Any chance of including the asound.conf and HDA-intel.conf from this guide to the ion specific build? It fixes channel mappings for multi-channel pcm audio.
you can store your asound.conf at /storage/.config/asound.conf . if OpenELEC found this config file it will be used. This must
be do to have sound over HDMI on Zotac Boards, but can break sound on other systems (e.g. Intel only systems in the generic build) - thats the reason to not install this file by default.
to store your asound.conf to /storage/.config you can use scp:
scp asound.conf root@<ip-address>:/storage/.config
or via Samba in the "Configfiles" share
btw... dont know what HDA-intel.conf do. but with the asound.conf from here:
i have multichannel audio on ION based Systems (Acer Revo, Zotac...)