Open Sound System

by **vanfanel** » Thu Oct 22, 2009 9:42 am

Hello there

As it seems OSS4 is the best audio API for Linux nowadays, I'm in the process of migrating my systems to this API. I really need OSS's low-latency capabilities.
I've compiled & installed the latest sources from the 4Front repositories, and the oss daemon is running in my system.

osstest is running fine, but no sound output. No errors reported. All testst are OK, except I get no sound. Software-wise, everything is OK.
If I configure any application to use OSS output, there is activity in the OSSXMIX panels. I can see the mixer bars move! So, YES, my OSS instalation is allright.

I KNOW all I need is the right ossxmix combination: I just can't find the right one for the MACBOOK & Mac Mini 2009 computers!

I also know many users claim to get sound in macbok using the line-in jack. Is it the only method? Should I connect my speakers to that output insted of the normal output jack? I've also tried that, but I just can't find a combination in osxmix... I tried both the BLUE and GREEN jack, changing to every single mixer available for each one (rear, front, side, pcm3, line.in...)

I've read the Gentoo how-to to oss and the 4Front Technnologies wiki, It seems HDA devices need some adjustments. That's ok, but I can't find the ossxmix configuration for those computers.

Can anyone help me here, plese? Any Linux & OSS users on Mac in this forum?? HOW did you make it work? I've followed the recommendations in the wiki, and I've tried every osxmix combination with an application running on OSS in the background. As I said, mixer activity can be seen in osxmix, but no actual sound...

Please help!

Thanks!

by **cesium** » Fri Oct 23, 2009 1:09 am

Can you post the output of 'ossinfo -v3' and 'ossmix -a' (if that complains, just do 'ossmix' instead)?

by **vanfanel** » Sat Oct 24, 2009 8:33 pm

oss -3 outputs this:

Code: Select all: Version info: OSS 4.2 (b 2000/200910242022) (0x00040100) OSS_HG Hg revision: changeset: 865:42340bbe9b59, tag: tip, date: Tue Oct 20 17:36:12 2009 +0300, summary: Fixed crash in the envy24 driver Platform: Linux/i686 2.6.30-gentoo-r6 #17 SMP PREEMPT Sat Oct 24 20:17:33 Local time zone must be set- (commodore) 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 nVidia HD Audio interrupts=525 (525) HD Audio controller nVidia HD Audio Vendor ID 0x10de0ac0 Subvendor ID 0x10decb79 Codec 0: ALC885 (0x10ec0885/0x106b4100) 2: oss_usb0 USB audio core services MIDI devices (/dev/midi*) Mixer devices 0: High Definition Audio ALC885 (Mixer 0 of device object 1) Device file /dev/oss/oss_hdaudio0/mix0, Legacy device /dev/mixer0 Priority: 10 Caps: Device handle: PCIcb7910de-0000:00:08.0-mx01 Device priority: 10 Audio devices HD Audio play front /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 front Available for use Engine 2: 10/HD Audio play front (vmix) Available for use Engine 3: 11/HD Audio play front (vmix) Available for use Engine 4: 12/HD Audio play front (vmix) Available for use Engine 5: 13/HD Audio play front (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: PCIcb7910de-0000:00:08.0-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 rear /dev/oss/oss_hdaudio0/pcm1 (device index 1) Legacy device /dev/dsp1 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 1/HD Audio play rear 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: PCIcb7910de-0000:00:08.0-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 center/LFE /dev/oss/oss_hdaudio0/pcm2 (device index 2) Legacy device /dev/dsp2 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 2/HD Audio play center/LFE 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: PCIcb7910de-0000:00:08.0-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 side /dev/oss/oss_hdaudio0/pcm3 (device index 3) Legacy device /dev/dsp3 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 3/HD Audio play side 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: PCIcb7910de-0000:00:08.0-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 pcm4 /dev/oss/oss_hdaudio0/pcm4 (device index 4) Legacy device /dev/dsp4 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 4/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: PCIcb7910de-0000:00:08.0-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 spdif-out /dev/oss/oss_hdaudio0/spdout0 (device index 5) Legacy device /dev/dsp5 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 5/HD Audio play spdif-out 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: PCIcb7910de-0000:00:08.0-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): 44100 - 192000 (44100,48000,88200,96000,192000) HW Type: Not indicated. Minimum latency: Not indicated HD Audio rec mix /dev/oss/oss_hdaudio0/pcmin0 (device index 6) Legacy device /dev/dsp6 Caps: DUPLEX TRIGGER MMAP Modes: IN/OUT In engine 1: 6/HD Audio rec mix Available for use Engine 2: 10/HD Audio play front (vmix) Available for use Engine 3: 11/HD Audio play front (vmix) Available for use Engine 4: 12/HD Audio play front (vmix) Available for use Engine 5: 13/HD Audio play front (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: PCIcb7910de-0000:00:08.0-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): 44100 - 192000 (44100,48000,96000,192000) HW Type: Not indicated. Minimum latency: Not indicated HD Audio rec mix /dev/oss/oss_hdaudio0/pcmin1 (device index 7) Legacy device /dev/dsp7 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 7/HD Audio rec mix 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: PCIcb7910de-0000:00:08.0-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 mix /dev/oss/oss_hdaudio0/pcmin2 (device index 8) Legacy device /dev/dsp8 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 8/HD Audio rec mix 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: PCIcb7910de-0000:00:08.0-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 spdifin /dev/oss/oss_hdaudio0/spdin0 (device index 9) Legacy device /dev/dsp9 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 9/HD Audio rec spdifin 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: PCIcb7910de-0000:00:08.0-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/pcm0 /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

