https://bugs.documentfoundation.org/show_bug.cgi?id=166122

--- Comment #17 from V Stuart Foote <[email protected]> ---
(In reply to Jim Avera from comment #16)
> 25.2.0.0.alpha1 (the earliest 25.x release) DOES have the problem.
> 
> So whatever is causing this was introduced between 24.8.6.2 and
> 25.2.0.0.alpha1

Guess that's possible. 

If I'm reading cgit correctly, the LO 24.8 release is entirely on the skia m116
build. While for the LO 25.2 release skia has been updated to the m130 build.
While builds of master against the 25.8 release have just been updated to skia
m136 build. Accompanied by LO patching adjustments at each.

The way in which LO Graphics test failures and rendering fallback proceeds
could certainly be an issue. In your VM case, would depend on the VirtualBox
VMSVG graphics emulation, even on a supported GPU. I'm not sure the UHD
Graphics 630 with igx Intel drivers installed to the VM should be considered
supported--and probably be LO denylisted to bypass the graphics testing.

Otherwise, the vulkaninfo from the VulkanSDK is supported by all GPU vendors.
That it does not show for you in a VirtualBox VM (the VMSVG uses generic
drivers Oracle provides) suggesting there is limited Vulkan support provided to
the VM, and likely limited emulated igx/skia rendering support for the VM. 

You might check the VM's Display -> Screen -> Extended Features: -> Enable 3D
Acceleration check box to see how that behaves.

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