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Digi2 Pro board no sound / not detecting

Hi There,

Got a RPI 3B+ with a Digi2 pro board, and it has been working great, but all of a sudden no sound on the coax, and no light in the TOSLink port.

I'm seeing the card in aplay -l ;

**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_digi], device 0: HiFiBerry Digi+ Pro HiFi wm8804-spdif-0 [HiFiBerry Digi+ Pro HiFi wm8804-spdif-0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

But no entry in config.txt

# cat /boot/config.txt
# Please note that this is only a sample, we recommend you to change it to fit
# your needs.
# You should override this file using a post-build script.
# See http://buildroot.org/manual.html#rootfs-custom
# and http://elinux.org/RPiconfig for a description of config.txt syntax

# We always use the same names, the real used variant is selected by
# BR2_PACKAGE_RPI_FIRMWARE_{DEFAULT,X,CD} choice
start_file=start.elf
fixup_file=fixup.dat

kernel=zImage

# To use an external initramfs file
#initramfs rootfs.cpio.gz

# Disable overscan assuming the display supports displaying the full resolution
# If the text shown on the screen disappears off the edge, comment this out
disable_overscan=1

# How much memory in MB to assign to the GPU on Pi models having
# 256, 512 or 1024 MB total memory
gpu_mem_256=100
gpu_mem_512=100
gpu_mem_1024=100
# Enable I2C and SPI
dtparam=i2c=on
dtparam=spi=on
dtoverlay=i2c-gpio,i2c_gpio_sda=0,i2c_gpio_scl=1
dtoverlay=vc4-fkms-v3d,audio=off

and a strange error in the dmesg log --

# dmesg | grep -i hifiberry
[    7.440372] systemd[1]: Starting HiFiBerry detect...
[    7.441825] systemd[206]: hifiberry-detect.service: Failed to connect stdout to the journal socket, ignoring: Connection refused
[    7.450622] systemd[1]: Starting HiFiBerry startup...
[    8.040184] systemd[1]: Finished HiFiBerry startup.
[    8.695967] systemd[1]: hifiberry-detect.service: Deactivated successfully.
[    8.699662] systemd[1]: Finished HiFiBerry detect.

Needless to say the is no sound coming through, and yes, I have tested the rest of the system with a good old fashioned CD player with a digital out (coax) and it plays like a champ.

I have also tried a fresh install, and that does not work either, so at this point I'm going to need a bit of help please.

Thanks,

Peter

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