commit aedfa981065793673eaade6645490aedb043df59
Author: Jeroen Bakker <jeroen@blender.org>
Date:   Mon Dec 22 13:39:27 2025 +0100

    HgiVulkan: Incorrect Surface Check
    
    The current code only checks if the base surface extension is available,
    but doesn't check if the platform specific surface extension is
    available. Resulting in the `_hasPresentation` to be set in cases where it
    shouldn't.
    
    Detected when trying to render via SSH using Vulkan.
    See https://projects.blender.org/blender/blender/issues/149631 for
    information.
    
    Revert instance changes

diff --git a/pxr/imaging/hgiVulkan/device.cpp b/pxr/imaging/hgiVulkan/device.cpp
index 4d6c3ec05..6900849a7 100644
--- a/pxr/imaging/hgiVulkan/device.cpp
+++ b/pxr/imaging/hgiVulkan/device.cpp
@@ -62,6 +62,10 @@ _SupportsPresentation(
                     physicalDevice, familyIndex);
 #elif defined(VK_USE_PLATFORM_XLIB_KHR)
         Display* dsp = XOpenDisplay(nullptr);
+        // Allow headless rendering
+        if (dsp == nullptr) {
+            return true;
+        }
         VisualID visualID = XVisualIDFromVisual(
             DefaultVisual(dsp, DefaultScreen(dsp)));
         return vkGetPhysicalDeviceXlibPresentationSupportKHR(