diff --git a/src/i810_reg.h b/src/i810_reg.h
index 248df04..b89fb6d 100644
--- a/src/i810_reg.h
+++ b/src/i810_reg.h
@@ -1074,6 +1074,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 #define BACKLIGHT_MODULATION_FREQ_MASK		(0x7fff << 17)
 #define BLM_LEGACY_MODE				(1 << 16)
+
 /**
  * This is the number of cycles out of the backlight modulation cycle for which
  * the backlight is on.
@@ -1084,6 +1085,10 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define BACKLIGHT_DUTY_CYCLE_SHIFT		(0)
 #define BACKLIGHT_DUTY_CYCLE_MASK		(0xffff)
 
+/* On 965+ backlight control is in another register */
+#define BLC_PWM_CTL2			0x61250
+#define 	BLM_LEGACY_MODE2	(1 << 30)
+
 #define BLM_CTL			0x61260
 #define BLM_THRESHOLD_0		0x61270
 #define BLM_THRESHOLD_1		0x61274
diff --git a/src/i830.h b/src/i830.h
index aa2b240..1a8ceaf 100644
--- a/src/i830.h
+++ b/src/i830.h
@@ -532,6 +532,7 @@ typedef struct _I830Rec {
    CARD32 savePaletteB[256];
    CARD32 saveSWF[17];
    CARD32 saveBLC_PWM_CTL;
+   CARD32 saveBLC_PWM_CTL2;
    CARD32 saveFBC_CFB_BASE;
    CARD32 saveFBC_LL_BASE;
    CARD32 saveFBC_CONTROL2;
diff --git a/src/i830_lvds.c b/src/i830_lvds.c
index e2c6e3c..20a2888 100644
--- a/src/i830_lvds.c
+++ b/src/i830_lvds.c
@@ -46,6 +46,30 @@ struct i830_lvds_priv {
     int		    backlight_duty_cycle;
 };
 
+/**
+ * Use legacy backlight controls?
+ *
+ * \param pI830 device in question
+ *
+ * Returns TRUE if legacy backlight should be used, false otherwise.
+ */
+static int
+i830_lvds_backlight_legacy(I830Ptr pI830)
+{
+    CARD32 blc_pwm_ctl, blc_pwm_ctl2;
+
+    /* G33 conveniently changed the location... */
+    if (IS_G33CLASS(pI830)) {
+	blc_pwm_ctl2 = INREG(BLC_PWM_CTL2);
+	if (blc_pwm_ctl2 & BLM_LEGACY_MODE2)
+	    return TRUE;
+    } else {
+	blc_pwm_ctl = INREG(BLC_PWM_CTL);
+	if (blc_pwm_ctl & BLM_LEGACY_MODE)
+	    return TRUE;
+    }
+    return FALSE;
+}
 
 /**
  * Sets the backlight level.
@@ -60,14 +84,9 @@ i830_lvds_set_backlight(xf86OutputPtr output, int level)
     CARD32 blc_pwm_ctl;
 
     blc_pwm_ctl = INREG(BLC_PWM_CTL);
-    if (blc_pwm_ctl & BLM_LEGACY_MODE)
-    {
-	pciWriteByte (pI830->PciTag, 
-		      LEGACY_BACKLIGHT_BRIGHTNESS,
-		      level & 0xff);
-    }
-    else
-    {
+    if (i830_lvds_backlight_legacy(pI830)) {
+	pciWriteByte(pI830->PciTag, LEGACY_BACKLIGHT_BRIGHTNESS, level & 0xff);
+    } else {
 	blc_pwm_ctl &= ~BACKLIGHT_DUTY_CYCLE_MASK;
 	OUTREG(BLC_PWM_CTL, blc_pwm_ctl | (level << BACKLIGHT_DUTY_CYCLE_SHIFT));
     }
@@ -81,9 +100,9 @@ i830_lvds_get_max_backlight(xf86OutputPtr output)
 {
     ScrnInfoPtr pScrn = output->scrn;
     I830Ptr	pI830 = I830PTR(pScrn);
-    CARD32	pwm_ctl = INREG(BLC_PWM_CTL);
+    CARD32	pwm_ctl = INREG(BLC_PWM_CTL), pwm_ctl2 = INREG(BLC_PWM_CTL2);
     
-    if (pwm_ctl & BLM_LEGACY_MODE)
+    if (pwm_ctl2 & BLM_LEGACY_MODE)
 	return 0xff;
     else
 	return ((pwm_ctl & BACKLIGHT_MODULATION_FREQ_MASK) >>
@@ -143,13 +162,12 @@ i830_lvds_save (xf86OutputPtr output)
     pI830->savePP_CONTROL = INREG(PP_CONTROL);
     pI830->savePP_CYCLE = INREG(PP_CYCLE);
     pI830->saveBLC_PWM_CTL = INREG(BLC_PWM_CTL);
-    if (pI830->saveBLC_PWM_CTL & BLM_LEGACY_MODE)
-    {
-	dev_priv->backlight_duty_cycle = pciReadByte (pI830->PciTag,
-						      LEGACY_BACKLIGHT_BRIGHTNESS);
-    }
-    else
-    {
+    if (IS_I965G(pI830))
+	pI830->saveBLC_PWM_CTL2 = INREG(BLC_PWM_CTL2);
+    if (i830_lvds_backlight_legacy(pI830)) {
+	dev_priv->backlight_duty_cycle =
+	    pciReadByte (pI830->PciTag, LEGACY_BACKLIGHT_BRIGHTNESS);
+    } else {
 	dev_priv->backlight_duty_cycle = (pI830->saveBLC_PWM_CTL &
 					  BACKLIGHT_DUTY_CYCLE_MASK);
     }
@@ -168,6 +186,8 @@ i830_lvds_restore(xf86OutputPtr output)
     I830Ptr	pI830 = I830PTR(pScrn);
 
     OUTREG(BLC_PWM_CTL, pI830->saveBLC_PWM_CTL);
+    if (IS_I965G(pI830))
+	OUTREG(BLC_PWM_CTL2, pI830->saveBLC_PWM_CTL2);
     OUTREG(LVDSPP_ON, pI830->savePP_ON);
     OUTREG(LVDSPP_OFF, pI830->savePP_OFF);
     OUTREG(PP_CYCLE, pI830->savePP_CYCLE);