diff --git a/src/mainboard/system76/addw2/acpi/dgpu.asl b/src/mainboard/system76/addw2/acpi/dgpu.asl
index 05ec1a4560..7cc8e2f77a 100644
--- a/src/mainboard/system76/addw2/acpi/dgpu.asl
+++ b/src/mainboard/system76/addw2/acpi/dgpu.asl
@@ -24,7 +24,7 @@
 
 #define DGPU_RST_N GPP_F22
 #define DGPU_PWR_EN GPP_F23
-#define DGPU_GC6 GPP_C12
+#define DGPU_GC6 GPP_K21
 
 Device (\_SB.PCI0.PEGP.DEV0)
 {
diff --git a/src/mainboard/system76/addw2/acpi/pegp.asl b/src/mainboard/system76/addw2/acpi/pegp.asl
index 824052512a..44dd605200 100644
--- a/src/mainboard/system76/addw2/acpi/pegp.asl
+++ b/src/mainboard/system76/addw2/acpi/pegp.asl
@@ -4,7 +4,6 @@
 Device (PEGP)
 {
 	Name (_ADR, 0x00010000)
-	Name (_STA, 0xF)
 
 	PowerResource (PWRR, 0, 0)
 	{
@@ -14,7 +13,7 @@ Device (PEGP)
 		{
 			Debug = "PEGP.PWRR._ON"
 			If (_STA != 1) {
-				\_SB.PCI0.PEGP._ON ()
+				\_SB.PCI0.PEGP.DEV0._ON ()
 				_STA = 1
 			}
 		}
@@ -23,50 +22,13 @@ Device (PEGP)
 		{
 			Debug = "PEGP.PWRR._OFF"
 			If (_STA != 0) {
-				\_SB.PCI0.PEGP._OFF ()
+				\_SB.PCI0.PEGP.DEV0._OFF ()
 				_STA = 0
 			}
 		}
 	}
 
-	/* Depend on the CLK to be active. _PR3 is also searched by nouveau to
-	 * detect "Windows 8 compatible Optimus _DSM handler".
-	 */
-	Name (_PRE, Package () { \_SB.PCI0.PEGP.PWRR })
 	Name (_PR0, Package () { \_SB.PCI0.PEGP.PWRR })
+	Name (_PR2, Package () { \_SB.PCI0.PEGP.PWRR })
 	Name (_PR3, Package () { \_SB.PCI0.PEGP.PWRR })
-
-	Name (_PSC, 0)
-
-	Method (_PS0)
-	{
-		Debug = "PEGP._PS0"
-		_PSC = 0
-	}
-
-	Method (_PS3)
-	{
-		Debug = "PEGP._PS3"
-		_PSC = 3
-	}
-
-	Method (_ON)
-	{
-		Debug = "PEGP._ON"
-		If (_STA != 0xF)
-		{
-			^DEV0._ON ()
-			_STA = 0xF
-		}
-	}
-
-	Method (_OFF)
-	{
-		Debug = "PEGP._OFF"
-		If (_STA != 0x5)
-		{
-			^DEV0._OFF ()
-			_STA = 0x5
-		}
-	}
 }
diff --git a/src/mainboard/system76/addw2/acpi/sleep.asl b/src/mainboard/system76/addw2/acpi/sleep.asl
index 48c50e075e..cd8ffefa38 100644
--- a/src/mainboard/system76/addw2/acpi/sleep.asl
+++ b/src/mainboard/system76/addw2/acpi/sleep.asl
@@ -3,6 +3,9 @@
 /* Method called from _PTS prior to enter sleep state */
 Method (MPTS, 1) {
 	\_SB.PCI0.LPCB.EC0.PTS (Arg0)
+
+	// Turn DGPU on before sleeping
+	\_SB.PCI0.PEGP.DEV0._ON()
 }
 
