Update:
on my Odroid-XU4 with Fedora 31 armv7hl KDE I've plugged in a USB DAC:
Apr 13 14:24:54 odroid kernel: usb 2-1: new full-speed USB device number
9 using exynos-ohci
Apr 13 14:24:55 odroid kernel: usb 2-1: New USB device found,
idVendor=08bb, idProduct=2704, bcdDevice= 1.00
Apr 13 14:24:55 odroid kernel: usb 2-1: New USB device strings: Mfr=1,
Product=2, SerialNumber=0
Apr 13 14:24:55 odroid kernel: usb 2-1: Product: USB Audio DAC
Apr 13 14:24:55 odroid kernel: usb 2-1: Manufacturer: Burr-Brown from TI
Apr 13 14:24:55 odroid kernel: input: Burr-Brown from TI
USB Audio DAC as
/devices/platform/soc/12120000.usb/usb2/2-1/2-1:1.2/0003:08BB:2704.0008/input/input11
Apr 13 14:24:55 odroid kernel: hid-generic 0003:08BB:2704.0008:
input,hidraw0: USB HID v1.00 Device [Burr-Brown from TI
USB Audio DAC ] on usb-12120000.usb-1/input2
Apr 13 14:24:55 odroid mtp-probe[20089]: checking bus 2, device 9:
"/sys/devices/platform/soc/12120000.usb/usb2/2-1"
Apr 13 14:24:55 odroid mtp-probe[20089]: bus: 2, device: 9 was not an
MTP device
Apr 13 14:24:55 odroid systemd[20029]: Reached target Sound Card.
Apr 13 14:24:55 odroid systemd[3559]: Reached target Sound Card.
Apr 13 14:24:55 odroid systemd[18629]: Reached target Sound Card.
Apr 13 14:24:55 odroid systemd[1]: Condition check resulted in
Save/Restore Sound Card State being skipped.
Apr 13 14:24:55 odroid systemd[1]: Reached target Sound Card.
Apr 13 14:24:55 odroid mtp-probe[20100]: checking bus 2, device 9:
"/sys/devices/platform/soc/12120000.usb/usb2/2-1"
Apr 13 14:24:55 odroid mtp-probe[20100]: bus: 2, device: 9 was not an
MTP device
Apr 13 14:24:55 odroid rtkit-daemon[769]: Successfully made thread 20103
of process 3571 (/usr/bin/pulseaudio) owned by '1003' RT at priority 5.
Apr 13 14:24:56 odroid plasmashell[3835]: org.kde.plasma.pulseaudio: No
object for name "auto_null"
Apr 13 14:24:56 odroid plasmashell[3835]: org.kde.plasma.pulseaudio: No
object for name "auto_null.monitor"
Apr 13 14:24:56 odroid plasmashell[3835]: org.kde.plasma.pulseaudio: No
object for name "auto_null"
Apr 13 14:24:56 odroid plasmashell[3835]: org.kde.plasma.pulseaudio: No
object for name "auto_null.monitor"
Apr 13 14:24:56 odroid plasmashell[3835]: org.kde.plasma.pulseaudio: No
object for name
"alsa_output.usb-Burr-Brown_from_TI_USB_Audio_DAC-00.analog-stereo.monitor"
If i take this USB-DAC to the Raspi4:
no reaction or response on journal even I load all kernel modules:
lsmod | grep snd
snd 122880 17
snd_seq,snd_seq_device,snd_hwdep,snd_usb_audio,snd_usbmidi_lib,snd_bcm2835,snd_soc_hdmi_codec,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
snd_bcm2835 36864 2
snd_compress 36864 1 snd_soc_core
snd_hwdep 24576 1 snd_usb_audio
snd_pcm 147456 6
snd_usb_audio,snd_bcm2835,snd_soc_hdmi_codec,snd_soc_core,snd_pcm_dmaengine
snd_pcm_dmaengine 20480 1 snd_soc_core
snd_rawmidi 53248 1 snd_usbmidi_lib
snd_seq 106496 0
snd_seq_device 20480 2 snd_seq,snd_rawmidi
snd_soc_core 303104 1 snd_soc_hdmi_codec
snd_soc_hdmi_codec 20480 0
snd_timer 49152 2 snd_seq,snd_pcm
snd_usb_audio 290816 0
snd_usbmidi_lib 40960 1 snd_usb_audio
soundcore 20480 1 snd
vchiq 372736 2 snd_bcm2835,bcm2835_v4l2
Am 04.04.20 um 21:37 schrieb Stefan Wahren:
Hi Peter,
Am 04.04.20 um 20:40 schrieb Peter Robinson:
Fedora 32 aarch64 with XFCE runs smoothly on my Raspi4. Everything is
working fine except sound. I can't hear anything with my headphone
plugged in .
It's not supported upstream, the analog port on the RPi3 isn't
supported in the upstream kernel yet either,
what do you mean with analog port on RPi 3 isn't supported?
The bcm2835-audio driver has been there a long time, it's only in staging.
Regards
Stefan
but if you also look
close enough you'd also see that the graphics for the RPi4 isn't
accelerated on your XFCE instance.... again not yet supported
upstream.
The pavumeter is working.
I want to use this Raspberry for Multimedia streaming on TV.
Well you'll be able to do that when the support lands in the upstream kernel.
BTW: Sound via Bluetooth is working fine.
Greeting
Andreas
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