1config DRM_RADEON_UMS 2 bool "Enable userspace modesetting on radeon (DEPRECATED)" 3 depends on DRM_RADEON 4 help 5 Choose this option if you still need userspace modesetting. 6 7 Userspace modesetting is deprecated for quite some time now, so 8 enable this only if you have ancient versions of the DDX drivers. 9