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Under Settings/System/Audio output it says "Error - no devices found" for Audio output device and Pasthrough output device.

I'm using an optical audio connection on a AT5IONT-I mobo. (Nvidia)

Debug log: http://pastebin.com/Fsp2DX0i

Code:

xbmc@HTPC:~$ aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
default:CARD=Intel
    HDA Intel, ALC887 Analog
    Default Audio Device
sysdefault:CARD=Intel
    HDA Intel, ALC887 Analog
    Default Audio Device
front:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    Front speakers
surround40:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Intel,DEV=0
    HDA Intel, ALC887 Digital
    IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    Direct sample mixing device
dmix:CARD=Intel,DEV=1
    HDA Intel, ALC887 Digital
    Direct sample mixing device
dsnoop:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    Direct sample snooping device
dsnoop:CARD=Intel,DEV=1
    HDA Intel, ALC887 Digital
    Direct sample snooping device
hw:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    Direct hardware device without any conversions
hw:CARD=Intel,DEV=1
    HDA Intel, ALC887 Digital
    Direct hardware device without any conversions
plughw:CARD=Intel,DEV=0
    HDA Intel, ALC887 Analog
    Hardware device with all software conversions
plughw:CARD=Intel,DEV=1
    HDA Intel, ALC887 Digital
    Hardware device with all software conversions
hdmi:CARD=NVidia,DEV=0
    HDA NVidia, HDMI 0
    HDMI Audio Output
dmix:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    Direct sample mixing device
dsnoop:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    Direct sample snooping device
hw:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    Direct hardware device without any conversions
plughw:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    Hardware device with all software conversions

Update
Audio works booting XBMC from the installation USB flash drive with AVR turned on.
Audio works first boot after fresh install with AVR turned on, after a reboot (AVR still turned on) audio is gone and "Error - no devices found" in audio output settings.

Update 2
This issue seems to be related to using an SSD see page 7,8.

I have this problem since I added a SSD to the HTPC.
Based on previous solution a have added a sleep 10 in /etc/init/lightdm.conf just before the actual start of lightdm.

The audio subsystem is not initialized yet without this wait which yields in not finding any audio devices.

Somehow there needs to be soms check that (all) sound systems are intialized or you need to make sure lightdm is the absolute last process to boot.

Vincent

Related tickets:
http://trac.xbmc.org/ticket/13703
http://trac.xbmc.org/ticket/13578