Major sound system update

Francois Tigeot ftigeot at
Thu Jan 8 03:40:10 PST 2015


The sound system has been completely upgraded from FreeBSD 11-CURRENT.

A complete world + kernel rebuild sequence is required on -master.

The previous version was based on the FreeBSD 6.x branch, circa 2007
and was starting to show its age.

Among many improvements, we get:

* Much smarter volume controls

* Improved HDMI/DisplayPort audio support

* An easy way to switch the default sound device with the
  hw.snd.default_unit sysctl

* HTML5/Youtube videos should play with sound out of the box

On top of the FreeBSD code, we also have additional support for the
Acer C720 Chromebook family of laptops.

Francois Tigeot

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