rdev->num_crtc = 6;
                rdev->has_uvd = true;
                rdev->cg_flags =
-                       /*RADEON_CG_SUPPORT_GFX_MGCG |*/
+                       RADEON_CG_SUPPORT_GFX_MGCG |
                        RADEON_CG_SUPPORT_GFX_MGLS |
                        /*RADEON_CG_SUPPORT_GFX_CGCG |*/
                        RADEON_CG_SUPPORT_GFX_CGLS |
                if (rdev->family == CHIP_KAVERI) {
                        rdev->num_crtc = 4;
                        rdev->cg_flags =
-                               /*RADEON_CG_SUPPORT_GFX_MGCG |*/
+                               RADEON_CG_SUPPORT_GFX_MGCG |
                                RADEON_CG_SUPPORT_GFX_MGLS |
                                /*RADEON_CG_SUPPORT_GFX_CGCG |*/
                                RADEON_CG_SUPPORT_GFX_CGLS |
                } else {
                        rdev->num_crtc = 2;
                        rdev->cg_flags =
-                               /*RADEON_CG_SUPPORT_GFX_MGCG |*/
+                               RADEON_CG_SUPPORT_GFX_MGCG |
                                RADEON_CG_SUPPORT_GFX_MGLS |
                                /*RADEON_CG_SUPPORT_GFX_CGCG |*/
                                RADEON_CG_SUPPORT_GFX_CGLS |