And ossmix -a outputs this:

Code: Select all: Selected mixer 0/High Definition Audio ALC885 Known controls are: jack.green.mode <front|rear|center/LFE|side|pcm4|input> (currently input) jack.green [<leftvol>:<rightvol>] (currently 29.9:29.9 dB) jack.green.mute ON|OFF (currently OFF) jack.blue.mode <front|rear|center/LFE|side|pcm4|input> (currently front) jack.blue [<leftvol>:<rightvol>] (currently 29.9:29.9 dB) jack.blue.mute ON|OFF (currently ON) jack.int-speaker.mode <front|rear|center/LFE|side|pcm4|input> (currently input) jack.int-speaker [<leftvol>:<rightvol>] (currently 29.9:29.9 dB) jack.int-speaker.mute ON|OFF (currently OFF) record.mix.mute.int-speaker1 ON|OFF (currently OFF) record.mix.mute.headphone1 ON|OFF (currently OFF) record.mix.mute.linein1 ON|OFF (currently OFF) record.mix.mute.input-mix1 ON|OFF (currently OFF) record.mix1 [<leftvol>:<rightvol>] (currently 37.9:37.9 dB) record.mix.mute.int-speaker2 ON|OFF (currently OFF) record.mix.mute.headphone2 ON|OFF (currently OFF) record.mix.mute.linein2 ON|OFF (currently OFF) record.mix.mute.input-mix2 ON|OFF (currently OFF) record.mix2 [<leftvol>:<rightvol>] (currently 37.9:37.9 dB) record.mix.mute.int-speaker3 ON|OFF (currently OFF) record.mix.mute.headphone3 ON|OFF (currently OFF) record.mix.mute.linein3 ON|OFF (currently OFF) record.mix.mute.input-mix3 ON|OFF (currently OFF) record.mix3 [<leftvol>:<rightvol>] (currently 37.9:37.9 dB) misc.int-speaker [<leftvol>:<rightvol>] (currently 38.9:38.9 dB) misc.headphone [<leftvol>:<rightvol>] (currently 38.9:38.9 dB) misc.linein [<leftvol>:<rightvol>] (currently 38.9:38.9 dB) misc.front-mute ON|OFF (currently OFF) misc.input-mix-mute1 ON|OFF (currently OFF) misc.front1 [<leftvol>:<rightvol>] (currently 51.9:51.9 dB) misc.front2 <front|input-mix> (currently front) misc.rear-mute ON|OFF (currently ON) misc.input-mix-mute2 ON|OFF (currently OFF) misc.rear1 [<leftvol>:<rightvol>] (currently 51.9:51.9 dB) misc.rear2 <rear|input-mix> (currently rear) misc.center/lfe-mute ON|OFF (currently OFF) misc.input-mix-mute3 ON|OFF (currently OFF) misc.center/lfe1 [<leftvol>:<rightvol>] (currently 63.9:63.9 dB) misc.center/lfe2 <center/LFE|input-mix> (currently center/LFE) misc.side-mute ON|OFF (currently OFF) misc.input-mix-mute4 ON|OFF (currently OFF) misc.side1 [<leftvol>:<rightvol>] (currently 63.9:63.9 dB) misc.side2 <side|input-mix> (currently side) misc.pcm4-mute ON|OFF (currently OFF) misc.input-mix-mute5 ON|OFF (currently OFF) misc.pcm41 [<leftvol>:<rightvol>] (currently 51.9:51.9 dB) misc.pcm42 <pcm4|input-mix> (currently input-mix) vmix0-enable ON|OFF (currently ON) vmix0-rate <decimal value> (currently 48000) (Read-only) vmix0-channels <Stereo|Multich> (currently Stereo) vmix0-src <Fast|High|OFF> (currently Fast) vmix0-outvol <monovol> (currently 25.0 dB) vmix0-invol <monovol> (currently 25.0 dB) vmix0.pcm10 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm11 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm12 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm13 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)

