Unreal Engine 5.6 Freezes on linux

Development Rendering
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1

Hi, When I run Ue5.6 on linux it freezes, advances 3 frames, freezes back, crashes. I have a 7900 GRE, 7600X, 32gb ddr5.
The Blank Project works fine but i want to use all the new template features.

2

Hi,

I’m running into some of the same issues after startup—every time I try to open the Plugins window and click “Edit,” Unreal Engine 5.6 freezes. I’m using Windows with a Ryzen 9 7950X, Radeon RX 7800 XT, and 32GB of DDR5 RAM. The Blank Project runs fine, but when I open one of the new template projects, the engine freezes after a few frames and either crashes or becomes unresponsive. I want to use the built-in Metahuman.

Any help would be appreciated.

Thanks,

Zachary

3

Hi, I also can confirm this. Template hangs and blank project runs fine. Also, I see this in systemd journal:

Jun 21 01:28:15 archpc kernel: amdgpu 0000:2d:00.0: amdgpu: ring gfx_0.0.0 timeout, but soft recovered
Jun 21 01:28:15 archpc kernel: amdgpu 0000:2d:00.0: amdgpu: [drm] Check your /sys/class/drm/card1/device/devcoredump/data
Jun 21 01:28:15 archpc kernel: amdgpu 0000:2d:00.0: amdgpu: [drm] AMDGPU device coredump file has been created
Jun 21 01:28:15 archpc kernel: amdgpu 0000:2d:00.0: amdgpu: Dumping IP State Completed
Jun 21 01:28:15 archpc kernel: amdgpu 0000:2d:00.0: amdgpu: Dumping IP State

Hardware: Ryzen R7 PRO 3700 / 32Gb / Radeon RX 6700 XT
Software: Arch with 6.15.2 kernel and Vulkan 1.4.311 on radv (Mesa 25.1.3). Happens both on Wayland and X11.

4

A little bit further googling, and I stumbled upon this thread with a workaround:

RADV_DEBUG=hang ./path/to/UnrealEditor

And it works.
Posting just in case if you or anyone who end up here haven’t seen this yet