I hava a big problem. I installed OSS4 and just get stereo on my spdout0 or pmc0. The osstest just plays also stereo? Also XBMC and VDR just knows stereo. After the PC there is an Denon 2308 reseiver. Can I test the 5.1 Sound?
The onboard card is an (the nVidia I don´t use):
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0:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40)
01:00.1 Audio device: nVidia Corporation Device 0be4 (rev a1)
and the ossinfo -v3 shows:
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Version info: OSS 4.2 (b 2004/201101131841) (0x00040100) OSS_HG
Hg revision: changeset: 923:09a210f84f55, tag: tip, date: Thu Jan 06 07:55:36 2011 +0200, summary: yet another patch for build2004
Platform: Linux/x86_64 2.6.35-gentoo-r15 #19 SMP Mon Feb 14 21:29:56 CET 2011 (MediaPC)
Number of audio devices: 10
Number of audio engines: 14
Number of MIDI devices: 0
Number of mixer devices: 1
Device objects
0: osscore0 OSS core services
1: oss_hdaudio0 ATI HD Audio interrupts=506516 (506516)
HD Audio controller ATI HD Audio
Vendor ID 0x10024383
Subvendor ID 0x1458a102
Codec 0: Unknown (0x10ec0892/0x1458a102)
2: oss_usb0 USB audio core services
MIDI devices (/dev/midi*)
Mixer devices
0: High Definition Audio 0x10ec089 (Mixer 0 of device object 1)
Device file /dev/oss/oss_hdaudio0/mix0, Legacy device /dev/mixer0
Priority: 10
Caps:
Device handle: PCIa1021458-0000:00:14.2-mx01
Device priority: 10
Audio devices
HD Audio play pcm1 /dev/oss/oss_hdaudio0/pcm0 (device index 0)
Legacy device /dev/dsp0
Caps: DUPLEX TRIGGER MMAP
Modes: IN/OUT
Out engine 1: 0/HD Audio play pcm1
Available for use
Engine 2: 10/HD Audio play pcm1 (vmix)
Available for use
Engine 3: 11/HD Audio play pcm1 (vmix)
Available for use
Engine 4: 12/HD Audio play pcm1 (vmix)
Available for use
Engine 5: 13/HD Audio play pcm1 (vmix)
Available for use
Input formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au01
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 8
Native sample rates (min - max): 44100 - 192000 (44100,48000,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
HD Audio play pcm2 /dev/oss/oss_hdaudio0/pcm1 (device index 1)
Legacy device /dev/dsp1
Caps: TRIGGER MMAP
Modes: OUTPUT
Out engine 1: 1/HD Audio play pcm2
Available for use
Input formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au02
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 2
Native sample rates (min - max): 44100 - 192000 (44100,48000,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
HD Audio play pcm3 /dev/oss/oss_hdaudio0/pcm2 (device index 2)
Legacy device /dev/dsp2
Caps: TRIGGER MMAP
Modes: OUTPUT
Out engine 1: 2/HD Audio play pcm3
Available for use
Input formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au03
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 2
Native sample rates (min - max): 44100 - 192000 (44100,48000,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
HD Audio play pcm4 /dev/oss/oss_hdaudio0/pcm3 (device index 3)
Legacy device /dev/dsp3
Caps: TRIGGER MMAP
Modes: OUTPUT
Out engine 1: 3/HD Audio play pcm4
Available for use
Input formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au04
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 2
Native sample rates (min - max): 44100 - 192000 (44100,48000,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
HD Audio play pcm5 /dev/oss/oss_hdaudio0/pcm4 (device index 4)
Legacy device /dev/dsp4
Caps: TRIGGER MMAP
Modes: OUTPUT
Out engine 1: 4/HD Audio play pcm5
Available for use
Input formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au05
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 2
Native sample rates (min - max): 44100 - 192000 (44100,48000,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
