ADLINK cPCI-3620 - Manual (Page 68)

56 Driver Installation
VGA noise Issue with older versions of Ubuntu OS
NOTE: NOTE:
The VGA port may exhibit noise when the system is running an
older version of the Ubuntu OS. This is due to a graphics driver
compatibility issue with the new Intel® Atom CPU (reproduc-
ible on the Intel Customer Reference Board). ADLINK recom-
mends installing the latest version of Ubuntu (e.g. 14.04 LTS).