Please describe your issue as accurately as possible. Include screenshots or videos if relevant
for several months of testing UE5, proton 10, proton 11, FSR4, and tweaking LACT and grub kernel configs, i have been trying to narrow down games crashing.
i can easily run a benchmark for hours
i can run most unity games at 4K60

as soon as i start a UE5 game on proton 10, 11, experimental, or proton-cachyos
the game will eventually crash between 1-30 minutes
sometimes immediately as the menu launches
sometimes waiting and watching the LACT or AMDGPU_TOP

i can do no further than narrow down that vkd3d-proton is causing an issue
this has been on going since kernel 6.14, mesa 24.x, proton 10
if it is mesa as many reports suggest on gitlab issues
or AMD firmware or amdgpu kernel! WHO KNOWS ANYMORE
i have even tested with nerfing the SCLK and PWR using LACT (BELOW STOCK CLOCKS)
my thermals are within spec, GPU never hits above 90C. CPU maintains throttling with edge_junction at or below 100C --- stupid hot laptop. i can somewhat control temperatures by power saving or reducing PWR etc. this does not prevent crashes and is not the cause (not overheating)

Software information

Name of the game, settings used etc.
unreal engine 5, DX12 -- vkd3d-proton
many games, here is one:
Gothic Remake (DEMO)

System information

AMD Ryzen 9 7945HX
GPU AMD Radeon RX 7900M navi31
Mesa 26.1.3 - kisak-mesa
Vulkan 1.4.350
Linux 7.1.2-amdr18
gcc (Ubuntu 15.2.0-16ubuntu1) 15.2.0
Ubuntu 26.04 LTS

• GPU:AMD Radeon RX 7900M navi31 (RDNA3)
• Driver:26.1.3 - kisak-mesa
• Wine version: proton 10.0-4, proton 11+, proton experimental, proton-cachyos-11.0-20260602-slr-x86_64_v3, experimental-bleeding-edge-11.0-389079-20260701-p918c96-w9f7ab6-deea51b-v423207
• VKD3D-Proton version:
  1213.597:0138:013c:info:vkd3d-proton:vkd3d_get_vk_version: vkd3d-proton - applicationVersion: 3.1.0.
  1213.597:0138:013c:info:vkd3d-proton:vkd3d_instance_init: vkd3d-proton - build: 4232071c346c0a7.

Log files

Please attach Proton or Wine logs as a text file:

• When using Proton, set the Steam launch options for your game to PROTON_LOG=1 %command% and attach the corresponding steam-xxxxx.log file in your home directory.
• When using regular Wine, use wine game.exe > game.log 2>&1 and attach the resulting game.log file.
  dmesg.txt & gothic proton_log=1

steam-3448280.log

amd_ring_dmesg.txt

today i tweaked again trying to find ANYTHING the grub kernel config options:
GRUB_CMDLINE_LINUX_DEFAULT="plymouth.debug plymouth.enable=0 systemd.show_status=1 ipv6.disable=1 preempt=full threadirqs amd_pstate=guided pcie_aspm=off amdgpu.gfx_off=0 amdgpu.ignore_min_pcap=1 amdgpu.gpu_recovery=1 amdgpu.lockup_timeout=10000 iommu=pt amdgpu.dcdebugmask=0x10 amdgpu.ppfeaturemask=0xfffd7fff"

i can go and use the default base repo Kernel with no kernel config options
these games will still crash