Changes
/* Missing Built-in Audio */
$ sudo reboot
</pre>
* Test audio output, go to Sound settings:* <pre>- Menu -> Sound -> Output -> Built-in Audio Analog Stereo** - NOTE: it's not dynamic, nothing changes after plug/unplug headphones</pre>
* Click on "Test Sound", then on "Front Left" and "Front Right", check if it hear it from headphones
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