diff --git a/ggml/src/ggml-vulkan/ggml-vulkan.cpp b/ggml/src/ggml-vulkan/ggml-vulkan.cpp
index b2a54bd..3469f6f 100644
--- a/ggml/src/ggml-vulkan/ggml-vulkan.cpp
+++ b/ggml/src/ggml-vulkan/ggml-vulkan.cpp
@@ -302,6 +302,14 @@ static vk_device_architecture get_device_architecture(const vk::PhysicalDevice&
             return vk_device_architecture::OTHER;
         }
 
+        // Arrow Lake H (Arc 140T) misreports minSubgroupSize=8 despite being Xe2.
+        // Device-ID override to force Xe2 classification.
+        // See: https://github.com/ggml-org/llama.cpp/issues/20776
+        const uint32_t devid = props.deviceID;
+        if (devid == 0x7D51 || devid == 0x7D45) {
+            return vk_device_architecture::INTEL_XE2;
+        }
+
         vk::PhysicalDeviceProperties2 props2;
         vk::PhysicalDeviceShaderCorePropertiesAMD shader_core_props_amd;
         vk::PhysicalDeviceShaderIntegerDotProductPropertiesKHR integer_dot_props;
@@ -341,6 +349,14 @@ static vk_device_architecture get_device_architecture(const vk::PhysicalDevice&
             return vk_device_architecture::OTHER;
         }
 
+        // Arrow Lake H (Arc 140T) misreports minSubgroupSize=8 despite being Xe2.
+        // Device-ID override to force Xe2 classification.
+        // See: https://github.com/ggml-org/llama.cpp/issues/20776
+        const uint32_t devid = props.deviceID;
+        if (devid == 0x7D51 || devid == 0x7D45) {
+            return vk_device_architecture::INTEL_XE2;
+        }
+
         vk::PhysicalDeviceProperties2 props2;
         vk::PhysicalDeviceSubgroupSizeControlPropertiesEXT subgroup_size_control_props;