protonscr

Call of Cthulu

protonopen appid 399810Game compatibility - UnofficialXAudio2
ValveSoftware/Proton#7407 · opened 2024-01-14 by Ceystyle · updated 2024-02-26 · 6 comments · github · game page · search this game
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CCeystyle 2024-01-14 github

Compatibility Report

  • Name of the game with compatibility issues: Call of Cthulu
  • Steam AppID of the game: 399810

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.

steam-399810.log

Symptoms

The game menu screen and video sequences are broken with Proton Experimental in Call of Cthulu. Everything works fine with Proton 8.0-4.

Game menu in Proton Experimental:
CallOfCthuluBad_StartScreen

Game menu in Proton 8.0-4:
CallOfCthuluGood_StartScreen

The same happens in the first video sequence after starting a new game.

First video sequence in Proton Experimental:
CallOfCthuluBad_Opening

First video sequence in Proton 8.0-4:
CallOfCthuluGood_Opening

It looks like as if the right side of the screen is somehow mirrored to the left and the other half is constantly flickering.

CCeystyle 2024-01-14 github

The issue also does not appear with Proton-8.0-5-rc3.

CCeystyle 2024-01-16 github

I did a regression test and the result was:

4e2d1f1d2ed6e57de9103c0fd43bce88e3ad4792 is the first bad commit
commit 4e2d1f1d2ed6e57de9103c0fd43bce88e3ad4792
Author: Zebediah Figura [email protected]
Date: Fri Jun 2 16:37:42 2023 +0200

winegstreamer: Set the MF_MT_DEFAULT_STRIDE attribute in mf_media_type_from_wg_format().

Unfortunately, this commit does not cleanly revert on top of current HEAD. But the previous commit afd17dcfb40a136eedb26aacde6625cf654d265 does not show this issue.

Aalasky17 2024-01-16 github

@Ceystyle Thank you for the bisect! We are looking into the regression and hopefully will find a fix soon :)

CCeystyle 2024-02-24 github

Unfortunately Proton 9.0 (beta) shows this bug, too.

Aalasky17 2024-02-26 github

@Ceystyle Indeed :( Unfortunately the bug is somewhat "inherent" in the way video playback works on proton-stable. There is an alternative in Proton - Experimental - hopefully the video playback is fixed for you there? There is a fix in experimental-bleeding-edge that solves all known video playback issues with this game in our testing so far.

CCeystyle 2024-02-26 github

@alasky17 Thanks for the update. The video playback is indeed fixed in Proton Experimental bleeding-edge.

Proton versions