Alsa problems - aplay: no soundcards found...

Product support balenaOS
16

Found the problem for a large portion of our devices! SD cards used to always have these config variables on by default:

  1. Define DT parameters to "i2c_arm=on","spi=on","audio=on"
  2. Define DT overlays to "vc4-fkms-v3d"

But for some reason the latest batch of 60 SD cards we burned didn’t have them set. I’m wondering if the person who burned them did it via your API and that didn’t set those variables.

Strange thing is that some of the devices still detected ALSA okay even without them set!?!

As for the failing to download image device, here’s the diagnostics output:

Some container_engine issues detected: 
test_container_engine_restarts Container engine balena has 1 restarts and may be crashlooping (most recent start time: Thu 2020-11-12 07:43:22 UTC)

Some localdisk issues detected: 
test_write_latency Slow disk writes detected: mmcblk0: 2563.35ms / write, sample size 5456
mmcblk0p1: 1647.4ms / write, sample size 5
mmcblk0p5: 1974.9ms / write, sample size 42
mmcblk0p6: 2590.75ms / write, sample size 5363
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