Installing the standard Ubuntu 16.04 ISO on an Intel Compute stick with an Atom CPU results in lack of HDMI audio and wifi.
I've combined some recent patches and source code and ported them with Canonical's kernel source to create an ISO that can now fully support HDMI audio, wifi and bluetooth.
Prior to installing the ISO first check the BIOS settings by powering-on your Intel Compute Stick and pressing the 'F2' option. On the 'Configuration' page select the 'Select Operating System' as 'Ubuntu 14.04 LTS 64-bit' or 'Windows 64-bit' depending on the device model. This will make subsequent boots use the 64-bit bootloader meaning you will have to reset the option if you wish to later boot Windows.
Now download the ISO from
The initial menu screen takes slightly longer to appear than with the official ISO. Depending on the speed of your USB it can be anything from 15 to 45 seconds before anything appears on the screen.
Only Atom based Intel Compute sticks are supported and include the STCK1A8LFC, STCK1A32WFC, STK1AW32SC and STK1A32SC models.
Also note that the ISO includes a patched kernel to provide the missing functionality meaning it will not get any automatic kernel updates from Canonical. However other application packages will update as standard.
Acknowledgements: Pierre-Louis Bossart (HDMI audio), Bastien Nocera (wifi) & Larry Finger (bt).
Update: This page refers to earlier work and my latest ISOs can be downloaded from http://linuxiumcomau.blogspot.com.au/2016/06/running-ubuntu-on-intel-compute-stick.html