Try to read the first 256 bytes from the SDVO SPD ROM.
---
 drivers/gpu/drm/i915/intel_sdvo.c |   42 ++++++++++++++++++++++++++++++++++++--
 1 file changed, 40 insertions(+), 2 deletions(-)

Index: linux-2.6.32-rc3/drivers/gpu/drm/i915/intel_sdvo.c
===================================================================
--- linux-2.6.32-rc3.orig/drivers/gpu/drm/i915/intel_sdvo.c	2009-10-09 17:43:14.000000000 +0800
+++ linux-2.6.32-rc3/drivers/gpu/drm/i915/intel_sdvo.c	2009-10-12 11:51:38.000000000 +0800
@@ -47,7 +47,7 @@
 	"SECAM_K"  , "SECAM_K1", "SECAM_L" ,
 	"SECAM_60"
 };
-
+u8 spd_buffer[256];
 #define TV_FORMAT_NUM  (sizeof(tv_format_names) / sizeof(*tv_format_names))
 
 struct intel_sdvo_priv {
@@ -2666,6 +2666,19 @@
 	return;
 }
 
+static void sdvo_print_spd()
+{
+	int i;
+	printk(KERN_DEBUG "SPD ROM");
+	for (i = 0; i < 256; i++) {
+		if (i % 16 ==0)
+			printk("\n\t%x, ", spd_buffer[i]);
+		else
+			printk("%x ", spd_buffer[i]);
+	}
+	printk(KERN_DEBUG "\nEnd SPD ROM\n");
+	return;
+}
 bool intel_sdvo_init(struct drm_device *dev, int output_device)
 {
 	struct drm_connector *connector;
@@ -2708,7 +2721,32 @@
 			goto err_i2c;
 		}
 	}
-
+	if (output_device == SDVOB)
+	{
+		u8 out_buf;
+		struct i2c_msg temp_msgs[] = {
+			{
+			.addr = DDC_ADDR,
+			.flags = 0,
+			.len = 1,
+			.buf = &out_buf,
+			},
+			{
+			.addr = DDC_ADDR,
+			.flags = I2C_M_RD,
+			.len = 256,
+			.buf = spd_buffer,
+			},
+		};
+		out_buf = 0;
+		/* switch to SPD DDC */
+		intel_sdvo_set_control_bus_switch(intel_output, 1);
+		if (i2c_transfer(intel_output->i2c_bus, temp_msgs, 2) == 2) {
+			sdvo_print_spd();
+		} else {
+			printk(KERN_DEBUG "Can't read the SDVO SPD ROM\n");
+		}
+	}
 	/* setup the DDC bus. */
 	if (output_device == SDVOB) {
 		intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS");