Hi everyone,
I am asking for help with the following problem:
I am trying to reproduce a song on the Raspberry Pi 4B using OpenBSD
-current and an external USB audio dongle, but I hear only/mostly noise.
The song is barely recognizable in the background and sometimes (rarely
and randomly) it is reproduced correctly (no noise) for a fraction of a
second, then noise again.
The USB DAC works fine on my amd64 laptop with openbsd-current. The
uaudio shows up in dmesg with the same parameters:
uaudio0: class v1, full-speed, sync, channels: 2 play, 1 rec, 8 ctls
(full dmesg below)
Reading the mailing lists I did the following:
I tried to set in UEFI both ACPI=ACPI+devicetree and ACPI=devicetree
while I left SD=eMMC2
I tried both USB3, USB2 and using an external (powered) USB hub.
I tried to change encoding with audioctl (I changed rate/blksz as well
but I am not an expert).
I tried to add the following, reboot and re-playing:
rcctl set sndiod flags -m play
I played the song as root (not sure whether it should help, it didn't).
I ran sndiod with debug output as:
rcctl stop sndiod
sndiod -ddd -a on
and I checked that audioctl->play.errors is zero while playing the song.
Below I list the output of sndio, audioctl during song reproduction and
dmesg.
I would be happy if anyone had suggestions that might help.
I am also interested in case there is a known-to-work-on-rpi USB audio
dongle that I can use.
Many thanks and best wishes
Luca
=======================================
Output of audioctl during reproduction
=======================================
name=uaudio0
mode=play,record
pause=0
active=1
nblks=16
blksz=480
rate=48000
encoding=s16le
play.channels=2
play.bytes=4151040
play.errors=0
record.channels=1
record.bytes=2075520
record.errors=0
(play.bytes increases while playing the song, play.errors always zero)
=======================================
Output sndiod -ddd -a on
(playing for a few secs, then Ctrl-C)
=======================================
snd0 pst=cfg.default: rec=0:1 play=0:1 vol=32768 dup
snd1 pst=cfg.default: rec=0:1 play=0:1 vol=32768 dup
snd2 pst=cfg.default: rec=0:1 play=0:1 vol=32768 dup
snd3 pst=cfg.default: rec=0:1 play=0:1 vol=32768 dup
helper(helper|ini): created
worker(worker|ini): created
listen(/tmp/sndio/sock0|ini): created
sock(sock|ini): created
helper: recv: cmd = 0, num = 0, idx = 0, mode = 3, fd = -1
helper: send: cmd = 3, num = 0, idx = 0, mode = 0, fd = 3
helper: recv: cmd = 2, num = 0, idx = 0, mode = 768, fd = -1
helper: send: cmd = 3, num = 0, idx = 0, mode = 0, fd = 3
sock,rmsg,widl: AUTH message
sock,rmsg,widl: HELLO message
sock,rmsg,widl: hello from <play>, mode = 1, ver 7
app/play0.level=127 at 1 -> slot_level:play0: added
snd0 pst=cfg: device requested
snd0 pst=cfg: trying rsnd/0
worker: send: cmd = 0, num = 0, idx = 0, mode = 3, fd = -1
worker: recv: cmd = 3, num = 0, idx = 0, mode = 0, fd = 6
worker: send: cmd = 2, num = 0, idx = 0, mode = 768, fd = -1
worker: recv: cmd = 3, num = 0, idx = 0, mode = 0, fd = 7
snd0 pst=cfg: using rsnd/0
sio(dev|ini): created
sioctl(mix|ini): created
0/output0.level=186 at 2 -> hw:0/0: added
0/output1.level=186 at 3 -> hw:0/1: added
0/output0.mute=0 at 4 -> hw:0/32: added
0/output1.mute=0 at 5 -> hw:0/33: added
0/input0.level=146 at 6 -> hw:0/64: added
0/input0.mute=0 at 7 -> hw:0/96: added
snd0 pst=cfg: 48000Hz, s16le, play 0:1, rec 0:0, 16 blocks of 480 frames
play0 vol=127,pst=ini: using snd0 pst=ini.default, mode = 1
sock(sock|ini): processed in 6370us
play0 vol=127,pst=ini,rmsg,widl: SETPAR message
play0 vol=127,pst=ini,rmsg,widl: GETPAR message
play0 vol=127,pst=ini,rmsg,widl: GETPAR message
play0 vol=127,pst=ini,rmsg,widl: START message
play0 vol=127,pst=ini: playing s16le -> s16le