 /* Method called from _WAK prior to wakeup */
diff --git a/src/mainboard/system76/addw2/bootblock.c b/src/mainboard/system76/addw2/bootblock.c
index ab11d03fb2..847b147867 100644
--- a/src/mainboard/system76/addw2/bootblock.c
+++ b/src/mainboard/system76/addw2/bootblock.c
@@ -1,13 +1,16 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
+#include <console/console.h>
 #include <delay.h>
 #include <gpio.h>
 #include "gpio.h"
 
 static void dgpu_power_enable(int onoff) {
+	printk(BIOS_DEBUG, "system76: DGPU power %d\n", onoff);
 	if (onoff) {
 		gpio_set(DGPU_RST_N, 0);
+		mdelay(4);
 		gpio_set(DGPU_PWR_EN, 1);
 		mdelay(4);
 		gpio_set(DGPU_RST_N, 1);
diff --git a/src/mainboard/system76/addw2/hda_verb.c b/src/mainboard/system76/addw2/hda_verb.c
index d801f9e65e..8e4113a8ea 100644
--- a/src/mainboard/system76/addw2/hda_verb.c
+++ b/src/mainboard/system76/addw2/hda_verb.c
@@ -22,23 +22,6 @@ const u32 cim_verb_data[] = {
 	AZALIA_PIN_CFG(0, 0x1b, 0x90170110),
 	AZALIA_PIN_CFG(0, 0x1d, 0x40b7952d),
 	AZALIA_PIN_CFG(0, 0x1e, 0x04451150),
-	/* Intel, KabylakeHDMI */
-	0x8086280b, /* Vendor ID */
-	0x80860101, /* Subsystem ID */
-	4, /* Number of entries */
-	AZALIA_SUBVENDOR(2, 0x80860101),
-	AZALIA_PIN_CFG(2, 0x05, 0x18560010),
-	AZALIA_PIN_CFG(2, 0x06, 0x18560010),
-	AZALIA_PIN_CFG(2, 0x07, 0x18560010),
-	/* Nvidia, GPU92HDMI/DP */
-	0x10de0092, /* Vendor ID */
-	0x155865e1, /* Subsystem ID */
-	5, /* Number of entries */
-	AZALIA_SUBVENDOR(0, 0x155865e1),
-	AZALIA_PIN_CFG(0, 0x04, 0x185600f0),
-	AZALIA_PIN_CFG(0, 0x05, 0x185600f0),
-	AZALIA_PIN_CFG(0, 0x06, 0x185600f0),
-	AZALIA_PIN_CFG(0, 0x07, 0x185600f0),
 };
 
 const u32 pc_beep_verbs[] = {};
diff --git a/src/mainboard/system76/gaze15/acpi/pegp.asl b/src/mainboard/system76/gaze15/acpi/pegp.asl
index 824052512a..44dd605200 100644
--- a/src/mainboard/system76/gaze15/acpi/pegp.asl
+++ b/src/mainboard/system76/gaze15/acpi/pegp.asl
@@ -4,7 +4,6 @@
 Device (PEGP)
 {
 	Name (_ADR, 0x00010000)
-	Name (_STA, 0xF)
 
 	PowerResource (PWRR, 0, 0)
 	{
@@ -14,7 +13,7 @@ Device (PEGP)
 		{
 			Debug = "PEGP.PWRR._ON"
 			If (_STA != 1) {
-				\_SB.PCI0.PEGP._ON ()
+				\_SB.PCI0.PEGP.DEV0._ON ()
 				_STA = 1
 			}
 		}
@@ -23,50 +22,13 @@ Device (PEGP)
 		{
 			Debug = "PEGP.PWRR._OFF"
 			If (_STA != 0) {
-				\_SB.PCI0.PEGP._OFF ()
+				\_SB.PCI0.PEGP.DEV0._OFF ()
 				_STA = 0
 			}
 		}
 	}
 
