Open Sound System

by **spl** » Tue Jul 31, 2007 12:41 am

I'm having trouble getting OSS to work on a HP Pavilion DV6000 laptop. This is an AMD Touron64x2 system.

Code: Select all: FreeBSD <obscured> 6.2-RELEASE-p6 FreeBSD 6.2-RELEASE-p6 #2: Sat Jul 28 19:00:27 PDT 2007 <obscured>:/usr/obj/usr/src/sys/SMP amd64

When I try to play an MP3 file with xine or other player, I get only about the first quarter to half second of the file played over and over again.

dmesg shows:

Code: Select all: hdaudio: Pin widget 16 is EAPD capable. hdaudio0: <nVidia HD Audio> mem 0xb0000000-0xb0003fff irq 11 at device 16.1 on pci0 hdaudio: Ignored request for 5 channels hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0. hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0. hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0. hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0. hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0. hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0. hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0. hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0. hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0.

and ossinfo -v shows

Code: Select all: ossinfo -v Version info: OSS 4.0 (b070717/200707310009) (0x00040002) CDDL Platform: FreeBSD/amd64 6.2-RELEASE-p6 FreeBSD 6.2-RELEASE-p6 #2: Sat Jul 28 19:00:27 PDT 2007 <obscured>:/usr/obj/usr/src/sys/SMP Number of audio devices: 7 Number of audio engines: 7 Number of MIDI devices: 0 Number of mixer devices: 1 Device objects 0: hdaudio0 nVidia HD Audio 1: vmix0 OSS transparent virtual support MIDI devices (/dev/midi*) Mixer devices (/dev/mixer*) 0: nVidia HD Audio SmartAMC HD2 (Mixer 0 of device object 0) Device file /dev/oss/hdaudio0/mix0, Legacy device /dev/mixer0 Priority: 10 Caps: Audio devices /dev/oss/hdaudio0/pcm0 nVidia HD Audio pcm output (device index 0) Legacy device /dev/dsp0 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: Available for use Engine 2: Available for use Engine 3: Available for use Engine 4: Available for use Engine 5: Available for use /dev/oss/hdaudio0/spdout0 nVidia HD Audio spdifout output (device index 1) Legacy device /dev/dsp1 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: Available for use /dev/oss/hdaudio0/pcmin0 nVidia HD Audio rec input (device index 2) Legacy device /dev/dsp2 Caps: TRIGGER MMAP Modes: INPUT In engine 1: Available for use Engine 2: Available for use Engine 3: Available for use Engine 4: Available for use Engine 5: Available for use /dev/oss/vmix0/pcm0 nVidia HD Audio pcm output (VMIX0) (device index 3) Legacy device /dev/dsp3 Caps: DUPLEX TRIGGER MMAP VIRTUAL Modes: IN/OUT Engine 1: Available for use Engine 2: Available for use Engine 3: Available for use Engine 4: Available for use /dev/oss/vmix0/pcm1 nVidia HD Audio pcm output (VMIX0) (device index 4) Legacy device /dev/dsp4 Caps: DUPLEX TRIGGER MMAP VIRTUAL SHADOW HIDDEN Modes: IN/OUT Engine 1: Available for use Engine 2: Available for use Engine 3: Available for use /dev/oss/vmix0/pcm2 nVidia HD Audio pcm output (VMIX0) (device index 5) Legacy device /dev/dsp5 Caps: DUPLEX TRIGGER MMAP VIRTUAL SHADOW HIDDEN Modes: IN/OUT Engine 1: Available for use Engine 2: Available for use /dev/oss/vmix0/pcm3 nVidia HD Audio pcm output (VMIX0) (device index 6) Legacy device /dev/dsp6 Caps: DUPLEX TRIGGER MMAP VIRTUAL SHADOW HIDDEN Modes: IN/OUT Engine 1: Available for use