I don't see any problem, but there's no sound output. Help me if you can. If I need to buy a license to get it working in my Mac Mini, please tell me. It's not about money when it's about being able to work in my favorite OS on X86.

Thanks in advance

by **cesium** » Sat Oct 24, 2009 10:04 pm

I have an idea, but you'll have to build OSS manually (see here how to get the source and build it). After getting the source, edit kernel/drv/oss_hdaudio/hdaudio_codecids.h and add the line:
"{0x106b4100, "Intel iMac", VF_ALC88X_HACK, (char **) &alc883remap, 0, hdaudio_mac_realtek_GPIO_init}" just below the other "Intel iMac" line. This diff below shows the needed change. After rebuild OSS4 restart it and it might work (I recall that "make install" is buggy on gentoo since /usr/lib is a symlink there. Do "sudo make tarball", extract the tarball to root ('-C /'), and do "sudo soundoff" and "sudo soundon" to restart OSS).

Code: Select all: diff -r ab65ee009008 kernel/drv/oss_hdaudio/hdaudio_codecids.h --- a/kernel/drv/oss_hdaudio/hdaudio_codecids.h Mon Sep 21 21:47:34 2009 +0300 +++ b/kernel/drv/oss_hdaudio/hdaudio_codecids.h Sat Oct 24 23:58:55 2009 +0200 {0x106b0a00, "Intel Mac V5", VF_NONE, (char **) &stac922xremap, 0, hdaudio_mac_sigmatel_GPIO_init}, {0x106b2200, "Intel Mac V5", VF_NONE, (char **) &stac922xremap, 0, hdaudio_mac_sigmatel_GPIO_init}, {0x106b3200, "Intel iMac", VF_ALC88X_HACK, (char **) &alc883remap, 0, hdaudio_mac_realtek_GPIO_init}, // ALC885 + {0x106b4100, "Intel iMac", VF_ALC88X_HACK, (char **) &alc883remap, 0, hdaudio_mac_realtek_GPIO_init}, {0, "Unknown"} };

by **vanfanel** » Sun Oct 25, 2009 1:25 am

Thanks a lot for your suggestions, Celsium.
I have built the sources and added the line you told me, it was built & installed without problems or errors, but there's no sound.
The iMAC line is only present in the mercuril repository sources, so I cloned that repository, added the line, and followed the rest of instructions.

It has the same symptoms: I can see activity in the mixer bars in ossxmix, but there's no sound output.

