[coreboot] DRI_PRIME on G505s with enabled dGPU?

[Matt B]

Hi,

Quick question before I go out and buy a different motherboard for my G505s:

To those who have a dual-GPU G505s and have enabled the recent support for
the dGPU, does DRI_PRIME GPU offloading work?

Thanks,
    -Matt

PS. Could here be an option created to enable/disable the dGPU at boot time
without recompiling?