i have a ati graphics card
i tried to run mythruna fullscreen
and i run source engine games fullscreen
i run source engine games at 1920 x 1080 as i did with mythruna

hi a few months ago my pc ran windows 7 and i could run mythruna at max settings at around 60 fps
but recently i switched to Ubuntu i can run every source engine game e.g half life 2, gmod at max settings fine
but i have to run mythruna at medium settings to get it to run
its not a major problem but i was wondering if anyone knew why?

i have 6gb of ram and a 13.84 ghz processor
i have also cleaned out my pc's fan 2 weeks ago