I've executed the commands you asked me for, to see if there's some change.
ossinfo -v3 outputs this:

Code: Select all: Version info: OSS 4.2 (b 2000/200910250054) (0x00040100) OSS_HG Hg revision: changeset: 865:42340bbe9b59, tag: tip, date: Tue Oct 20 17:36:12 2009 +0300, summary: Fixed crash in the envy24 driver Platform: Linux/i686 2.6.30-gentoo-r6 #17 SMP PREEMPT Sat Oct 24 20:17:33 Local time zone must be set- (commodore) 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 nVidia HD Audio interrupts=12307 (12307) HD Audio controller nVidia HD Audio Vendor ID 0x10de0ac0 Subvendor ID 0x10decb79 Codec 0: ALC885 (0x10ec0885/0x106b4100 Intel iMac) 2: oss_usb0 USB audio core services MIDI devices (/dev/midi*) Mixer devices 0: High Definition Audio ALC885 (Mixer 0 of device object 1) Device file /dev/oss/oss_hdaudio0/mix0, Legacy device /dev/mixer0 Priority: 10 Caps: Device handle: PCIcb7910de-0000:00:08.0-mx01 Device priority: 10 Audio devices HD Audio play front /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 front Available for use Engine 2: 10/HD Audio play front (vmix) Available for use Engine 3: 11/HD Audio play front (vmix) Available for use Engine 4: 12/HD Audio play front (vmix) Available for use Engine 5: 13/HD Audio play front (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: PCIcb7910de-0000:00:08.0-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 rear /dev/oss/oss_hdaudio0/pcm1 (device index 1) Legacy device /dev/dsp1 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 1/HD Audio play rear 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: PCIcb7910de-0000:00:08.0-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 center/LFE /dev/oss/oss_hdaudio0/pcm2 (device index 2) Legacy device /dev/dsp2 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 2/HD Audio play center/LFE 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: PCIcb7910de-0000:00:08.0-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 side /dev/oss/oss_hdaudio0/pcm3 (device index 3) Legacy device /dev/dsp3 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 3/HD Audio play side 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: PCIcb7910de-0000:00:08.0-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 pcm4 /dev/oss/oss_hdaudio0/pcm4 (device index 4) Legacy device /dev/dsp4 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 4/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: PCIcb7910de-0000:00:08.0-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 spdif-out /dev/oss/oss_hdaudio0/spdout0 (device index 5) Legacy device /dev/dsp5 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 5/HD Audio play spdif-out 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: PCIcb7910de-0000:00:08.0-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): 44100 - 192000 (44100,48000,88200,96000,192000) HW Type: Not indicated. Minimum latency: Not indicated HD Audio rec mix /dev/oss/oss_hdaudio0/pcmin0 (device index 6) Legacy device /dev/dsp6 Caps: DUPLEX TRIGGER MMAP Modes: IN/OUT In engine 1: 6/HD Audio rec mix Available for use Engine 2: 10/HD Audio play front (vmix) Available for use Engine 3: 11/HD Audio play front (vmix) Available for use Engine 4: 12/HD Audio play front (vmix) Available for use Engine 5: 13/HD Audio play front (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: PCIcb7910de-0000:00:08.0-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): 44100 - 192000 (44100,48000,96000,192000) HW Type: Not indicated. Minimum latency: Not indicated HD Audio rec mix /dev/oss/oss_hdaudio0/pcmin1 (device index 7) Legacy device /dev/dsp7 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 7/HD Audio rec mix 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: PCIcb7910de-0000:00:08.0-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 mix /dev/oss/oss_hdaudio0/pcmin2 (device index 8) Legacy device /dev/dsp8 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 8/HD Audio rec mix 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: PCIcb7910de-0000:00:08.0-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 spdifin /dev/oss/oss_hdaudio0/spdin0 (device index 9) Legacy device /dev/dsp9 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 9/HD Audio rec spdifin 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: PCIcb7910de-0000:00:08.0-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/pcm0 /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

And ossmix -a outputs this:

Code: Select all: Selected mixer 0/High Definition Audio ALC885 Known controls are: jack.green.mode <front|rear|center/LFE|side|pcm4|input> (currently front) jack.green [<leftvol>:<rightvol>] (currently 29.9:29.9 dB) jack.green.mute ON|OFF (currently OFF) jack.blue.mode <front|rear|center/LFE|side|pcm4|input> (currently input) jack.blue [<leftvol>:<rightvol>] (currently 29.9:29.9 dB) jack.blue.mute ON|OFF (currently OFF) jack.int-speaker.mode <front|rear|center/LFE|side|pcm4|input> (currently input) jack.int-speaker [<leftvol>:<rightvol>] (currently 29.9:29.9 dB) jack.int-speaker.mute ON|OFF (currently OFF) record.mix.mute.int-speaker1 ON|OFF (currently OFF) record.mix.mute.headphone1 ON|OFF (currently OFF) record.mix.mute.linein1 ON|OFF (currently OFF) record.mix.mute.input-mix1 ON|OFF (currently OFF) record.mix1 [<leftvol>:<rightvol>] (currently 37.9:37.9 dB) record.mix.mute.int-speaker2 ON|OFF (currently OFF) record.mix.mute.headphone2 ON|OFF (currently OFF) record.mix.mute.linein2 ON|OFF (currently OFF) record.mix.mute.input-mix2 ON|OFF (currently OFF) record.mix2 [<leftvol>:<rightvol>] (currently 37.9:37.9 dB) record.mix.mute.int-speaker3 ON|OFF (currently OFF) record.mix.mute.headphone3 ON|OFF (currently OFF) record.mix.mute.linein3 ON|OFF (currently OFF) record.mix.mute.input-mix3 ON|OFF (currently OFF) record.mix3 [<leftvol>:<rightvol>] (currently 37.9:37.9 dB) misc.int-speaker [<leftvol>:<rightvol>] (currently 38.9:38.9 dB) misc.headphone [<leftvol>:<rightvol>] (currently 38.9:38.9 dB) misc.linein [<leftvol>:<rightvol>] (currently 38.9:38.9 dB) misc.front-mute ON|OFF (currently OFF) misc.input-mix-mute1 ON|OFF (currently OFF) misc.front1 [<leftvol>:<rightvol>] (currently 51.9:51.9 dB) misc.front2 <front|input-mix> (currently front) misc.rear-mute ON|OFF (currently ON) misc.input-mix-mute2 ON|OFF (currently OFF) misc.rear1 [<leftvol>:<rightvol>] (currently 51.9:51.9 dB) misc.rear2 <rear|input-mix> (currently rear) misc.center/lfe-mute ON|OFF (currently OFF) misc.input-mix-mute3 ON|OFF (currently OFF) misc.center/lfe1 [<leftvol>:<rightvol>] (currently 63.9:63.9 dB) misc.center/lfe2 <center/LFE|input-mix> (currently center/LFE) misc.side-mute ON|OFF (currently OFF) misc.input-mix-mute4 ON|OFF (currently OFF) misc.side1 [<leftvol>:<rightvol>] (currently 63.9:63.9 dB) misc.side2 <side|input-mix> (currently side) misc.pcm4-mute ON|OFF (currently OFF) misc.input-mix-mute5 ON|OFF (currently OFF) misc.pcm41 [<leftvol>:<rightvol>] (currently 51.9:51.9 dB) misc.pcm42 <pcm4|input-mix> (currently input-mix) vmix0-enable ON|OFF (currently ON) vmix0-rate <decimal value> (currently 48000) (Read-only) vmix0-channels <Stereo|Multich> (currently Stereo) vmix0-src <Fast|High|OFF> (currently Fast) vmix0-outvol <monovol> (currently 25.0 dB) vmix0-invol <monovol> (currently 25.0 dB) vmix0.pcm10 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm11 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm12 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm13 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)

Any other ideas, Celsium? I can try any changes you tell me in the code, rebuild and test sound again...

Thanks!

by **vanfanel** » Wed Oct 28, 2009 12:44 pm

Well, seeing no one is interested in making OSS4 work in modern macs, why should I care?
I'll stick with ALSA. I've tried contacting the developers via e-mail, too, but no response.

I even proposed them buying a license to get technical support, but all I got was silent.
The Unix audio standard? Hah

Open Sound System

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Re: Gentoo Linux, Macbook and MacMini (2009): no sound output

Re: Gentoo Linux, Macbook and MacMini (2009): no sound output

Re: Gentoo Linux, Macbook and MacMini (2009): no sound output

Re: Gentoo Linux, Macbook and MacMini (2009): no sound output

Re: Gentoo Linux, Macbook and MacMini (2009): no sound output

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