play0 vol=127,pst=ini: allocated 7680/15360 fr buffers
play0 vol=127,pst=sta: 48000Hz, s16le, play 0:1, 16 blocks of 480 frames
play0 vol=127,pst=sta,rmsg,widl: STOP message
play0 vol=127,pst=sta: stopping
cmap: nch = 2, ostart = 0, onext = 0, istart = 0, inext = 0
snd0 pst=ini: device started
snd0 pst=run: started
play0 vol=127,pst=rdy: attached at -7680 + 0/480
play0 vol=127,pst=rdy: set weight: 32768/32768
play0 vol=127,pst=stp,rmsg,widl: building SETVOL message, vol = 127
play0 vol=127,pst=ini,rmsg,widl: stopped
play0 vol=127,pst=ini: drained
play0 vol=127,pst=ini,rmsg,widl: building STOP message
play0 vol=127,pst=ini,rmsg,widl: BYE message
play0 vol=127,pst=ini,rmsg,widl: closing
snd0 pst=run: device released
sock(sock|zom): destroyed
sock(sock|ini): created
sock,rmsg,widl: AUTH message
sock,rmsg,widl: HELLO message
sock,rmsg,widl: hello from <play>, mode = 1, ver 7
snd0 pst=run: device requested
play0 vol=127,pst=ini: using snd0 pst=run.default, mode = 1
play0 vol=127,pst=ini,rmsg,widl: SETPAR message
play0 vol=127,pst=ini,rmsg,widl: playback channels 0:1 -> 0:1
play0 vol=127,pst=ini,rmsg,widl: 44100Hz sample rate, 441 frame blocks
play0 vol=127,pst=ini,rmsg,widl: 8820 frame buffer
play0 vol=127,pst=ini,rmsg,widl: GETPAR message
play0 vol=127,pst=ini,rmsg,widl: GETPAR message
play0 vol=127,pst=ini,rmsg,widl: START message
play0 vol=127,pst=ini: playing s16le -> s16le
play0 vol=127,pst=ini: allocated 8820/15876 fr buffers
play0 vol=127,pst=sta: 44100Hz, s16le, play 0:1, 20 blocks of 441 frames
play0 vol=127,pst=sta,rmsg,widl: building SETVOL message, vol = 127
cmap: nch = 2, ostart = 0, onext = 0, istart = 0, inext = 0
resamp: 441/480
play0 vol=127,pst=rdy: attached at -7056 + 0/441
play0 vol=127,pst=rdy: set weight: 32768/32768
play0 vol=127,pst=run,rmsg,widl: STOP message
play0 vol=127,pst=run: stopping
play0 vol=127,pst=ini,rmsg,widl: stopped
play0 vol=127,pst=ini: drained
play0 vol=127,pst=ini,rmsg,widl: building STOP message
play0 vol=127,pst=ini,rmsg,widl: BYE message
play0 vol=127,pst=ini,rmsg,widl: closing
snd0 pst=run: device released
sock(sock|zom): destroyed
snd0 pst=run: device stopped
snd0 pst=run: stopped, load avg = 57781 / 2860591
snd0 pst=cfg: software master level control enabled
0/output.level=127 at 2 -> dev_master:0: added
snd0 pst=cfg: closed
sio(dev|zom): destroyed
sioctl(mix|zom): destroyed
snd0 pst=cfg: closing
0/output.level=127 at 2 -> dev_master:0: removed
sio(dev|zom): processed in 5741us
=======================================
End of sndiod -ddd -a on
=======================================
=======================================
RPi4 dmesg
=======================================
dera...@arm64.openbsd.org:/usr/src/sys/arch/arm64/compile/GENERIC.MP
real mem = 8418521088 (8028MB)
avail mem = 8127442944 (7750MB)
random: good seed from bootblocks
mainbus0 at root: Raspberry Pi 4 Model B Rev 1.4
psci0 at mainbus0: PSCI 1.1, SMCCC 1.2
cpu0 at mainbus0 mpidr 0: ARM Cortex-A72 r0p3
cpu0: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1
D-cache
cpu0: 1024KB 64b/line 16-way L2 cache
cpu0: CRC32,ASID16
cpu1 at mainbus0 mpidr 1: ARM Cortex-A72 r0p3
cpu1: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1
D-cache
cpu1: 1024KB 64b/line 16-way L2 cache
cpu1: CRC32,ASID16
cpu2 at mainbus0 mpidr 2: ARM Cortex-A72 r0p3
cpu2: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1
D-cache
cpu2: 1024KB 64b/line 16-way L2 cache
cpu2: CRC32,ASID16
cpu3 at mainbus0 mpidr 3: ARM Cortex-A72 r0p3
cpu3: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1
D-cache
cpu3: 1024KB 64b/line 16-way L2 cache
cpu3: CRC32,ASID16
efi0 at mainbus0: UEFI 2.7
efi0: https://github.com/pftf/RPi4 rev 0x10000
smbios0 at efi0: SMBIOS 3.3.0
smbios0: vendor https://github.com/pftf/RPi4 version "UEFI Firmware
