diff --git a/src/drm.cpp b/src/drm.cpp
index 7776422..b7d822c 100644
--- a/src/drm.cpp
+++ b/src/drm.cpp
@@ -2122,6 +2122,8 @@ namespace gamescope
 			( m_Mutable.szMakePNP == "VLV"sv && m_Mutable.szModel == "ANX7530 U"sv ) ||
 			( m_Mutable.szMakePNP == "VLV"sv && m_Mutable.szModel == "Jupiter"sv ) ||
 			( m_Mutable.szMakePNP == "VLV"sv && m_Mutable.szModel == "Galileo"sv );
+		const bool bDeckHDDisplay =
+			( m_Mutable.szMakePNP == "DHD"sv && m_Mutable.szModel == "DeckHD-1200p"sv );
 		const bool bLegionGoDisplay =
 			( m_Mutable.szMakePNP == "LEN"sv && m_Mutable.szModel == "Go Display"sv );
 		const bool bLokiDisplay =
@@ -2148,6 +2150,11 @@ namespace gamescope
 				m_Mutable.ValidDynamicRefreshRates = std::span( s_kSteamDeckLCDRates );
 			}
 		}
+		else if ( bDeckHDDisplay )
+		{
+			m_Mutable.eKnownDisplay = GAMESCOPE_KNOWN_DISPLAY_STEAM_DECK_LCD_DHD;
+			m_Mutable.ValidDynamicRefreshRates = std::span( s_kSteamDeckLCDRates );
+		}
 		else if ( bLegionGoDisplay )
 		{
 			m_Mutable.ValidDynamicRefreshRates = std::span( s_kLegionGoRates );
@@ -2309,7 +2316,7 @@ namespace gamescope
 				.uMinContentLightLevel = nits_to_u16_dark( 0 ),
 			};
 		}
-		else if ( eKnownDisplay == GAMESCOPE_KNOWN_DISPLAY_STEAM_DECK_LCD )
+		else if ( eKnownDisplay == GAMESCOPE_KNOWN_DISPLAY_STEAM_DECK_LCD || GAMESCOPE_KNOWN_DISPLAY_STEAM_DECK_LCD_DHD)
 		{
 			// Set up some HDR fallbacks for undocking
 			return BackendConnectorHDRInfo
diff --git a/src/gamescope_shared.h b/src/gamescope_shared.h
index ed30d8c..f53ed4a 100644
--- a/src/gamescope_shared.h
+++ b/src/gamescope_shared.h
@@ -8,6 +8,7 @@ namespace gamescope
 	{
 		GAMESCOPE_KNOWN_DISPLAY_UNKNOWN,
 		GAMESCOPE_KNOWN_DISPLAY_STEAM_DECK_LCD,      // Jupiter
+		GAMESCOPE_KNOWN_DISPLAY_STEAM_DECK_LCD_DHD,  // Jupiter DeckHD
 		GAMESCOPE_KNOWN_DISPLAY_STEAM_DECK_OLED_SDC, // Galileo SDC
 		GAMESCOPE_KNOWN_DISPLAY_STEAM_DECK_OLED_BOE, // Galileo BOE
 	};
diff --git a/src/modegen.cpp b/src/modegen.cpp
index d174c2d..bfb782d 100644
--- a/src/modegen.cpp
+++ b/src/modegen.cpp
@@ -356,6 +356,18 @@ void generate_fixed_mode(drmModeModeInfo *mode, const drmModeModeInfo *base, int
 			mode->vsync_end = 1314;
 			mode->vtotal = 1322;
 		}
+		else if ( eKnownDisplay = gamescope::GAMESCOPE_KNOWN_DISPLAY_STEAM_DECK_LCD_DHD )
+		{
+			mode->hdisplay = 800;
+			mode->hsync_start = 840;
+			mode->hsync_end = 860;
+			mode->htotal = 884;
+
+			mode->vdisplay = 1280;
+			mode->vsync_start = 1298;
+			mode->vsync_end = 1312;
+			mode->vtotal = 1334;
+		}
 
 		mode->clock = ( ( mode->htotal * mode->vtotal * vrefresh ) + 999 ) / 1000;
 	}