Hi there, hope, s.o. can provide a clue on why I have no sound on my iMac, which with OS-X has no issues with sound at all. Full dmesg at the end.
sndio is running: $ top | grep sndio 31429 _sndio 2 -20 480K 984K idle poll 0:01 0.00% sndiod I have /etc/mixerctl.conf with just three lines: outputs.master=255,255 outputs.spkr_mute=off outputs.spkr2_mute=off Output is not muted by audioctl as this shows: $ audioctl -f /dev/audio name=HD-Audio version=1.0 config=azalia0 encodings=slinear_le:16:2:1,slinear_le:20:4:1,slinear_le:24:4:1 properties=full_duplex,independent full_duplex=0 fullduplex=0 blocksize=9600 hiwat=6 lowat=4 output_muted=0 monitor_gain=0 mode=play play.rate=48000 play.channels=2 play.precision=16 play.bps=2 play.msb=1 play.encoding=slinear_le play.gain=255 play.balance=32 play.port=0x0 play.avail_ports=0x0 play.seek=0 play.samples=0 play.eof=0 play.pause=0 play.error=0 play.waiting=0 play.open=1 play.active=0 play.buffer_size=65536 play.block_size=9600 play.errors=0 record.rate=48000 record.channels=2 record.precision=16 record.bps=2 record.msb=1 record.encoding=slinear_le record.gain=125 record.balance=32 record.port=0x0 record.avail_ports=0x0 record.seek=0 record.samples=0 record.eof=0 record.pause=0 record.error=0 record.waiting=0 record.open=1 record.active=0 record.buffer_size=65536 record.block_size=9600 record.errors=0 Same with 'mixerctl -v' (as expected with given mixerctl.conf, see above): $ mixerctl -v record.adc-0:1_mute=off [ off on ] record.adc-0:1=125,125 record.adc-2:3_mute=off [ off on ] record.adc-2:3=125,125 record.adc-4:5_mute=off [ off on ] record.adc-4:5=125,125 record.dig-adc-0:1_sou=SPDIF-in [ SPDIF-in ] inputs.mix_source=beep,hp,line-in { mic beep hp line-in } inputs.mix_mic=120,120 inputs.mix_beep=120,120 inputs.mix_hp=120,120 inputs.mix_line-in=120,120 outputs.mix2=192,192 inputs.mix2_source=dac-0:1,mix { dac-0:1 mix } outputs.mix3=126,126 inputs.mix3_source=dac-2:3,mix { dac-2:3 mix } outputs.mix4=192,192 inputs.mix4_source=dac-4:5,mix { dac-4:5 mix } outputs.mix5=126,126 inputs.mix5_source=dac-6:7,mix { dac-6:7 mix } outputs.hp_source=mix2 [ mix2 mix3 mix4 mix5 mix9 ] outputs.hp_mute=off [ off on ] inputs.hp=85,85 outputs.hp_dir=output [ none output input input-vr0 input-vr50 input-vr80 input-vr100 ] outputs.hp_boost=off [ off on ] outputs.line-in_source=mix3 [ mix2 mix3 mix4 mix5 mix9 ] outputs.line-in_mute=off [ off on ] inputs.line-in=85,85 outputs.line-in_dir=input [ none output input input-vr0 input-vr50 input-vr80 input-vr100 ] outputs.line-in_boost=off [ off on ] outputs.spkr_source=mix4 [ mix2 mix3 mix4 mix5 mix9 ] outputs.spkr_mute=off [ off on ] outputs.spkr_dir=output [ none output input input-vr0 input-vr50 input-vr80 input-vr100 ] outputs.spkr_boost=off [ off on ] inputs.mic=85,85 outputs.mic_dir=input-vr80 [ none output input input-vr0 input-vr50 input-vr80 input-vr100 ] outputs.spkr2_source=mix4 [ mix2 mix3 mix4 mix5 mix9 ] outputs.spkr2_mute=off [ off on ] outputs.spkr2_dir=output [ none output input input-vr0 input-vr50 input-vr80 input-vr100 ] outputs.spkr2_boost=off [ off on ] outputs.SPDIF_source=dig-dac-0:1 [ dig-dac-0:1 ] record.adc-4:5_source=mic,beep,hp,line-in,mix { mic beep hp line-in mix } record.adc-2:3_source=mic,beep,hp,line-in,mix { mic beep hp line-in mix } record.adc-0:1_source=mic,beep,hp,line-in,mix { mic beep hp line-in mix } outputs.mix9=126,126 inputs.mix9_source=dac-8:9,mix { dac-8:9 mix } outputs.hp_sense=plugged [ unplugged plugged ] outputs.line-in_sense=plugged [ unplugged plugged ] outputs.spkr2_muters=hp,line-in { hp line-in } outputs.master=255,255 outputs.master.mute=off [ off on ] outputs.master.slaves=mix2,mix4,hp,spkr,spkr2 { mix2 mix3 mix4 mix5 hp line-in spkr mic spkr2 mix9 } record.volume=125,125 record.volume.mute=off [ off on ] record.volume.slaves=adc-0:1,adc-2:3,adc-4:5 { adc-0:1 adc-2:3 adc-4:5 hp line-in spkr mic spkr2 } outputs.mode=analog [ analog digital ] record.mode=analog [ analog digital ] While 'man azalia' tells me that NVIDIA MCP79 is supported dmesg tells me that "NVIDIA MCP79 Memory" is 'not configured' - is this relevant here? $ dmesg | grep MCP79 pchb0 at pci0 dev 0 function 0 "NVIDIA MCP79 Host" rev 0xb1 "NVIDIA MCP79 Memory" rev 0xb1 at pci0 dev 0 function 1 not configured pcib0 at pci0 dev 3 function 0 "NVIDIA MCP79 ISA" rev 0xb2 "NVIDIA MCP79 Memory" rev 0xb1 at pci0 dev 3 function 1 not configured nviic0 at pci0 dev 3 function 2 "NVIDIA MCP79 SMBus" rev 0xb1 "NVIDIA MCP79 Memory" rev 0xb1 at pci0 dev 3 function 3 not configured "NVIDIA MCP79 Co-processor" rev 0xb1 at pci0 dev 3 function 5 not configured ohci0 at pci0 dev 4 function 0 "NVIDIA MCP79 USB" rev 0xb1: apic 1 int 11, version 1.0, legacy support ehci0 at pci0 dev 4 function 1 "NVIDIA MCP79 USB" rev 0xb1: apic 1 int 10 ohci1 at pci0 dev 6 function 0 "NVIDIA MCP79 USB" rev 0xb1: apic 1 int 7, version 1.0, legacy support ehci1 at pci0 dev 6 function 1 "NVIDIA MCP79 USB" rev 0xb1: apic 1 int 5 azalia0 at pci0 dev 8 function 0 "NVIDIA MCP79 HD Audio" rev 0xb1: apic 1 int 15 ppb0 at pci0 dev 9 function 0 "NVIDIA MCP79 PCIE" rev 0xb1 nfe0 at pci0 dev 10 function 0 "NVIDIA MCP79 LAN" rev 0xb1: apic 1 int 14, address 00:26:b0:d9:00:c6 pciide0 at pci0 dev 11 function 0 "NVIDIA MCP79 SATA" rev 0xb1: DMA ppb1 at pci0 dev 12 function 0 "NVIDIA MCP79 PCIE" rev 0xb1: msi ppb2 at pci0 dev 16 function 0 "NVIDIA MCP79 PCIE" rev 0xb1 ppb3 at pci0 dev 21 function 0 "NVIDIA MCP79 PCIE" rev 0xb1: msi ppb4 at pci0 dev 22 function 0 "NVIDIA MCP79 PCIE" rev 0xb1: msi At this point I am lost - I have no clue where to investigate from here on. Any help is appreciated! I shall not finish without a big THANK YOU to the devs for this fine OS they share with the 'rest of the world'! All the best, STEFAN OpenBSD 5.4-current (GENERIC.MP) #53: Sun Sep 8 15:28:55 MDT 2013 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP RTC BIOS diagnostic error f7<clock_battery,ROM_cksum,config_unit,memory_size,invalid_time> real mem = 8279707648 (7896MB) avail mem = 8051195904 (7678MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xe0000 (43 entries) bios0: vendor Apple Inc. version "IM91.88Z.008D.B08.0904271717" date 04/27/09 bios0: Apple Inc. iMac9,1 acpi0 at bios0: rev 2 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP HPET APIC MCFG ASF! SBST ECDT SSDT SSDT SSDT acpi0: wakeup devices EC__(S3) OHC1(S3) EHC1(S3) OHC2(S3) EHC2(S3) GIGE(S5) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpihpet0 at acpi0: 25000000 Hz acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM)2 Duo CPU E8135 @ 2.66GHz, 1592.22 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,XSAVE,NXE,LONG,LAHF,PERF cpu0: 6MB 64b/line 16-way L2 cache cpu0: smt 0, core 0, package 0 cpu0: