Thank you for the clarification and for confirming the root cause.

For completeness, I would like to note that a BUILD_VMWGFX-enabled
version of the VMware Xorg driver is still fully functional in my test
environment.

The following features are currently working correctly:

* dynamic guest resize
* multi-monitor layout changes
* vmwgfx DRM integration
* DRI2
* DRI3
* Render acceleration
* OpenGL via SVGA3D

Relevant log entries include:

* "Gallium3D XA version: 2.5.0"
* "Render acceleration is enabled"
* "Direct rendering (DRI2 3D) is enabled"
* "Direct rendering (DRI3 3D) is enabled"

The guest also correctly performs automatic display resizing and dynamic
resolution changes through the VMware display stack.

One additional observation is that there appears to be a significant
practical difference between:

* a BUILD_VMWGFX-enabled configuration, where core VMware guest
integration features remain available, including dynamic display
resizing, vmwgfx integration, Render acceleration, DRI2 and DRI3
support;

and

* the current fallback configuration without BUILD_VMWGFX support, where
those VMware-specific display capabilities are no longer available.

From an end-user perspective, the BUILD_VMWGFX-enabled configuration
still provides a functional VMware graphics stack, even if some advanced
functionality depends on components that are now considered obsolete.

Therefore, while I understand that the driver currently depends on XA
and requires maintenance work to remain buildable with modern Mesa
versions, it may be useful to note that the driver itself still appears
functional when built with BUILD_VMWGFX support enabled.

I am adding this information mainly for future users who may encounter
this report while investigating VMware guest display, resize or
acceleration issues.

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https://bugs.launchpad.net/bugs/2154640

Title:
  xserver-xorg-video-vmware 13.4.0-2 appears to be built without
  BUILD_VMWGFX support

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