diff --git a/src/atombios_crtc.c b/src/atombios_crtc.c
index 6d24c2b..3e94505 100644
--- a/src/atombios_crtc.c
+++ b/src/atombios_crtc.c
@@ -304,8 +304,8 @@ atombios_crtc_set_pll(xf86CrtcPtr crtc, DisplayModePtr mode)
 		if (radeon_output->active_device & (ATOM_DEVICE_LCD_SUPPORT |
 						    ATOM_DEVICE_DFP_SUPPORT))
 		    pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
-		if (radeon_output->active_device & (ATOM_DEVICE_LCD_SUPPORT))
-		    pll_flags |= (RADEON_PLL_USE_BIOS_DIVS | RADEON_PLL_USE_REF_DIV);
+		//if (radeon_output->active_device & (ATOM_DEVICE_LCD_SUPPORT))
+		//pll_flags |= (RADEON_PLL_USE_BIOS_DIVS | RADEON_PLL_USE_REF_DIV);
 	    }
 	}
 
diff --git a/src/legacy_crtc.c b/src/legacy_crtc.c
index b57ba5f..335653e 100644
--- a/src/legacy_crtc.c
+++ b/src/legacy_crtc.c
@@ -1765,8 +1765,10 @@ legacy_crtc_mode_set(xf86CrtcPtr crtc, DisplayModePtr mode,
 	    if (radeon_output->active_device & (ATOM_DEVICE_LCD_SUPPORT |
 						ATOM_DEVICE_DFP_SUPPORT))
 		pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
-	    if (radeon_output->active_device & (ATOM_DEVICE_LCD_SUPPORT))
-		pll_flags |= (RADEON_PLL_USE_BIOS_DIVS | RADEON_PLL_USE_REF_DIV);
+	    if (!info->IsAtomBios) {
+		if (radeon_output->active_device & (ATOM_DEVICE_LCD_SUPPORT))
+		    pll_flags |= (RADEON_PLL_USE_BIOS_DIVS | RADEON_PLL_USE_REF_DIV);
+	    }
 	}
     }
 
diff --git a/src/legacy_output.c b/src/legacy_output.c
index 7134ee1..748c77e 100644
--- a/src/legacy_output.c
+++ b/src/legacy_output.c
@@ -351,9 +351,9 @@ RADEONRestoreLVDSRegisters(ScrnInfoPtr pScrn, RADEONSavePtr restore)
 	OUTREG(RADEON_LVDS_GEN_CNTL,  restore->lvds_gen_cntl);
 	/*OUTREG(RADEON_LVDS_PLL_CNTL,  restore->lvds_pll_cntl);*/
 
-	if (info->ChipFamily == CHIP_FAMILY_RV410) {
-	    OUTREG(RADEON_CLOCK_CNTL_INDEX, 0);
-	}
+	//if (info->ChipFamily == CHIP_FAMILY_RV410) {
+	//  OUTREG(RADEON_CLOCK_CNTL_INDEX, 0);
+	//}
     }
 
 }