--- original/src/atombios_output.c	2008-09-18 11:15:37.000000000 -0700
+++ working/src/atombios_output.c	2008-09-18 17:29:06.000000000 -0700
@@ -620,7 +620,16 @@ dfp_disable_dither(xf86OutputPtr output,
 	break;
     /*case ATOM_DEVICE_LCD1_SUPPORT:*/ /* LVDS panels need dither enabled */
     case ATOM_DEVICE_DFP3_SUPPORT:
-	OUTREG(AVIVO_LVTMA_BIT_DEPTH_CONTROL, 0); /* LVTMA */
+        if ((info->ChipFamily == CHIP_FAMILY_RV635)) {
+            ErrorF("BWH:  Setting bit depth for RV635\n");
+            /* None of these settings corrects the banding issue */
+            OUTREG(AVIVO_TMDSA_BIT_DEPTH_CONTROL, 0);
+            OUTREG(AVIVO_DDIA_BIT_DEPTH_CONTROL, 0);
+            OUTREG(AVIVO_DVOA_BIT_DEPTH_CONTROL, 0);
+            OUTREG(AVIVO_LVTMA_BIT_DEPTH_CONTROL, 0);
+        } else {
+            OUTREG(AVIVO_LVTMA_BIT_DEPTH_CONTROL, 0); /* LVTMA */
+        }
 	break;
     default:
 	break;
@@ -954,7 +963,10 @@ atombios_output_mode_set(xf86OutputPtr o
 		atombios_output_lvds_setup(output, adjusted_mode);
 		dfp_disable_dither(output, ATOM_DEVICE_LCD1_SUPPORT);
 	    }
-	}
+        } else if (radeon_output->devices & ATOM_DEVICE_DFP3_SUPPORT) {
+            atombios_output_lvds_setup(output, adjusted_mode);
+            dfp_disable_dither(output, ATOM_DEVICE_DFP3_SUPPORT);
+        }
     } else if ((radeon_output->MonType == MT_CTV) ||
 	       (radeon_output->MonType == MT_STV) ||
 	       (radeon_output->MonType == MT_CV)) {