Raytracing vulkan capabilities for intel ARC gpus is not enabled by default on Mesa 25

[nplevr]

I have just noticed that Raytracing vulkan support for intel ARC gpus is still disabled with mesa 25 why?

I remember I had to build mesa 24.x from source with intel-clc=enabled in order to enable vulkan support but didn’t try again with mesa 25.

I also see in Mesa 25 there is a specific flag for intel rt:https://gon.builditlab.freedesktop.org/mesa/mesa/-/blob/staging/25.0/mes

[malcolmlewis]

@nplevr Hi and welcome to the Forum
In what context is this requirement, coding? Your likely going to have to ping the openSUSE Mesa maintainers to see if it can be enabled, or why not…

https://en.opensuse.org/openSUSE:Submitting_bug_reports

[nplevr]

Thanks for the reply, well it’s not a bug it’s just a new feature (raytracing) of the new intel ARC integrated & discrete GPUs that has an on/off build switch and I think it should be enabled by default on openSUSE Mesa build for Tumbleweed like the other drivers, amdgpu for example.

[malcolmlewis]

@nplevr Normally one would branch, update and submit, but even though a feature, still likely needs tracking in a bug report…

FWIW I have Arc (A380) here and for Blender oneAPI Raytracing I packaged up intel-level-zero-gpu-raytracing to enable… I use Nvidia for Vulkan…

[nplevr]

Blender oneAPI Raytracing is just a library but without Vulkan support of raytracing it doesn’t work. The mesa intel build switches you see above enable raytracing support on the ANV (intel) vulkan driver.

BTW I have filled the request: https://bugzilla.opensuse.org/show_bug.cgi?id=1238732

[Svyatko]

https://bugzilla.opensuse.org/show_bug.cgi?id=1238732#c1

Stefan Dirsch 2025-03-07 17:08:31 UTC

done

Request 1251244: Submit Mesa - openSUSE Build Service

[malcolmlewis]

@nplevr Seems to be working…

[jsmith64]

I assume it’s working pretty well.
It shows my A750 beating the 3060 Ti. I don’t really care other than knowing mine is configured properly.

DemoName	Platform	Renderer	ApiVersion	Width	Height	Fullscreen	AntiAliasing	Duration	MaxGpuTemp	Score	AvgFPS	MinFPS	MaxFPS
Vulkan - Raytracing	Linux (X11) 5.4.0-58-generic 64-bit	GeForce RTX 3060 Ti	1.2.155	1920	1080	NO		10000	0	440	43	1	45
Vulkan - Raytracing	Linux (X11) 6.13.5-1-default 64-bit	Intel(R) Arc(tm) A750 Graphics (DG2)	1.4.305	1920	1080	NO		10000	0	561	56	1	57
Vulkan - Raytracing	Linux (X11) 6.13.5-1-default 64-bit	Intel(R) Arc(tm) A750 Graphics (DG2)	1.4.305	1920	1080	NO		10000	0	559	55	1	57
Vulkan - Raytracing	Linux (X11) 6.13.5-1-default 64-bit	Intel(R) Arc(tm) A750 Graphics (DG2)	1.4.305	1920	1080	NO		10000	0	563	56	1	58
Vulkan - Raytracing	Linux (X11) 6.13.6-1-default 64-bit	Intel(R) Arc(tm) A750 Graphics (DG2)	1.4.305	1920	1080	NO		10000	0	555	55	1	57

[Svyatko]

@jsmith64

GeForce RTX 3060 Ti 1.2.155

But I expect Vulkan 1.3 - possibly problems with driver.

[nplevr]

Nice! My regards to the opensuse team!