v1.26" date 04/16/2021
smbios0: Raspberry Pi Foundation Raspberry Pi 4 Model B
apm0 at mainbus0
"system" at mainbus0 not configured
"axi" at mainbus0 not configured
simplebus0 at mainbus0: "soc"
bcmclock0 at simplebus0
bcmmbox0 at simplebus0
bcmgpio0 at simplebus0
bcmaux0 at simplebus0
ampintc0 at simplebus0 nirq 256, ncpu 4 ipi: 0, 1:
"interrupt-controller"
bcmtmon0 at simplebus0
bcmdmac0 at simplebus0: DMA0 DMA2 DMA4 DMA5 DMA6 DMA7 DMA8 DMA9
"timer" at simplebus0 not configured
pluart0 at simplebus0: console
com0 at simplebus0: ns16550, no working fifo
"local_intc" at simplebus0 not configured
bcmdog0 at simplebus0
bcmirng0 at simplebus0
"firmware" at simplebus0 not configured
"power" at simplebus0 not configured
"mailbox" at simplebus0 not configured
sdhc0 at simplebus0
sdhc0: SDHC 3.0, 250 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed
"gpiomem" at simplebus0 not configured
"fb" at simplebus0 not configured
"vcsm" at simplebus0 not configured
"clocks" at mainbus0 not configured
"phy" at mainbus0 not configured
"clk-27M" at mainbus0 not configured
"clk-108M" at mainbus0 not configured
simplebus1 at mainbus0: "emmc2bus"
sdhc1 at simplebus1
sdhc1: SDHC 3.0, 100 MHz base clock
sdmmc1 at sdhc1: 8-bit, sd high-speed, mmc high-speed, ddr52, dma
"arm-pmu" at mainbus0 not configured
agtimer0 at mainbus0: 54000 kHz
simplebus2 at mainbus0: "scb"
bcmpcie0 at simplebus2
pci0 at bcmpcie0
ppb0 at pci0 dev 0 function 0 "Broadcom BCM2711" rev 0x10
pci1 at ppb0 bus 1
xhci0 at pci1 dev 0 function 0 "VIA VL805 xHCI" rev 0x01: intx, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "VIA xHCI root hub" rev
3.00/1.00 addr 1
bse0 at simplebus2: address dc:a6:32:ed:1d:42
brgphy0 at bse0 phy 1: BCM54210E 10/100/1000baseT PHY, rev. 2
"dma" at simplebus2 not configured
"hevc-decoder" at simplebus2 not configured
"rpivid-local-intc" at simplebus2 not configured
"h264-decoder" at simplebus2 not configured
"vp9-decoder" at simplebus2 not configured
"leds" at mainbus0 not configured
"sd_io_1v8_reg" at mainbus0 not configured
"sd_vcc_reg" at mainbus0 not configured
"fixedregulator_3v3" at mainbus0 not configured
"fixedregulator_5v0" at mainbus0 not configured
simplebus3 at mainbus0: "v3dbus"
"bootloader" at mainbus0 not configured
dt: 443 probes
scsibus0 at sdmmc1: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <SD/MMC, SC64G, 0080> removable
sd0: 60906MB, 512 bytes/sector, 124735488 sectors
uhub1 at uhub0 port 1 configuration 1 interface 0 "VIA Labs USB2.0 Hub"
rev 2.10/4.21 addr 2
bwfm0 at sdmmc0 function 1
manufacturer 0x02d0, product 0xa9a6 at sdmmc0 function 2 not configured
manufacturer 0x02d0, product 0xa9a6 at sdmmc0 function 3 not configured
uaudio0 at uhub1 port 3 configuration 1 interface 1 "C-Media Electronics
Inc. USB Audio Device" rev 1.10/1.00 addr 3
uaudio0: class v1, full-speed, sync, channels: 2 play, 1 rec, 8 ctls
audio0 at uaudio0
uhidev0 at uhub1 port 3 configuration 1 interface 3 "C-Media Electronics
Inc. USB Audio Device" rev 1.10/1.00 addr 3
uhidev0: iclass 3/0
uhid0 at uhidev0: input=4, output=4, feature=0
umass0 at uhub0 port 2 configuration 1 interface 0 "TOSHIBA External USB
3.0" rev 3.00/3.22 addr 4
umass0: using SCSI over Bulk-Only
scsibus1 at umass0: 2 targets, initiator 0
sd1 at scsibus1 targ 1 lun 0: <TOSHIBA, External USB 3.0, 5438>
serial.0480090010106005627F
sd1: 3815447MB, 512 bytes/sector, 7814037164 sectors
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
sd2 at scsibus3 targ 1 lun 0: <OPENBSD, SR RAID 1, 006>
sd2: 1282723MB, 512 bytes/sector, 2627018022 sectors
root on sd0a (33593fb538f83769.a) swap on sd0b dump on sd0b
gpio0 at bcmgpio0: 58 pins
bwfm0: address dc:a6:32:ed:1d:43
WARNING: can't update clock chip time
