vkcapture breaks when a single app spawns multiple windows

[phly95]

Describe the bug

If you have an app that spawns multiple Vulkan windows (eg. Azahar with the separate windows layout, currently the proton/Windows version doesn't crash like the Linux version due to window handling differences, or perhaps Cemu with gamepad view, though I only tested Azahar) it gets confused and starts rapidly outputting that the capture is starting and freeing.

Screenshots or video

System (please complete the following information):

• OS: Bazzite
• GPU: Steam Deck OLED
• Mesa version: See below:

bazzite@bazzite:~$ glxinfo -B | grep "OpenGL version"
OpenGL version string: 4.6 (Compatibility Profile) Mesa 25.2.4
bazzite@bazzite:~$ rpm -qa | grep mesa-dri-drivers
mesa-dri-drivers-25.2.4-2.fc42.x86_64
mesa-dri-drivers-25.2.4-2.fc42.i686

• obs-vkcapture version: See below:

bazzite@bazzite:~$ rpm -qa | grep vkcapture
obs-vkcapture-common-0.0.git.357.d9b6d49a-1.fc42.noarch
libobs_vkcapture-0.0.git.357.d9b6d49a-1.fc42.x86_64
libobs_vkcapture-0.0.git.357.d9b6d49a-1.fc42.i686
bazzite@bazzite:~$ flatpak list | grep vkcapture
bazzite@bazzite:~$ 



[obs-vkcapture] Init Vulkan 1.5.1 (64bit)

OBS log:

This is a bug with the vkcapture itself, not with OBS.

Game log:

chdir "/home/bazzite/Downloads/azaharplus-2123.3-A-windows/"
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Game Recording - would start recording game 13055999843074310144, but recording for this game is disabled
Adding process 28138 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
pid 28140 != 28138, skipping destruction (fork without exec?)
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
pid 28139 != 28138, skipping destruction (fork without exec?)
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28141 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28142 for gameID 13055999843074310144
Adding process 28143 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
fsync: up and running.
Adding process 28144 for gameID 13055999843074310144
Adding process 28145 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28148 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28150 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28156 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28168 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28173 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28180 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28220 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28238 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28256 for gameID 13055999843074310144
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/var/home/bazzite/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 28257 for gameID 13055999843074310144
Adding process 28258 for gameID 13055999843074310144
pid 28146 != 28145, skipping destruction (fork without exec?)
Adding process 28357 for gameID 13055999843074310144
Adding process 28358 for gameID 13055999843074310144
Adding process 28359 for gameID 13055999843074310144
fsync: up and running.
Adding process 28360 for gameID 13055999843074310144
Adding process 28363 for gameID 13055999843074310144
Adding process 28365 for gameID 13055999843074310144
Adding process 28368 for gameID 13055999843074310144
Adding process 28378 for gameID 13055999843074310144
Adding process 28383 for gameID 13055999843074310144
Adding process 28390 for gameID 13055999843074310144
[obs-vkcapture] Init Vulkan 1.5.1 (64bit)
Adding process 28423 for gameID 13055999843074310144
Adding process 28443 for gameID 13055999843074310144
[obs-vkcapture] Init Vulkan 1.5.1 (64bit)
[obs-vkcapture] Init GLX 1.5.1 (64bit)
[obs-vkcapture] Init Vulkan 1.5.1 (64bit)
[obs-vkcapture] Init Vulkan 1.5.1 (64bit)
[obs-vkcapture] Init Vulkan 1.5.1 (64bit)
Fossilize INFO: Overriding serialization path: "/var/home/bazzite/.local/share/Steam/steamapps/shadercache/3039836847/fozpipelinesv6/steamapprun_pipeline_cache".
01/03 12:17:59 minidumps folder is set to /tmp/dumps
01/03 12:17:59 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(20251223222028)/tid(28621)
01/03 12:17:59 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(1.0)/tid(28621)
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------
[obs-vkcapture] Texture VK_FORMAT_B8G8R8A8_UNORM 1706x607
[obs-vkcapture] ------------------ vulkan capture started ------------------
[obs-vkcapture] ------------------- vulkan capture freed -------------------