Upcoming moOde 9.0.0 (Bookworm)

[Tim Curtis]

Has anyone noticed that for models < pi5 the Headphone jack does appear in aplay -l output?

I had pre5 on a 3a+ for a short while and it would only report hdmi audio, no headphone jack.

I see in my notes back at the start of the Bookworm port that Headphone did not show up as an aplay device when the kms driver is used (dtoverlay=vc4-kms-v3d). This is the default configuration for Bookworm which enables the nice HDMI capabilities.

I suppose I could add a startup option to System Config for a "Headphone-jack-only" configuration (for Pi < 5). This would  comment out the dtoverlay=vc4-kms-v3d line in config.txt which would cause the old snd_bcm2835 driver to load. It's this driver that supports the headphone jack.

I'll run some tests.