XFX GeForce 9300 Mainboard Hdmi LPCM Channel mapping

Just wanted to mention a channel mapping issue i had while i was uprgading my XBMCbuntu 12 box with a XFX Geforce 9300 mainboard.

I always set XBMC to resample audio and sync video to soundcard, that way i get flickerfree movies.
This means i need to use LPCM for sound to my surround. And here is where the problem started.

My center channel was moved to Rear Right. :-(

While xbmc is running but movie is stopped i can do the following from an putty SSH session.

xbmc@KANON:~$ speaker-test -D hdmi -c 6

I hear that the mainboard clearly mapped the channels wrong.

While it is playing this

>  0 - Front Left
>  4 - Center
>  1 - Front Right
>  3 - Rear Right
>  2 - Rear Left
>  5 - LFE
i hear the real order as:

Front Left
Rear Left
Front Right
LFE
Center
Rear Right


Editing the alsa userconfig with
xbmc@KANON:~$ nano .asoundrc

and put the following in the empty file:
pcm.hdmi-remap{
        type route
        slave.pcm hdmi
        ttable.0.0 1
        ttable.1.1 1
        ttable.2.4 1
        ttable.3.5 1
        ttable.4.2 1
        ttable.5.3 1
}


testrun:
xbmc@KANON:~$ speaker-test -D hdmi-remap -c 6
works butiful :-)

Rebooted XBMC machine and now i have a new device in the audiosettings:

After a quic test in a movie i finally have my center in the center speaker :-)