diff --git a/headers/private/graphics/intel_extreme/intel_extreme.h b/headers/private/graphics/intel_extreme/intel_extreme.h
index aeabde514c..8ca923c8bf 100644
--- a/headers/private/graphics/intel_extreme/intel_extreme.h
+++ b/headers/private/graphics/intel_extreme/intel_extreme.h
@@ -476,6 +476,7 @@ struct intel_shared_info {
 	edid1_info		vesa_edid_info;
 	bool			has_vesa_edid_info;
 
+	bool			internal_crt_support;
 	uint32			device_config_count;
 	child_device_config device_configs[10];
 };
diff --git a/src/add-ons/accelerants/intel_extreme/accelerant.cpp b/src/add-ons/accelerants/intel_extreme/accelerant.cpp
index d47bba9ea8..a633460907 100644
--- a/src/add-ons/accelerants/intel_extreme/accelerant.cpp
+++ b/src/add-ons/accelerants/intel_extreme/accelerant.cpp
@@ -55,10 +55,13 @@ dump_registers()
 
 	ERROR("%s: Taking register dump #%" B_PRId32 "\n", __func__, gDumpCount);
 
+	area_info areaInfo;
+	get_area_info(gInfo->shared_info->registers_area, &areaInfo);
+
 	int fd = open(filename, O_CREAT | O_WRONLY, 0644);
 	uint32 data = 0;
 	if (fd >= 0) {
-		for (int32 i = 0; i < 0x80000; i += sizeof(data)) {
+		for (uint32 i = 0; i < areaInfo.size; i += sizeof(data)) {
 			//char line[512];
 			//int length = sprintf(line, "%05" B_PRIx32 ": "
 			//	"%08" B_PRIx32 " %08" B_PRIx32 " %08" B_PRIx32 " %08" B_PRIx32 "\n",
@@ -391,7 +394,8 @@ probe_ports()
 	}
 
 	// then finally always try the analog port when chipsets supports it
-	if (gInfo->shared_info->device_type.Generation() <= 8) {
+	if (gInfo->shared_info->device_type.Generation() <= 8
+		&& gInfo->shared_info->internal_crt_support) {
 		TRACE("Probing Analog\n");
 		Port* analogPort = new(std::nothrow) AnalogPort();
 		if (analogPort == NULL)
diff --git a/src/add-ons/kernel/drivers/graphics/intel_extreme/bios.cpp b/src/add-ons/kernel/drivers/graphics/intel_extreme/bios.cpp
index ad8dd01dad..a00992c9ea 100644
--- a/src/add-ons/kernel/drivers/graphics/intel_extreme/bios.cpp
+++ b/src/add-ons/kernel/drivers/graphics/intel_extreme/bios.cpp
@@ -44,7 +44,8 @@ struct bdb_header {
 
 
 enum bdb_block_id {
-	BDB_GENERAL_DEFINITIONS = 2,
+	BDB_GENERAL_FEATURES = 1,
+	BDB_GENERAL_DEFINITIONS,
 	BDB_LVDS_OPTIONS = 40,
 	BDB_LVDS_LFP_DATA_PTRS = 41,
 	BDB_LVDS_BACKLIGHT = 43,
@@ -52,6 +53,52 @@ enum bdb_block_id {
 };
 
 
+struct bdb_general_features {
+	uint8 id;
+	uint16 size;
+
+	uint8 panel_fitting: 2;
+	bool flexaim: 1;
+	bool msg_enable: 1;
+	uint8 clear_screen: 3;
+	bool color_flip: 1;
+
+	bool download_ext_vbt: 1;
+	bool enable_ssc: 1;
+	bool ssc_freq: 1;
+	bool enable_lfp_on_override: 1;
+	bool disable_ssc_ddt: 1;
+	bool underscan_vga_timings: 1;
+	bool display_clock_mode: 1;
+	bool vbios_hotplug_support: 1;
+
+	bool disable_smooth_vision: 1;
+	bool single_dvi: 1;
+	bool rotate_180: 1;
+	bool fdi_rx_polarity_inverted: 1;
+	bool vbios_extended_mode: 1;
+	bool copy_ilfp_dtd_to_svo_lvds_dtd: 1;
+	bool panel_best_fit_timing: 1;
+	bool ignore_strap_state: 1;
+
+	uint8 legacy_monitor_detect;
+
+	bool int_crt_support: 1;
+	bool int_tv_support: 1;
+	bool int_efp_support: 1;
+	bool dp_ssc_enable: 1;
+	bool dp_ssc_freq: 1;
+	bool dp_ssc_dongle_supported: 1;
+	uint8 rsvd11: 2;
+
+	uint8 tc_hpd_retry_timeout: 7;
+	bool rsvd12: 1;
+
+	uint8 afc_startup_config: 2;
+	uint8 rsvd13: 6;
+} __attribute__((packed));
+
+
 struct bdb_general_definitions {
 	uint8 id;
 	uint16 size;
@@ -465,6 +512,19 @@ parse_vbt_from_bios(struct intel_shared_info* info)
 		int id = vbios.memory[start];
 		blockSize = vbios.ReadWord(start + 1) + 3;
 		switch (id) {
+			case BDB_GENERAL_FEATURES:
+			{
+				struct bdb_general_features* features;
+				features = (struct bdb_general_features*)(vbios.memory + start);
+				if (bdb->version >= 155
+					&& (info->device_type.HasDDI()
+						|| info->device_type.InGroup(INTEL_GROUP_VLV))) {
+					info->internal_crt_support = features->int_crt_support;
+					TRACE((DEVICE_NAME ": internal_crt_support: 0x%x\n",
+						info->internal_crt_support));
+				}
+				break;
+			}
 			case BDB_GENERAL_DEFINITIONS:
 			{
 				info->device_config_count = 0;
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 5453c5d784..2220305175 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
@@ -747,6 +747,9 @@ intel_extreme_init(intel_info &info)
 	info.shared_info->frame_buffer = 0;
 	info.shared_info->dpms_mode = B_DPMS_ON;
 	info.shared_info->min_brightness = 2;
+	info.shared_info->internal_crt_support = true;
+	info.shared_info->pch_info = info.pch_info;
+	info.shared_info->device_type = info.device_type;
 
 	// Pull VBIOS info for later use
 	info.shared_info->got_vbt = parse_vbt_from_bios(info.shared_info);
@@ -806,9 +809,6 @@ intel_extreme_init(intel_info &info)
 
 	info.shared_info->pll_info.divisor_register = INTEL_DISPLAY_A_PLL_DIVISOR_0;
 
-	info.shared_info->pch_info = info.pch_info;
-
-	info.shared_info->device_type = info.device_type;
 #ifdef __HAIKU__
 	strlcpy(info.shared_info->device_identifier, info.device_identifier,
 		sizeof(info.shared_info->device_identifier));