Comment 5 for bug 1384435

I ran apt-get update and I also installed https://launchpad.net/~indicator-brightness/+archive/ubuntu/ppa and now the brightness slider is present in the applet and works. So I now have a workaround to easily change brightness.

the Fn brightness keys do not work and is confirmed from the fwts -i test that the ACPI hotkey is not being detected. The kernel was updated to the one mentioned in tags before fwts was run.

for clarity:
updated kernel: - no change
fwts -i :- results above
apt-update ; installed indicator brightness :- slider now present in applet and indicator brightness panel app works

remaining issue: fn hotkeys not detected