hm this command shows the right Card. glxinfo | egrep 'renderer|vendor': Code: server glx vendor string: ATI client glx vendor string: ATI OpenGL vendor string: ATI Technologies Inc. OpenGL renderer string: ATI Radeon HD 5600 Series is there a way to see which card is used by wine (other than the indications in games)? I researched a little more about my mainboard and the onboard graphics card should be automatically deactivated when i start with a other card and crossfire is not active (which isn't). (I actually tried booting with crossfire but it didn't even draw the gui, so i disabled it again) Any other ideas? I have no idea why and how this happens :(