Date: Tue, 6 Sep 2022 12:23:08 +0100 From: Marco Devesas Campos <devesas.campos@gmail.com> To: Fred Finster <fred@thegalacticzoo.com> Cc: freebsd-arm@freebsd.org Subject: Re: VCHIQ sound on Raspi4B. Which DTB to include on config.txt file, Any other missing pieces? Message-ID: <E025A042-012C-4DA8-964C-90B77687222A@gmail.com> In-Reply-To: <0ec5a701-908f-fc15-ef8b-401c1553e194@thegalacticzoo.com> References: <0ec5a701-908f-fc15-ef8b-401c1553e194@thegalacticzoo.com>
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Hi > On 7 Sep 2022, at 06:04, Fred Finster <fred@thegalacticzoo.com> wrote: >=20 > VCHIQ sound on Raspi4B HDMI audio. Which DTB to include on config.txt = file, Any other missing pieces? stock confit.txt and dtb-s.=20 dmesg should then show vchiq0: <BCM2835 VCHIQ> mem 0x7e00b840-0x7e00b87b irq 72 on simplebus0 vchiq: local ver 8 (min 3), remote ver 8. pcm0: <VCHIQ audio> on vchiq0 and=20 cat /dev/random > /dev/dsp should play static If nothing=E2=80=99s playing, flipping the sysctl dev.pcm.0.dest through - 0: both hdmi and headphones - 1: headphones - 2: hdmi usually brings the audio back to life. Best, Marco=
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