diff --git a/src/atombios_output.c b/src/atombios_output.c
index 148a1da..8b4aac5 100644
--- a/src/atombios_output.c
+++ b/src/atombios_output.c
@@ -276,6 +276,9 @@ atombios_output_digital_setup(xf86OutputPtr output, int device, DisplayModePtr m
     unsigned char *space;
     int index;
     int major, minor;
+    unsigned char *RADEONMMIO = info->MMIO;
+
+    ErrorF("AVIVO_LVTMA_BIT_DEPTH_CONTROL: 0x%x\n", INREG(AVIVO_LVTMA_BIT_DEPTH_CONTROL));
 
     switch (device) {
     case ATOM_DEVICE_DFP1_INDEX:
@@ -364,6 +367,7 @@ atombios_output_digital_setup(xf86OutputPtr output, int device, DisplayModePtr m
 
     if (RHDAtomBiosFunc(info->atomBIOS->scrnIndex, info->atomBIOS, ATOMBIOS_EXEC, &data) == ATOM_SUCCESS) {
 	ErrorF("Output digital setup success\n");
+	ErrorF("AVIVO_LVTMA_BIT_DEPTH_CONTROL: 0x%x\n", INREG(AVIVO_LVTMA_BIT_DEPTH_CONTROL));
 	return ATOM_SUCCESS;
     }
 
diff --git a/src/radeon_atombios.c b/src/radeon_atombios.c
index 851014b..a13da3a 100644
--- a/src/radeon_atombios.c
+++ b/src/radeon_atombios.c
@@ -1732,6 +1732,8 @@ RADEONGetATOMLVDSInfo(xf86OutputPtr output)
 
     radeon_output->Flags = 0;
 
+    radeon_output->lvds_misc &= ~(1 << 5);
+
     xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 	       "LVDS Info:\n"
 	       "XRes: %d, YRes: %d, DotClock: %d\n"