@lizardsquid see: lspci | grep -i "VGA"
check if driver loaded:
dmesg | grep "nvidia" # or radeon, fglrx, nouveau, bla
if can use: some GL-demo, which displays the default graphics card?
@snaums lspci doesn't exist on my system for some reason, but dmesg shows positive results for both radeon and amdgpu
when I run stuff in wine, it can only detect my integrated card