-	/* Depend on the CLK to be active. _PR3 is also searched by nouveau to
-	 * detect "Windows 8 compatible Optimus _DSM handler".
-	 */
-	Name (_PRE, Package () { \_SB.PCI0.PEGP.PWRR })
 	Name (_PR0, Package () { \_SB.PCI0.PEGP.PWRR })
+	Name (_PR2, Package () { \_SB.PCI0.PEGP.PWRR })
 	Name (_PR3, Package () { \_SB.PCI0.PEGP.PWRR })
-
-	Name (_PSC, 0)
-
-	Method (_PS0)
-	{
-		Debug = "PEGP._PS0"
-		_PSC = 0
-	}
-
-	Method (_PS3)
-	{
-		Debug = "PEGP._PS3"
-		_PSC = 3
-	}
-
-	Method (_ON)
-	{
-		Debug = "PEGP._ON"
-		If (_STA != 0xF)
-		{
-			^DEV0._ON ()
-			_STA = 0xF
-		}
-	}
-
-	Method (_OFF)
-	{
-		Debug = "PEGP._OFF"
-		If (_STA != 0x5)
-		{
-			^DEV0._OFF ()
-			_STA = 0x5
-		}
-	}
 }
diff --git a/src/mainboard/system76/gaze15/acpi/sleep.asl b/src/mainboard/system76/gaze15/acpi/sleep.asl
index 48c50e075e..cd8ffefa38 100644
--- a/src/mainboard/system76/gaze15/acpi/sleep.asl
+++ b/src/mainboard/system76/gaze15/acpi/sleep.asl
@@ -3,6 +3,9 @@
 /* Method called from _PTS prior to enter sleep state */
 Method (MPTS, 1) {
 	\_SB.PCI0.LPCB.EC0.PTS (Arg0)
+
+	// Turn DGPU on before sleeping
+	\_SB.PCI0.PEGP.DEV0._ON()
 }
 
 /* Method called from _WAK prior to wakeup */
diff --git a/src/mainboard/system76/gaze15/bootblock.c b/src/mainboard/system76/gaze15/bootblock.c
index ab11d03fb2..847b147867 100644
--- a/src/mainboard/system76/gaze15/bootblock.c
+++ b/src/mainboard/system76/gaze15/bootblock.c
@@ -1,13 +1,16 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
+#include <console/console.h>
 #include <delay.h>
 #include <gpio.h>
 #include "gpio.h"
 
 static void dgpu_power_enable(int onoff) {
+	printk(BIOS_DEBUG, "system76: DGPU power %d\n", onoff);
 	if (onoff) {
 		gpio_set(DGPU_RST_N, 0);
+		mdelay(4);
 		gpio_set(DGPU_PWR_EN, 1);
 		mdelay(4);
 		gpio_set(DGPU_RST_N, 1);
diff --git a/src/mainboard/system76/gaze15/hda_verb.c b/src/mainboard/system76/gaze15/hda_verb.c
index 36f9090421..7a73d8d979 100644
--- a/src/mainboard/system76/gaze15/hda_verb.c
+++ b/src/mainboard/system76/gaze15/hda_verb.c
@@ -22,23 +22,6 @@ const u32 cim_verb_data[] = {
 	AZALIA_PIN_CFG(0, 0x1b, 0x411111f0),
 	AZALIA_PIN_CFG(0, 0x1d, 0x41738205),
 	AZALIA_PIN_CFG(0, 0x1e, 0x411111f0),
-	/* Intel, KabylakeHDMI */
-	0x8086280b, /* Vendor ID */
-	0x80860101, /* Subsystem ID */
-	4, /* Number of entries */
-	AZALIA_SUBVENDOR(2, 0x80860101),
-	AZALIA_PIN_CFG(2, 0x05, 0x18560010),
-	AZALIA_PIN_CFG(2, 0x06, 0x18560010),
-	AZALIA_PIN_CFG(2, 0x07, 0x18560010),
-	/* Nvidia, GPU99HDMI/DP */
-	0x10de0099, /* Vendor ID */
-	0x10de0000, /* Subsystem ID */
-	5, /* Number of entries */
-	AZALIA_SUBVENDOR(0, 0x10de0000),
-	AZALIA_PIN_CFG(0, 0x04, 0x185600f0),
-	AZALIA_PIN_CFG(0, 0x05, 0x185600f0),
-	AZALIA_PIN_CFG(0, 0x06, 0x585600f0),
-	AZALIA_PIN_CFG(0, 0x07, 0x585600f0),
 };
 
 const u32 pc_beep_verbs[] = {};
diff --git a/src/mainboard/system76/oryp6/acpi/pegp.asl b/src/mainboard/system76/oryp6/acpi/pegp.asl
index 824052512a..44dd605200 100644
--- a/src/mainboard/system76/oryp6/acpi/pegp.asl
+++ b/src/mainboard/system76/oryp6/acpi/pegp.asl
@@ -4,7 +4,6 @@
 Device (PEGP)
 {
 	Name (_ADR, 0x00010000)
-	Name (_STA, 0xF)
 