When I run osstest, I get three short beeps and it prints out

Code: Select all: osstest Sound subsystem and version: OSS 4.0 (b070717/200707310009) (0x00040002) Platform: FreeBSD/amd64 6.2-RELEASE-p6 FreeBSD 6.2-RELEASE-p6 #2: Sat Jul 28 19:00:27 PDT 2007 <obscured>:/usr/obj/usr/src/sys/SMP *** Scanning sound adapter #-1 *** /dev/oss/hdaudio0/pcm0 (audio engine 0): nVidia HD Audio pcm output - Performing audio playback test... <left> Device returned error: Input/output error /dev/oss/hdaudio0/spdout0 (audio engine 1): nVidia HD Audio spdifout output - Performing audio playback test... <left> Device returned error: Input/output error /dev/oss/hdaudio0/pcmin0 (audio engine 2): nVidia HD Audio rec input - Skipping input only device *** Scanning sound adapter #0 *** /dev/oss/vmix0/pcm0 (audio engine 3): nVidia HD Audio pcm output (VMIX0) - Performing audio playback test... <left> Device returned error: Input/output error /dev/oss/vmix0/pcm1 (audio engine 4): nVidia HD Audio pcm output (VMIX0) - Skipping device (card already tested) /dev/oss/vmix0/pcm2 (audio engine 5): nVidia HD Audio pcm output (VMIX0) - Skipping device (card already tested) /dev/oss/vmix0/pcm3 (audio engine 6): nVidia HD Audio pcm output (VMIX0) - Skipping device (card already tested) *** Some errors were detected during the tests ***

I've tried the default install from the ports collection and 1005rc1 with identical results.

This is a "brand new" reconditioned machine.

This is my first encounter with OSS but I'm fairly experienced with FreeBSD. Any suggestions?

by **fli** » Tue Jul 31, 2007 6:46 pm

I was just about to do a post about this, but as it seems to be exactly the same problem as I have, I'll simply reply here instead.

I have the same type of sound card (HDA) as the original poster and I'm experiencing exactly the same symptoms as well. The card works with snd_hda(4) so I guess it's not broken hardware (snd_hda doesn't do spdifout and surround, thats why I want oss).

Here is the output from ossinfo (I've tried oss-v4.1test0-070717-src-cddl.tar.bz2 as well but with no luck).

