diff --git a/headers/private/graphics/intel_extreme/intel_extreme.h b/headers/private/graphics/intel_extreme/intel_extreme.h
index 933e239e5a..cad0f7dc3a 100644
--- a/headers/private/graphics/intel_extreme/intel_extreme.h
+++ b/headers/private/graphics/intel_extreme/intel_extreme.h
@@ -923,6 +923,8 @@ struct intel_brightness_legacy {
 #define LCPLL_CTL						0x130040
 #define LCPLL_CLK_FREQ_MASK				(3 << 26)
 #define LCPLL_CLK_FREQ_450				(0 << 26)
+#define LCPLL_CLK_FREQ_54O_BDW			(1 << 26)
+#define LCPLL_CLK_FREQ_337_5_BDW		(2 << 26)
 #define LCPLL_CD_SOURCE_FCLK			(1 << 21)
 
 // display
diff --git a/src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp b/src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp
index 2220305175..1e541a9b86 100644
--- a/src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp
+++ b/src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp
@@ -879,7 +879,19 @@ intel_extreme_init(intel_info &info)
 		info.shared_info->fdi_link_frequency = 0;
 	}
 
-	if (info.device_type.InGroup(INTEL_GROUP_HAS)) {
+	if (info.device_type.InGroup(INTEL_GROUP_BDW)) {
+		uint32 lcpll = read32(info, LCPLL_CTL);
+		if ((lcpll & LCPLL_CD_SOURCE_FCLK) != 0)
+			info.shared_info->hw_cdclk = 800000;
+		else if ((lcpll & LCPLL_CLK_FREQ_MASK) == LCPLL_CLK_FREQ_450)
+			info.shared_info->hw_cdclk = 450000;
+		else if ((lcpll & LCPLL_CLK_FREQ_MASK) == LCPLL_CLK_FREQ_54O_BDW)
+			info.shared_info->hw_cdclk = 540000;
+		else if ((lcpll & LCPLL_CLK_FREQ_MASK) == LCPLL_CLK_FREQ_337_5_BDW)
+			info.shared_info->hw_cdclk = 337500;
+		else
+			info.shared_info->hw_cdclk = 675000;
+	} else if (info.device_type.InGroup(INTEL_GROUP_HAS)) {
 		uint32 lcpll = read32(info, LCPLL_CTL);
 		if ((lcpll & LCPLL_CD_SOURCE_FCLK) != 0)
 			info.shared_info->hw_cdclk = 800000;