I have installed openpli on ubuntu 20.04 LTS, there did not appear to be any problem with the install, however on starting I get a black screen. I pressed F11 and the terminal says 'server does not have extension for -dpms option'. Possibly related as I am using a box with an intel igp, apparently I should alter the xine config file to use opengl, but I have no idea how to do this despite much googling.
Any help appreciated