diff --git a/appendices/VK_EXT_physical_device_drm.adoc b/appendices/VK_EXT_physical_device_drm.adoc
index 72bcfed20..564272892 100644
--- a/appendices/VK_EXT_physical_device_drm.adoc
+++ b/appendices/VK_EXT_physical_device_drm.adoc
@@ -7,7 +7,7 @@ include::{generated}/meta/{refprefix}VK_EXT_physical_device_drm.adoc[]
 === Other Extension Metadata
 
 *Last Modified Date*::
-    2021-06-09
+    2024-11-07
 *IP Status*::
     No known IP claims.
 *Contributors*::
@@ -25,16 +25,22 @@ Unlike the EGL extension, this extension does not expose a string containing
 the name of the device file and instead exposes device minor numbers.
 
 DRM defines multiple device node types.
-Each physical device may have one primary node and one render node
-associated.
-Physical devices may have no primary node (e.g. if the device does not have
-a display subsystem), may have no render node (e.g. if it is a software
-rendering engine), or may have neither (e.g. if it is a software rendering
-engine without a display subsystem).
+Each physical device can only be associated with a single underlying DRM
+device, which have one primary node and may have one render node.
+
+A physical devices always has the primary node if it is associated with a DRM
+device. It may have no render node if e.g. it uses a software rendering engine.
 
 To query DRM properties for a physical device, chain
 slink:VkPhysicalDeviceDrmPropertiesEXT to slink:VkPhysicalDeviceProperties2.
 
+[NOTE]
+====
+This extension only returns primary node and render node from the same
+DRM device for a Vulkan physical device. Implementations should not return
+primary node and render node from different DRM devices.
+====
+
 include::{generated}/interfaces/VK_EXT_physical_device_drm.adoc[]
 
 === References
@@ -44,5 +50,9 @@ include::{generated}/interfaces/VK_EXT_physical_device_drm.adoc[]
 
 === Version History
 
+  * Revision 2, 2024-11-07
+  ** Clarification about the meaning of the primary node
+  ** Clarification to not advertise more than one DRM device
+
   * Revision 1, 2021-06-09
   ** First stable revision
diff --git a/xml/vk.xml b/xml/vk.xml
index 86d497ece..4d772730d 100644
--- a/xml/vk.xml
+++ b/xml/vk.xml
@@ -22497,7 +22497,7 @@ typedef void* <name>MTLSharedEvent_id</name>;
         </extension>
         <extension name="VK_EXT_physical_device_drm" number="354" author="EXT" type="device" contact="Simon Ser @emersion" supported="vulkan" depends="VK_KHR_get_physical_device_properties2,VK_VERSION_1_1">
             <require>
-                <enum value="1"                                             name="VK_EXT_PHYSICAL_DEVICE_DRM_SPEC_VERSION"/>
+                <enum value="2"                                             name="VK_EXT_PHYSICAL_DEVICE_DRM_SPEC_VERSION"/>
                 <enum value="&quot;VK_EXT_physical_device_drm&quot;"        name="VK_EXT_PHYSICAL_DEVICE_DRM_EXTENSION_NAME"/>
 
                 <enum offset="0" extends="VkStructureType" name="VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DRM_PROPERTIES_EXT"/>