Fix didn’t work for me. It restored the entry in the settings menu. Selecting it gives a soft ‘pop’ from the speakers, but it’s impossible to get any other sound out of it.
Note: This is using the Hifiberry DAC+
I also noted I suddenly had two dtoverlay entries in my config.txt I removed the one that read dtoverlay=hifiberry-dacplus-overlay since it should be dtoverlay=hifiberry-dacplus
Note2: I also tested the option dtoverlay=hifiberry-dacplus-overlay just to be sure. But that doesn’t work either.
Note3: running speaker-test will always reply: Playback open error: -16,Device or resource busy
dmesg shows:
[ +0.080973] snd-rpi-hifiberry-dacplus sound: ASoC: CODEC DAI pcm512x-hifi not registered
[ +0.000025] snd-rpi-hifiberry-dacplus sound: snd_soc_register_card() failed: -517
[ +0.021800] snd-rpi-hifiberry-dacplus sound: ASoC: CODEC DAI pcm512x-hifi not registered
[ +0.000026] snd-rpi-hifiberry-dacplus sound: snd_soc_register_card() failed: -517
[ +0.045411] sr 1:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[ +0.000026] cdrom: Uniform CD-ROM driver Revision: 3.20
[ +0.001711] usbcore: registered new interface driver uas
[ +0.001847] snd-rpi-hifiberry-dacplus sound: ASoC: CODEC DAI pcm512x-hifi not registered
[ +0.000028] snd-rpi-hifiberry-dacplus sound: snd_soc_register_card() failed: -517
But aplay -l correctly shows:
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dacplus], device 0: HiFiBerry DAC+ HiFi pcm512x-hifi-0
Subdevices: 1/1
Subdevice #0: subdevice #0