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Amp3 reboot loops with HifiberryOS.

Rasmus Wiman

December 05, 2022 14:50

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My brand new Amp3/RPi4B kit I received this weekend randomly enters reboot loops. After creating the /boot/noreboot file, I get this

# cat /tmp/reboot
Adding amp3 to config.txt

However, the output from aplay -l is the same regardless if /tmp/reboot is empty or not. Also, /boot/config.txt has the

force_eeprom_read=0
dtoverlay=hifiberry-amp3

lines I assume it should have. What's going on? I have another Pi 4 with a Digi+ Pro, and I haven't noticed any signs of reboot loops. Also I don't yet have any speakers I can connect to the Amp so I don't know if audio works or not.

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3 comments

• 0
  
  HiFiBerry team December 07, 2022 08:31

  Create a file "noreboot" on the FAT partition and login to the system. Then check what board is detected.

• 0
  
  Rasmus Wiman December 07, 2022 14:49

  I had already created the noreboot file.How do I check what's detected? Shuld I look for anyting particular in the dmesg output? This is what aplay -l returns anyway:

  **** List of PLAYBACK Hardware Devices ****
  card 0: sndrpihifiberry [snd_rpi_hifiberry_amp3], device 0: Hifiberry Amp3 ma120x0p-amp-0 [Hifiberry Amp3 ma120x0p-amp-0]
    Subdevices: 1/1
    Subdevice #0: subdevice #0

  As I mentioned, the output from aplay -l is the same both when a /tmp/reboot file exists, and when it doesn't.

• 0
  
  HiFiBerry team December 08, 2022 06:13

  This looks just right. Not sure why it reboots.
  
  What's the output of
   /opt/hifiberry/bin/detect-hifiberry