apic clock running at 265MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Core(TM)2 Duo CPU E8135 @ 2.66GHz, 1592.01 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,XSAVE,NXE,LONG,LAHF,PERF cpu1: 6MB 64b/line 16-way L2 cache cpu1: smt 0, core 1, package 0 ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 11, 24 pins ioapic0: misconfigured as apic 0, remapped to apid 1 acpimcfg0 at acpi0 addr 0xf0000000, bus 0-255 acpiec0 at acpi0 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 3 (IXVE) acpicpu0 at acpi0: C3, C2, C1, PSS acpicpu1 at acpi0: C3, C2, C1, PSS acpibtn0 at acpi0: PWRB acpibtn1 at acpi0: SLPB cpu0: Enhanced SpeedStep 1592 MHz: speeds: 2660, 2394, 2128, 1862, 1596 MHz memory map conflict 0xffc00000/0x400000 pci0 at mainbus0 bus 0 0:3:5: mem address conflict 0xd3500000/0x80000 pchb0 at pci0 dev 0 function 0 "NVIDIA MCP79 Host" rev 0xb1 "NVIDIA MCP79 Memory" rev 0xb1 at pci0 dev 0 function 1 not configured pcib0 at pci0 dev 3 function 0 "NVIDIA MCP79 ISA" rev 0xb2 "NVIDIA MCP79 Memory" rev 0xb1 at pci0 dev 3 function 1 not configured nviic0 at pci0 dev 3 function 2 "NVIDIA MCP79 SMBus" rev 0xb1 iic0 at nviic0 spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-8500 SO-DIMM spdmem1 at iic0 addr 0x51: 4GB DDR3 SDRAM PC3-8500 SO-DIMM iic1 at nviic0 "NVIDIA MCP79 Memory" rev 0xb1 at pci0 dev 3 function 3 not configured vendor "NVIDIA", unknown product 0x0a98 (class memory subclass RAM, rev 0xb1) at pci0 dev 3 function 4 not configured "NVIDIA MCP79 Co-processor" rev 0xb1 at pci0 dev 3 function 5 not configured ohci0 at pci0 dev 4 function 0 "NVIDIA MCP79 USB" rev 0xb1: apic 1 int 11, version 1.0, legacy support ehci0 at pci0 dev 4 function 1 "NVIDIA MCP79 USB" rev 0xb1: apic 1 int 10 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "NVIDIA EHCI root hub" rev 2.00/1.00 addr 1 ohci1 at pci0 dev 6 function 0 "NVIDIA MCP79 USB" rev 0xb1: apic 1 int 7, version 1.0, legacy support ehci1 at pci0 dev 6 function 1 "NVIDIA MCP79 USB" rev 0xb1: apic 1 int 5 usb1 at ehci1: USB revision 2.0 uhub1 at usb1 "NVIDIA EHCI root hub" rev 2.00/1.00 addr 1 azalia0 at pci0 dev 8 function 0 "NVIDIA MCP79 HD Audio" rev 0xb1: apic 1 int 15 azalia0: codecs: Realtek ALC885 audio0 at azalia0 ppb0 at pci0 dev 9 function 0 "NVIDIA MCP79 PCIE" rev 0xb1 pci1 at ppb0 bus 1 nfe0 at pci0 dev 10 function 0 "NVIDIA MCP79 LAN" rev 0xb1: apic 1 int 14, address 00:26:b0:d9:00:c6 rgephy0 at nfe0 phy 1: RTL8169S/8110S PHY, rev. 2 pciide0 at pci0 dev 11 function 0 "NVIDIA MCP79 SATA" rev 0xb1: DMA pciide0: using apic 1 int 11 for native-PCI interrupt wd0 at pciide0 channel 0 drive 0: <Hitachi HDT721064SLA360> wd0: 16-sector PIO, LBA48, 610480MB, 1250263728 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 6 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <OPTIARC, DVD RW AD-5670S, 2AHH> ATAPI 5/cdrom removable cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 5 ppb1 at pci0 dev 12 function 0 "NVIDIA MCP79 PCIE" rev 0xb1: msi pci2 at ppb1 bus 2 ppb2 at pci0 dev 16 function 0 "NVIDIA MCP79 PCIE" rev 0xb1 pci3 at ppb2 bus 3 vga1 at pci3 dev 0 function 0 vendor "NVIDIA", unknown product 0x0867 rev 0xb1 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) ppb3 at pci0 dev 21 function 0 "NVIDIA MCP79 PCIE" rev 0xb1: msi pci4 at ppb3 bus 4 "Broadcom BCM4322" rev 0x01 at pci4 dev 0 function 0 not configured ppb4 