For some reason, upon upgrading to Ubuntu 16.04, my volume and brightness media controls are no longer registering as XF86 keys. I created an acpi event and action script for my screen brightness in
/etc/acpi wherein I modify the number in
/sys/class/backlight/acpi_video0/brightness, which works fine.
Unfortunately, I've not been able to track down where in
/sys/class I can modify volume. Searching online hasn't yielded any results - anyone have any suggestions?