alsa does not exist but /run/alsa/ which is an empty subdir)

From /usr/sbin/alsactl restore (without 'sudo'):

Found hardware: "HDA-Intel" "Realtek ALC882" "HDA:10ec0882,1043e601,00100101" "0x1043" "0x81d8"

Found hardware: "HDA-Intel" "Nvidia GPU 60 HDMI/DP" "HDA:10de0060,1458362e,00100100" "0x1458" "0x362e"

Hardware is initialized using a generic method

Looks like that "Nvidia GPU ..." is detected but not identified by alsactl (so the 99 exit code)

"init tries to initialize all devices to a default state. If device is not known, error code 99 is returned." http://linux.die.net/man/1/alsactl

oem@u64:~$ sudo /usr/sbin/alsactl restore
[sudo] password for oem:
oem@u64:~$
that command works: volume is set back to 50% from 100% initialy

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: alsa-utils 1.1.2-1ubuntu1
ProcVersionSignature: Ubuntu 4.8.0-10.11-generic 4.8.0-rc6
Uname: Linux 4.8.0-10-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CurrentDesktop: GNOME
Date: Fri Sep 16 16:31:17 2016
SourcePackage: alsa-utils
UpgradeStatus: No upgrade log present (probably fresh install)

[dino99 (9d9)]

Some changelog details might be related:

alsa-utils (1.1.2-1ubuntu1) yakkety; urgency=low
  - Move init script volume settings to new alsactl database
  - Put the daemon file in /var/lib/alsa
  - Create /run/alsa directory so that systemd services don't fail
  (/run/alsa is missing & /run/alsa/ is empty)
  * Drop upstart files, Debian doesn't carry them, and we use systemd for
    init
- Luke Yelavich <email address hidden> Mon, 08 Aug 2016 12:08:22 +1000

[dino99 (9d9)]

That error is no more logged now