NixOS on ARM/ODROID-HC4: Difference between revisions

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+== No HDMI audio by default ==
+After enabling ALSA you should see a sound card named "ODROID-HC4". Audio is not correctly routed by default so you might need to open alsa-mixer and change:
+* <code>FRDDR_A SINK 1 SEL</code> to <code>OUT 1</code>
+* <code>FRDDR_A SRC 1 EN</code> to on
+* <code>TDMOUT_B SRC SEL</code> to <code>IN 0</code>
+* <code>TOHDMITX</code> to on
+* <code>TOHDMITX I2S SRC</code> to <code>I2S B</code>
+After these changes, <code>speaker-test -c 2</code> should output white noise.
 == Resources ==