Code: Select all: Version info: OSS 4.0 (build 070707/200707311333/C^B (0x00040002) Platform: FreeBSD/i386 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Tue Jul 31 00:51:41 CEST 2007 root@nexus:/usr/obj/usr/src/sys/NEXUS Number of audio devices: 14 Number of audio engines: 14 Number of MIDI devices: 0 Number of mixer devices: 1 Device objects 0: hdaudio0 Intel HD Audio 1: vmix0 OSS transparent virtual support MIDI devices (/dev/midi*) Mixer devices (/dev/mixer*) 0: Intel HD Audio STAC9271D (Mixer 0 of device object 0) Device file /dev/oss/hdaudio0/mix0, Legacy device /dev/mixer0 Priority: 10 Caps: Device handle: OSS-PCI-mx01 Device priority: 10 Audio devices /dev/oss/hdaudio0/pcm0 Intel HD Audio pcm1 output (device index 0) Legacy device /dev/dsp0 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 0/Intel HD Audio pcm1 output Available for use Engine 2: 10/Intel HD Audio pcm1 output (VMIX0) Available for use Engine 3: 11/Intel HD Audio pcm1 output (VMIX0) Available for use Engine 4: 12/Intel HD Audio pcm1 output (VMIX0) Available for use Engine 5: 13/Intel HD Audio pcm1 output (VMIX0) 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: OSS-PCI-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 (44100,48000,88200,96000,176400,192000) HW Type: Not indicated. Minimum latency: Not indicated /dev/oss/hdaudio0/pcm1 Intel HD Audio pcm2 output (device index 1) Legacy device /dev/dsp1 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 1/Intel HD Audio pcm2 output 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: OSS-PCI-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 (44100,48000,88200,96000,176400,192000) HW Type: Not indicated. Minimum latency: Not indicated /dev/oss/hdaudio0/pcm2 Intel HD Audio pcm3 output (device index 2) Legacy device /dev/dsp2 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 2/Intel HD Audio pcm3 output 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: OSS-PCI-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 (44100,48000,88200,96000,176400,192000) HW Type: Not indicated. Minimum latency: Not indicated /dev/oss/hdaudio0/pcm3 Intel HD Audio pcm4 output (device index 3) Legacy device /dev/dsp3 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 3/Intel HD Audio pcm4 output 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: OSS-PCI-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 (44100,48000,88200,96000,176400,192000) HW Type: Not indicated. Minimum latency: Not indicated /dev/oss/hdaudio0/pcm4 Intel HD Audio pcm5 output (device index 4) Legacy device /dev/dsp4 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 4/Intel HD Audio pcm5 output 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: OSS-PCI-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 (44100,48000,88200,96000,176400,192000) HW Type: Not indicated. Minimum latency: Not indicated /dev/oss/hdaudio0/spdout0 Intel HD Audio spdifout output (device index 5) Legacy device /dev/dsp5 Caps: TRIGGER MMAP Modes: OUTPUT Out engine 1: 5/Intel HD Audio spdifout output 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: OSS-PCI-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 (44100,48000,88200,96000,176400,192000) HW Type: Not indicated. Minimum latency: Not indicated /dev/oss/hdaudio0/pcmin0 Intel HD Audio rec1 input (device index 6) Legacy device /dev/dsp6 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 6/Intel HD Audio rec1 input Available for use Engine 2: 10/Intel HD Audio pcm1 output (VMIX0) Available for use Engine 3: 11/Intel HD Audio pcm1 output (VMIX0) Available for use Engine 4: 12/Intel HD Audio pcm1 output (VMIX0) Available for use Engine 5: 13/Intel HD Audio pcm1 output (VMIX0) 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: OSS-PCI-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 (44100,48000,88200,96000,176400,192000) HW Type: Not indicated. Minimum latency: Not indicated /dev/oss/hdaudio0/pcmin1 Intel HD Audio rec2 input (device index 7) Legacy device /dev/dsp7 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 7/Intel HD Audio rec2 input 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: OSS-PCI-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 (44100,48000,88200,96000,176400,192000) HW Type: Not indicated. Minimum latency: Not indicated /dev/oss/hdaudio0/pcmin2 Intel HD Audio rec3 input (device index 8) Legacy device /dev/dsp8 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 8/Intel HD Audio rec3 input 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: OSS-PCI-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 (44100,48000,88200,96000,176400,192000) HW Type: Not indicated. Minimum latency: Not indicated /dev/oss/hdaudio0/spdin0 Intel HD Audio spdifin input (device index 9) Legacy device /dev/dsp9 Caps: TRIGGER MMAP Modes: INPUT In engine 1: 9/Intel HD Audio spdifin input 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: OSS-PCI-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 - 96000 (44100,48000,96000) HW Type: Not indicated. Minimum latency: Not indicated

I did some debugging and it appears that find_output_space() (framework/audio/audio.c) fails to get free buffer space the second time around, first attempt does always succeeds (hence, one hears the "first quarter to half second of the file played").
More precisely it's oss_sleep() (kernel/OS/FreeBSD/os_freebsd.c), called from find_output_space(), that returns returns 0 because the timeout expired and it didn't succeed in getting a buffer within the timeout.

