CK3 crashes on start-up when launched via Vulkan and/or runs really choppy and stuttery until it crashes (ONLY IF STARTED VIA VULKAN)

[Azmorian]

Checklist [README]

• Device is not undervolted nor overclocked
• Device is using the latest drivers
• Game is not cracked, modded and use the latest patch

Game [Required]

Crusader Kings 3

Game Platform [Required]

• Steam
• Microsoft Store
• GOG Galaxy
• Ubisoft Connect
• Battle.net
• Epic Games
• Rockstar Games Launcher
• EA app
• Amazon Games app
• Other (please specify)

Other game platform

No response

Processor / Processor Number [Required]

Ryzen 5 5600

Graphic Card [Required]

Intel Arc A750 LE

GPU Driver Version [Required]

31.0.101.5382

Other GPU Driver version

No response

Rendering API [Required]

• Vulkan
• OpenGL
• DirectX12
• DirectX11
• DirectX10
• DirectX9

Windows Build Number [Required]

• Windows 11 23H2
• Windows 11 22H2
• Windows 11 21H2
• Windows 10 22H2
• Windows 10 21H2
• Other (Please specify)

Other Windows build number

No response

Intel System Support Utility report

igcit_ssu.txt

Description and steps to reproduce [Required]

If you select the launch via Vulkan setting in the settings on the launcher and then start the game, the game will either crash on boot up or crash while playing. There is no specific moment this happens, it just does. If it doesn't crash right on start up the game will run really choppy and just not nearly as good as with DX11; and it already isn't running as well as it should be on DX11 (no surprise ofc). Needless to say that running games on Vulkan mostly worked wonders for Arc, so this feels very weird and would be great if there is a fix for that!

Game graphic quality [Required]

• Low
• Medium
• High
• Ultra

Game resolution [Required]

1920x1080

Game VSync [Required]

Off

Game display mode [Required]

• Fullscreen
• Windowed
• Borderless Windowed

Detailed game settings [Required]

Tried several settings, it seems like this isn't bound to a specific set of settings. Went from highest to lowest.

Device / Platform name

No response

Crash dumps [Required, if applicable]

No response

Save game

No response

[Vivek-Intel]

@Azmorian thanks for reporting the issue. are using MSAA x16 when in Vulkan mode ? can you set it to x4 and check if it still crashes. Meanwhile we will try to simulate it in our lab.

[Azmorian]

@Vivek-Intel okay during my last session to my surprise my game didn't crash at all that time. That's a first; I will play again today and see how it goes. My graphics settings were on mostly medium quality, I also used MSAA x4 that time.

With that said, while it didn't crash the performance was quite bad still. Even with settings on medium-ish I cannot get consistent 144 fps on 1920x1080 and usually roam around 90-120 most of the time with only isolated moments of straight 144 fps. That's surprisingly low :(

[Azmorian]

Just played again and had another crash. I think this time it was due to lots of troops on the map since there was a crusade going on. I never crashed in this scenario on DX11, so this seems to be clearly an issue when playing via vulkan

[Vivek-Intel]

@Azmorian this game has performance issues with Vulkan and it turned out to be an issue from game side.
Please refer to article and we suggest to play this game in DX11 to avoid issues when playing in Vulkan mode.

[Vivek-Intel]

@IGCIT please help close this thread.