lubuntu 16.04 experience, amd radeon integrated video hdmi sound problem

Lubuntu 16.04 on

GA-E2100N (rev. 1.0) | Motherboard - GIGABYTE 

AMD® E1-2100 dual-core APU with Radeon™ HD 8210 graphics SoC

- quick to boot, a bit over 200 MB RAM occupied when all is loaded.
- 3D acceleration works out of the box
- no HDMI sound, fixed by installing pulseaudio
- no video playback acceleration -- fixed by installing vdpau-mesa drivers and setting vdpau in the mplayer as output device.