I added a printf() in oss_do_timing(). Here is a debug printout of a failure

Code: Select all: 483697909/1: =-=-=- Audio device 0 (Intel HD Audio pcm1 output) opened, ode 2 -=-=-= 483697911/2: Opened by PID: 9411 483697912/1: Opening process name: osstest 483697914/2: oss_audio_ioctl(0, SNDCTL_DSP_GETCAPS) 483697915/1: oss_audio_ioctl(0, SNDCTL_DSP_SETFMT, *0x00000010) 483697917/2: oss_audio_ioctl(0, SNDCTL_DSP_CHANNELS, *2) 483697918/1: Set channels 2 483697919/1: oss_audio_ioctl(0, SNDCTL_DSP_SPEED, *48000) 483697959/40: --- audio_write(0, 1351904) --- 483697960/1: No format conversions needed 483697961/1: setup_fragments(0, dir=2) 483697962/1: Max intrate 100 -> min buffer 1920 483697963/1: fragsz=2048, nfrags=32483697965/2: Prepare output dev=0, fragsize=2048, nfrags=32, bytes_in_use=65536/65536 483698075/110: 1351904/1351904 bytes to go 483698077/2: Got output buffer, offs 0/65536, len 65536 483698078/1: Move wrpointer, len 65536 483698079/1: User=65536 483698080/1: Byte=0 483698081/1: Fill=65536 483698082/1: Launch output called 483698083/1: Launch_output calling output_block 483698084/1: Launch_output calling trigger 483698086/2: 1286368/1351904 bytes to go 483698087/1: Sleep(0) 483699138/1051: Sleep(0) (out) timed out hdaudio: Output timed out on /dev/oss/hdaudio0/pcm0. 483699145/7: =-=-=- Closing audio engine 0 -=-=-=

I haven't figured out where and how the buffers are allocated (DMA?), but hopefully somebody with a little more knowledge of OSS internals can provide a hint.

by **spl** » Tue Jul 31, 2007 9:48 pm

I couldn't even get snd_hda to work. Did you have to do anything special to make it work?

I notice that you're on 7.0-CURRENT. Maybe I should upgrade?

by **spl** » Wed Aug 01, 2007 4:51 am

A followup: I attempted to install 7.0-CURRENT and met with no success -- I got it to boot once and then it hung. Subsequent tries caused a general protection fault and a debugger prompt.

I ended up falling back to 6.2.

Oh, well.

I'm not absolutely wedded to FreeBSD for this machine. Does anyone know if any of the Linux distributions work? I tried Ubuntu and had all sorts of problems. I'm just about to write this machine off as a total loss.

by **fli** » Wed Aug 01, 2007 10:01 am

From some more code reading I know believe that the problem is within hdaintr() (hdaudio.c) or in the call path to oss_wakeup()

hdaintr() (hdaudio.c)
oss_audio_outputintr() (macro)
audio_outputintr() (audio.c)
do_outputintr() (audio.c)
oss_wakeup() (os_freebsd.c)

I think that somewhere along this path something goes wrong or the interrupt doesn't even fire at all (or the problem is something completely different

).

I haven't done any practical testing yet to verify my claims, need to take care of some real-life work for a while.

Oh, and I tried OSS on another machine running -current, that machine has an old ICH card and it works perfectly so it's really a hdaudio problem.

by **spl** » Thu Aug 02, 2007 4:42 pm

A final followup: upgrading FreeBSD to 6.2-STABLE (from 6.2-RELEASE) allowed me to use <b>snd_hda</b>, which is fine with me at this juncture, since I really don't care about any "advanced features" right now -- at least the thing makes noise.

by **fli** » Tue Aug 21, 2007 3:08 pm

Look at it a bit more today, in the cases when audio is broken the interrupt isn't fired and hdaintr() isn't executed, I haven't really figured out why, maybe somebody can help?

I have timing outputs from a broken case and a non-broken case if somebody is interested.
They differ a bit during driver attach where the broken case has a bunch of

Code: Select all: -2006633358/0: Inputintr(6) -2006633358/0: Wake up (in)

don't know if it's related though.

Open Sound System

Broken audio on FreeBSD 6.2

Broken audio on FreeBSD 6.2

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