# dkms list
# dkms status
# dkms autoinstall
# dkms autoinstall -k 3.16.4-1-ARCH
# dkms install -m nvidia -v 334.21
# dkms install nvidia/334.21 --all
# dkms remove -m nvidia -v 331.49 --all
# dkms remove nvidia/331.49 --all