In order for you to play Divinity: Original Sin - Enhanced Edition on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Fedora 21, Ubuntu 14.04
Processor (CPU):
Intel Core2 Duo E6600 or equivalent
Memory (RAM):
4096 MB RAM
Graphics Card:
OpenGL 4.x compliant video card
Storage:
10000 MB available space
In order to play Divinity: Original Sin - Enhanced Edition on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Fedora 23, Ubuntu 15.4/15.10
Processor (CPU):
Intel Core i5 2400 or higher
Memory (RAM):
8192 MB RAM
Graphics Card:
OpenGL 4.x compliant video card
Storage:
10000 MB available space