@fabio With respect to using Kubuntu (KDE UI) 16.04 LTS, see my previous posts. I have this installed on a separate hard drive (same laptop) and 0ad V20 "runs", for several minutes, before crashing (the entire screen closes and I'm thrown back to the desktop). I regard it as a separate problem to be addressed in a different thread.
This is better, functionally, than Kubuntu 14.04, but 16.04 is NOT ready for general use, it still has bugs which are being discovered by the general community. I won't be moving my work to 16.04 for some time yet.
Thanks for the setting suggestion, I'll try that (preferglsl=false) and get back to the forum with the result, it might be a day or so...