VDR 1.7.5 + oxine + HDMI output

I get sound through the HDMI socket which is good but there is no way to control it from VDR (I am sure there is but I don't know how to)

The volume level on the screen goes left or right no problems, I can press the mute button and it works too, except that the actual sound is unaffected.

I have OSS-4.1-1052

Can somebody help or at least point me in the right direction?

dmesg |grep HDA [ 65.298707] oss_hdaudio: Unknown HDA codec 0x10de0002 [ 65.313732] oss_hdaudio: Unknown HDA codec 0x10de0002

and this is the output from ossinfo Version info: OSS 4.1 (b 1052/200903240610) (0x00040100) Platform: Linux/i686 2.6.27-11-generic #1 SMP Wed Apr 1 20:57:48 UTC 2009 (mythtv-vdr)

Number of audio devices: 9 Number of audio engines: 13 Number of mixer devices: 1

Device objects 0: osscore0 OSS core services 1: oss_hdaudio0 nVidia HD Audio interrupts=1576709 (1576710) HD Audio controller nVidia HD Audio Vendor ID 0x10de0774 Subvendor ID 0x147b1c44 Codec 0: ALC888 (0x10ec0888/0x147b0000) Codec 3: Unknown (0x10de0002/0x10de0101) 2: oss_usb0 USB audio core services

Mixer devices 0: High Definition Audio ALC888 (Mixer 0 of device object 1)

Audio devices HD Audio play front /dev/oss/oss_hdaudio0/pcm0 (device index 0) HD Audio play rear /dev/oss/oss_hdaudio0/pcm1 (device index 1) HD Audio play center/LFE /dev/oss/oss_hdaudio0/pcm2 (device index 2) HD Audio play side /dev/oss/oss_hdaudio0/pcm3 (device index 3) HD Audio play pcm4 /dev/oss/oss_hdaudio0/pcm4 (device index 4) HD Audio play spdif-out /dev/oss/oss_hdaudio0/spdout0 (device index 5) HD Audio play spdifout /dev/oss/oss_hdaudio0/spdout1 (device index 6) HD Audio rec mix /dev/oss/oss_hdaudio0/pcmin0 (device index 7) HD Audio rec mix /dev/oss/oss_hdaudio0/pcmin1 (device index 8)