protonscr

Final Fantasy Tactics - The Ivalice Chronicles

protonopen appid 1004640Game compatibility - Unofficial
ValveSoftware/Proton#9078 · opened 2025-10-01 by astatide · updated 2025-10-03 · 8 comments · github · game page · search this game
Aastatide 2025-10-01 github

Compatibility Report

  • Name of the game with compatibility issues: Final Fantasy Tactics - The Ivalice Chronicles
  • Steam AppID of the game: 1004640

System Information

I confirm:

  • [X] that I haven't found an existing compatibility report for this game.
  • [X] that I have checked whether there are updates for my system available.

Symptoms

Game starts; a splash screen shows for a moment, before closing and a pop up with the word "Success." displays; you can press "OK" and the game ends.

Reproduction

Try to start the game under normal conditions and it fails with the above

Aastatide 2025-10-01 github

As a point of comparison, it launches just fine on the Steam Deck (but I can't really play it there, at the moment, as I am having troubles with my L1 shoulder button); I can provide details from the Deck, if desired, but I'm on the stable branch there.

Aastatide 2025-10-01 github

And well, switching to another branch of Proton (hotfix) let it start up.

FfebLey 2025-10-01 github

Yeah, the game needs Proton Hotfix for starting.

However I still have an issue when the tutorial hints are being displayed.
The background keeps flickering.
Here's a short clip

https://www.youtube.com/watch?v=2yaEbfd1eY8

GPU: AMD Radeon RT 9070 XT
DE: KDE Plasma 6.4.5
WM: KWin (Wayland)
Video driver version: Mesa 25.2.3
Kernel version: 6.17.0-3-cachys
Proton version: Proton Experimental

I can provide additional information if needed.

EDIT: Doesn't seem to happen on Steam Deck, maybe due to the game running in a Gamescope session.

Bbearoso 2025-10-01 github

Yeah, the game needs Proton Hotfix for starting.

However I still have an issue when the tutorial hints are being displayed. The background keeps flickering. Here's a short clip

https://www.youtube.com/watch?v=2yaEbfd1eY8

This can also be reproduced with the menu that pops up when you press the "start" button during battle. I've also noticed that in Gnome, the fullscreen window has rounded corners. So something with both the swapchain and direct scanout detection isn't working properly. This game uses DX12, and it reportedly requires a very recent feature level, so it's possible it's trying to do something novel.

EDIT:
Raw gamescope session on the framebuffer ala Steam Deck exhibits the flickering issue as well.

EDIT 2:
In your posted video, the flickering line near the top exhibits some tiling, so this might be a missing a synchronization barrier, either in the game itself or from VKD3D. I'm thinking something involving D3D12 enhanced barriers, given the recent driver requirements.

Ddoitsujin 2025-10-02 github

I haven't seen flickering on RDNA2, but synchronization bugs in games are common.

Crash on start should be fixed in BE now.

Bbearoso 2025-10-02 github

The flickering is gone on bleeding-edge. I suspected it might when I looked through some recent VKD3D-proton commits. 10.0 branch might be OK now that the startup crash is fixed. I'm not going to try though, since I've been locked out because of Denuvo twice.

FfebLey 2025-10-02 github

The flickering is gone on bleeding-edge. I suspected it might when I looked through some recent VKD3D-proton commits. 10.0 branch might be OK now that the startup crash is fixed. I'm not going to try though, since I've been locked out because of Denuvo twice.

Can confirm it's gone under Proton Experimental bleeding-edge

HHansKristian-Work 2025-10-03 github

Confirmed recent vkd3d-proton works around the flicker due to game bug with missing ClearUAV sync. We do that workaround by default now since clearly there's way too many games getting this wrong ...

Proton versions