Blender doesn't run with --gpu-backend vulkan flag on linux (ubuntu) #114385
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Reference: blender/blender#114385
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System Information
Operating system: Linux-6.2.0-32-generic-x86_64-with-glibc2.37 64 Bits, X11 UI
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 535.86.05
Blender Version
Broken: version: 4.1.0 Alpha, branch: main, commit date: 2023-10-31 18:59, hash:
fdd11aba68f7Worked: the same version, start blender without blender --factory-startup --gpu-backend vulkan
Short description of error
Blender doesn't run with --gpu-backend vulkan flag on linux (ubuntu 23.04). The outline of the program window appears and nothing happens. There is no program interface. By clicking on the cross in the corner, the window cannot be closed, but it closes if you close the terminal window in which the command to start the blender was entered. File blender.crash.txt is not created in /tmp folder.
Exact steps for others to reproduce the error
Start Blender with blender --factory-startup --gpu-backend vulkan on linux (ubuntu 23.04).
Thanks for the report, @Dmitry-Goryachev. As far as I know, Vulkan is supposed to work on Linux (as mentioned in
1aca58cf16)To better understand the problem,:
--gpu-backend vulkanand the--debug-gpuflag?A possible causes of the problem could be an incompatibility between the Vulkan backend and your graphics card or driver.
Apparently, this feature was implemented to get some insight on supported platforms. So, tagging @Jeroen-Bakker .
I mainly tested on Ubuntu LTS releases. Most of the times when the UI doesn't draw is because it is waiting for the Vulkan driver to send a signal to use the next image in the swap chain. (something technical and should work).
I want to investigate this issue more, so confirming for now.
@mano-wii
Today I updated Ubuntu components and video driver to the latest possible version provided by Nvidia.
System Information
Operating system: Linux-6.2.0-36-generic-x86_64-with-glibc2.37 64 Bits, X11 UI
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 535.129.03
The problem remains. By the way, Blender with Vulkan backend runs on Windows 11 with the same hardware. So it's not about the graphics card.
When I try to run Blender with the --gpu-backend vulkan and the --gpu-debug flag, the terminal displays the following.
I also had some problems with Ubuntu's NVIDIA drivers. I would bet using 545 directly from NVIDIA works. (It does for me.)
I've been experiencing this issue for a while, and while I don't think my testing adds anything new, it can't hurt. Attached is my system info and console logs for
--factory-startup --gpu-backend vulkan -d --debug-gpu, plus one with--debug-gpu-force-workaroundsadded. Just like the original report, a Blender window opens but is never drawn to, no crash file or dump is created, and Blender can only be closed by terminating/killing the process.Something I find notable that may be unique to my system is that when switching away from the Blender window (click or tab to anything else), all graphics freeze for ~1 second before returning to normal. If a video is running in the background, the audio will continue as normal during the freeze, but the video (like everything else) will hitch.
Just in case it helps any, I am running Arch with the Arch-official
nvidia-dkmsand the associated utility packages. This is not completely identical to if I were to use the driver installer from Nvidia directly, but it is still 545.29.06 at the end of the day.Im facing the same issue on Ubuntu 20.04.6 LTS focal.