diff --git a/rpcs3/Emu/SysCalls/Modules/cellAvconfExt.cpp b/rpcs3/Emu/SysCalls/Modules/cellAvconfExt.cpp
index bfa5df5c33f9..3ae0c8b64c23 100644
--- a/rpcs3/Emu/SysCalls/Modules/cellAvconfExt.cpp
+++ b/rpcs3/Emu/SysCalls/Modules/cellAvconfExt.cpp
@@ -9,6 +9,8 @@
 
 extern Module cellAvconfExt;
 
+f32 g_gamma;
+
 s32 cellAudioOutUnregisterDevice()
 {
 	throw EXCEPTION("");
@@ -39,9 +41,18 @@ s32 cellVideoOutConvertCursorColor()
 	throw EXCEPTION("");
 }
 
-s32 cellVideoOutGetGamma()
+s32 cellVideoOutGetGamma(u32 videoOut, vm::ptr<f32> gamma)
 {
-	throw EXCEPTION("");
+	cellAvconfExt.Warning("cellVideoOutGetGamma(videoOut=%d, gamma=*0x%x)", videoOut, gamma);
+
+	if (videoOut != CELL_VIDEO_OUT_PRIMARY)
+	{
+		return CELL_VIDEO_OUT_ERROR_UNSUPPORTED_VIDEO_OUT;
+	}
+
+	*gamma = g_gamma;
+
+	return CELL_OK;
 }
 
 s32 cellAudioInGetAvailableDeviceInfo()
@@ -54,9 +65,23 @@ s32 cellAudioOutGetAvailableDeviceInfo()
 	throw EXCEPTION("");
 }
 
-s32 cellVideoOutSetGamma()
+s32 cellVideoOutSetGamma(u32 videoOut, f32 gamma)
 {
-	throw EXCEPTION("");
+	cellAvconfExt.Warning("cellVideoOutSetGamma(videoOut=%d, gamma=%f)", videoOut, gamma);
+
+	if (videoOut != CELL_VIDEO_OUT_PRIMARY)
+	{
+		return CELL_VIDEO_OUT_ERROR_UNSUPPORTED_VIDEO_OUT;
+	}
+
+	if (gamma < 0.8f || gamma > 1.2f)
+	{
+		return CELL_VIDEO_OUT_ERROR_ILLEGAL_PARAMETER;
+	}
+
+	g_gamma = gamma;
+
+	return CELL_OK;
 }
 
 s32 cellAudioOutRegisterDevice()
@@ -114,6 +139,8 @@ s32 cellVideoOutGetScreenSize(u32 videoOut, vm::ptr<float> screenSize)
 
 Module cellAvconfExt("cellAvconfExt", []()
 {
+	g_gamma = 1.0f;
+
 	REG_FUNC(cellAvconfExt, cellAudioOutUnregisterDevice);
 	REG_FUNC(cellAvconfExt, cellAudioOutGetDeviceInfo2);
 	REG_FUNC(cellAvconfExt, cellVideoOutSetXVColor);
diff --git a/rpcs3/Emu/SysCalls/Modules/cellVideoOut.cpp b/rpcs3/Emu/SysCalls/Modules/cellVideoOut.cpp
index b5ebae5cf885..95c903c8cd39 100644
--- a/rpcs3/Emu/SysCalls/Modules/cellVideoOut.cpp
+++ b/rpcs3/Emu/SysCalls/Modules/cellVideoOut.cpp
@@ -25,11 +25,11 @@ s32 cellVideoOutGetState(u32 videoOut, u32 deviceIndex, vm::ptr<CellVideoOutStat
 		state->displayMode.conversion = Emu.GetGSManager().GetInfo().mode.conversion;
 		state->displayMode.aspect = Emu.GetGSManager().GetInfo().mode.aspect;
 		state->displayMode.refreshRates = Emu.GetGSManager().GetInfo().mode.refreshRates;
-		return CELL_VIDEO_OUT_SUCCEEDED;
+		return CELL_OK;
 
 	case CELL_VIDEO_OUT_SECONDARY:
 		*state = { CELL_VIDEO_OUT_OUTPUT_STATE_DISABLED }; // ???
-		return CELL_VIDEO_OUT_SUCCEEDED;
+		return CELL_OK;
 	}
 
 	return CELL_VIDEO_OUT_ERROR_UNSUPPORTED_VIDEO_OUT;
@@ -46,7 +46,7 @@ s32 cellVideoOutGetResolution(u32 resolutionId, vm::ptr<CellVideoOutResolution>
 	resolution->width = ResolutionTable[num].width;
 	resolution->height = ResolutionTable[num].height;
 
-	return CELL_VIDEO_OUT_SUCCEEDED;
+	return CELL_OK;
 }
 
 s32 cellVideoOutConfigure(u32 videoOut, vm::ptr<CellVideoOutConfiguration> config, vm::ptr<CellVideoOutOption> option, u32 waitForEvent)
@@ -73,10 +73,10 @@ s32 cellVideoOutConfigure(u32 videoOut, vm::ptr<CellVideoOutConfiguration> confi
 			Emu.GetGSManager().GetInfo().mode.pitch = config->pitch;
 		}
 
-		return CELL_VIDEO_OUT_SUCCEEDED;
+		return CELL_OK;
 
 	case CELL_VIDEO_OUT_SECONDARY:
-		return CELL_VIDEO_OUT_SUCCEEDED;
+		return CELL_OK;
 	}
 
 	return CELL_VIDEO_OUT_ERROR_UNSUPPORTED_VIDEO_OUT;
@@ -97,11 +97,11 @@ s32 cellVideoOutGetConfiguration(u32 videoOut, vm::ptr<CellVideoOutConfiguration
 		config->aspect = Emu.GetGSManager().GetInfo().mode.aspect;
 		config->pitch = Emu.GetGSManager().GetInfo().mode.pitch;
 
-		return CELL_VIDEO_OUT_SUCCEEDED;
+		return CELL_OK;
 
 	case CELL_VIDEO_OUT_SECONDARY:
 
-		return CELL_VIDEO_OUT_SUCCEEDED;
+		return CELL_OK;
 	}
 
 	return CELL_VIDEO_OUT_ERROR_UNSUPPORTED_VIDEO_OUT;
diff --git a/rpcs3/Emu/SysCalls/Modules/cellVideoOut.h b/rpcs3/Emu/SysCalls/Modules/cellVideoOut.h
index eac1effdffba..84541bbee6b1 100644
--- a/rpcs3/Emu/SysCalls/Modules/cellVideoOut.h
+++ b/rpcs3/Emu/SysCalls/Modules/cellVideoOut.h
@@ -1,8 +1,8 @@
 #pragma once
 
-enum VideoErrorCode
+// Video Out Error Codes
+enum
 {
-	CELL_VIDEO_OUT_SUCCEEDED                      = 0,
 	CELL_VIDEO_OUT_ERROR_NOT_IMPLEMENTED          = 0x8002b220,
 	CELL_VIDEO_OUT_ERROR_ILLEGAL_CONFIGURATION    = 0x8002b221,
 	CELL_VIDEO_OUT_ERROR_ILLEGAL_PARAMETER        = 0x8002b222,