HD Audio play spdifout1 /dev/oss/oss_hdaudio0/spdout0 (device index 5)
Legacy device /dev/dsp5
Caps: TRIGGER MMAP
Modes: OUTPUT
Out engine 1: 5/HD Audio play spdifout1
Available for use
Input formats (0x00001410):
AFMT_S16_LE - 16 bit signed little endian
AFMT_AC3 - AC3 (Dolby Digital) encoded audio
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001410):
AFMT_S16_LE - 16 bit signed little endian
AFMT_AC3 - AC3 (Dolby Digital) encoded audio
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au06
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 2
Native sample rates (min - max): 32000 - 192000 (32000,44100,48000,88200,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
HD Audio play spdifout2 /dev/oss/oss_hdaudio0/spdout1 (device index 6)
Legacy device /dev/dsp6
Caps: TRIGGER MMAP
Modes: OUTPUT
Out engine 1: 6/HD Audio play spdifout2
Available for use
Input formats (0x00001410):
AFMT_S16_LE - 16 bit signed little endian
AFMT_AC3 - AC3 (Dolby Digital) encoded audio
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001410):
AFMT_S16_LE - 16 bit signed little endian
AFMT_AC3 - AC3 (Dolby Digital) encoded audio
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au07
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 2
Native sample rates (min - max): 32000 - 192000 (32000,44100,48000,88200,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
HD Audio rec mix7 /dev/oss/oss_hdaudio0/pcmin0 (device index 7)
Legacy device /dev/dsp7
Caps: DUPLEX TRIGGER MMAP
Modes: IN/OUT
In engine 1: 7/HD Audio rec mix7
Available for use
Engine 2: 10/HD Audio play pcm1 (vmix)
Available for use
Engine 3: 11/HD Audio play pcm1 (vmix)
Available for use
Engine 4: 12/HD Audio play pcm1 (vmix)
Available for use
Engine 5: 13/HD Audio play pcm1 (vmix)
Available for use
Input formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au08
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 2
Native sample rates (min - max): 44100 - 192000 (44100,48000,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
HD Audio rec mix6 /dev/oss/oss_hdaudio0/pcmin1 (device index 8)
Legacy device /dev/dsp8
Caps: TRIGGER MMAP
Modes: INPUT
In engine 1: 8/HD Audio rec mix6
Available for use
Input formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001010):
AFMT_S16_LE - 16 bit signed little endian
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au09
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 2
Native sample rates (min - max): 44100 - 192000 (44100,48000,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
HD Audio rec spdifin2 /dev/oss/oss_hdaudio0/spdin0 (device index 9)
Legacy device /dev/dsp9
Caps: TRIGGER MMAP
Modes: INPUT
In engine 1: 9/HD Audio rec spdifin2
Available for use
Input formats (0x00001410):
AFMT_S16_LE - 16 bit signed little endian
AFMT_AC3 - AC3 (Dolby Digital) encoded audio
AFMT_S32_LE - 32 bit signed little endian
Output formats (0x00001410):
AFMT_S16_LE - 16 bit signed little endian
AFMT_AC3 - AC3 (Dolby Digital) encoded audio
AFMT_S32_LE - 32 bit signed little endian
Device handle: PCIa1021458-0000:00:14.2-au10
Related mixer dev: 0
Sample rate source: 0
Preferred channel configuration: Not indicated
Supported number of channels (min - max): 2 - 2
Native sample rates (min - max): 44100 - 192000 (44100,48000,96000,192000)
HW Type: Not indicated.
Minimum latency: Not indicated
Nodes
/dev/dsp -> /dev/oss/oss_hdaudio0/pcm0
/dev/dsp_in -> /dev/oss/oss_hdaudio0/pcmin0
/dev/dsp_out -> /dev/oss/oss_hdaudio0/pcm0
/dev/dsp_ac3 -> /dev/oss/oss_hdaudio0/spdout0
/dev/dsp_mmap -> /dev/oss/oss_hdaudio0/pcm0
/dev/dsp_multich -> /dev/oss/oss_hdaudio0/pcm0
I hope you can help me, because the OSS Sound is so good

Greetings from Winterthur