 	PowerResource (PWRR, 0, 0)
 	{
@@ -14,7 +13,7 @@ Device (PEGP)
 		{
 			Debug = "PEGP.PWRR._ON"
 			If (_STA != 1) {
-				\_SB.PCI0.PEGP._ON ()
+				\_SB.PCI0.PEGP.DEV0._ON ()
 				_STA = 1
 			}
 		}
@@ -23,50 +22,13 @@ Device (PEGP)
 		{
 			Debug = "PEGP.PWRR._OFF"
 			If (_STA != 0) {
-				\_SB.PCI0.PEGP._OFF ()
+				\_SB.PCI0.PEGP.DEV0._OFF ()
 				_STA = 0
 			}
 		}
 	}
 
-	/* Depend on the CLK to be active. _PR3 is also searched by nouveau to
-	 * detect "Windows 8 compatible Optimus _DSM handler".
-	 */
-	Name (_PRE, Package () { \_SB.PCI0.PEGP.PWRR })
 	Name (_PR0, Package () { \_SB.PCI0.PEGP.PWRR })
+	Name (_PR2, Package () { \_SB.PCI0.PEGP.PWRR })
 	Name (_PR3, Package () { \_SB.PCI0.PEGP.PWRR })
-
-	Name (_PSC, 0)
-
-	Method (_PS0)
-	{
-		Debug = "PEGP._PS0"
-		_PSC = 0
-	}
-
-	Method (_PS3)
-	{
-		Debug = "PEGP._PS3"
-		_PSC = 3
-	}
-
-	Method (_ON)
-	{
-		Debug = "PEGP._ON"
-		If (_STA != 0xF)
-		{
-			^DEV0._ON ()
-			_STA = 0xF
-		}
-	}
-
-	Method (_OFF)
-	{
-		Debug = "PEGP._OFF"
-		If (_STA != 0x5)
-		{
-			^DEV0._OFF ()
-			_STA = 0x5
-		}
-	}
 }
diff --git a/src/mainboard/system76/oryp6/acpi/sleep.asl b/src/mainboard/system76/oryp6/acpi/sleep.asl
index 48c50e075e..cd8ffefa38 100644
--- a/src/mainboard/system76/oryp6/acpi/sleep.asl
+++ b/src/mainboard/system76/oryp6/acpi/sleep.asl
@@ -3,6 +3,9 @@
 /* Method called from _PTS prior to enter sleep state */
 Method (MPTS, 1) {
 	\_SB.PCI0.LPCB.EC0.PTS (Arg0)
+
+	// Turn DGPU on before sleeping
+	\_SB.PCI0.PEGP.DEV0._ON()
 }
 
 /* Method called from _WAK prior to wakeup */
diff --git a/src/mainboard/system76/oryp6/bootblock.c b/src/mainboard/system76/oryp6/bootblock.c
index ab11d03fb2..847b147867 100644
--- a/src/mainboard/system76/oryp6/bootblock.c
+++ b/src/mainboard/system76/oryp6/bootblock.c
@@ -1,13 +1,16 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
+#include <console/console.h>
 #include <delay.h>
 #include <gpio.h>
 #include "gpio.h"
 
 static void dgpu_power_enable(int onoff) {
+	printk(BIOS_DEBUG, "system76: DGPU power %d\n", onoff);
 	if (onoff) {
 		gpio_set(DGPU_RST_N, 0);
+		mdelay(4);
 		gpio_set(DGPU_PWR_EN, 1);
 		mdelay(4);
 		gpio_set(DGPU_RST_N, 1);