at pci0 dev 22 function 0 "NVIDIA MCP79 PCIE" rev 0xb1: msi pci5 at ppb4 bus 5 "AT&T/Lucent FW643 1394" rev 0x07 at pci5 dev 0 function 0 not configured isa0 at pcib0 isadma0 at isa0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 usb2 at ohci0: USB revision 1.0 uhub2 at usb2 "NVIDIA OHCI root hub" rev 1.00/1.00 addr 1 usb3 at ohci1: USB revision 1.0 uhub3 at usb3 "NVIDIA OHCI root hub" rev 1.00/1.00 addr 1 mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges umass0 at uhub0 port 1 configuration 1 interface 0 "Intenso External USB 3.0" rev 2.10/2.05 addr 2 umass0: using SCSI over Bulk-Only scsibus1 at umass0: 2 targets, initiator 0 sd0 at scsibus1 targ 1 lun 0: <Intenso, External USB 3.0, 0205> SCSI4 0/direct fixed serial.152d0539201204262146 sd0: 1907729MB, 512 bytes/sector, 3907028992 sectors umass1 at uhub0 port 3 configuration 1 interface 0 "TOSHIBA STOR.E PARTNER" rev 2.10/1.00 addr 3 umass1: using SCSI over Bulk-Only scsibus2 at umass1: 2 targets, initiator 0 sd1 at scsibus2 targ 1 lun 0: <TOSHIBA, STOR.E PARTNER, GU00> SCSI3 0/direct fixed serial.0480b0012011121901AB sd1: 953869MB, 512 bytes/sector, 1953525168 sectors uvideo0 at uhub0 port 4 configuration 1 interface 0 "Apple Inc. Built-in iSight" rev 2.00/2.19 addr 4 video0 at uvideo0 ugen0 at uhub0 port 4 configuration 1 "Apple Inc. Built-in iSight" rev 2.00/2.19 addr 4 uhub4 at uhub1 port 4 "Genesys Logic USB2.0 Hub" rev 2.00/9.01 addr 2 umass2 at uhub4 port 1 configuration 1 interface 0 "Toshiba External USB 3.0" rev 2.10/0.01 addr 3 umass2: using SCSI over Bulk-Only scsibus3 at umass2: 2 targets, initiator 0 sd2 at scsibus3 targ 1 lun 0: <TOSHIBA, External USB 3.0, 0001> SCSI4 0/direct fixed serial.0480a006011110451990 sd2: 953869MB, 512 bytes/sector, 1953525168 sectors uhub5 at uhub4 port 4 "Genesys Logic USB2.0 Hub" rev 2.00/9.01 addr 4 umass3 at uhub5 port 2 configuration 1 interface 0 "TOSHIBA STOR.E ALU 2S" rev 2.10/0.01 addr 5 umass3: using SCSI over Bulk-Only scsibus4 at umass3: 2 targets, initiator 0 sd3 at scsibus4 targ 1 lun 0: <TOSHIBA, STOR.E ALU 2S, 0001> SCSI4 0/direct fixed serial.09300b1a120705130071 sd3: 953869MB, 512 bytes/sector, 1953525168 sectors uhidev0 at uhub2 port 5 configuration 1 interface 0 "Apple Computer, Inc. IR Receiver" rev 2.00/0.16 addr 2 uhidev0: iclass 3/0, 38 report ids uhid0 at uhidev0 reportid 36: input=4, output=0, feature=0 uhid1 at uhidev0 reportid 37: input=4, output=0, feature=0 uhid2 at uhidev0 reportid 38: input=4, output=0, feature=0 uhub6 at uhub3 port 1 "Apple Inc. BRCM2046 Hub" rev 2.00/1.00 addr 2 ugen1 at uhub6 port 1 "Apple Inc. Bluetooth USB Host Controller" rev 2.00/1.80 addr 3 uhidev1 at uhub6 port 2 configuration 1 interface 0 "Apple Computer product 0x820a" rev 2.00/1.00 addr 4 uhidev1: iclass 3/1, 1 report id ukbd0 at uhidev1 reportid 1: 8 variable keys, 6 key codes wskbd0 at ukbd0: console keyboard, using wsdisplay0 uhidev2 at uhub6 port 3 configuration 1 interface 0 "Apple Computer product 0x820b" rev 2.00/1.00 addr 5 uhidev2: iclass 3/1, 2 report ids ums0 at uhidev2 reportid 2: 3 buttons wsmouse0 at ums0 mux 0 vscsi0 at root scsibus5 at vscsi0: 256 targets softraid0 at root scsibus6 at softraid0: 256 targets root on wd0a (8ee3d2e3a2b38ea9.a) swap on wd0b dump on wd0b uhidev_intr: bad repid 19 uhidev_intr: bad repid 19 uhidev_intr: bad repid 19 uhidev_intr: bad repid 19