how do I check if linux can see and use my discrete graphics card?
@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?
@lizardsquid
Your ATI card is likely supported on Linux through MESA, but I'm not sure how it'll work on your frankendistro... I have zero experience with sabayon or gentoo...
@snaums