I've updated the description with the gist.

Works fine. Arch Linux.
Sysinfo: https://gist.github.com/XakepSDK/7b776121c7704ff47e116d9c28898a3c

I had trouble with 2 screen setup - after alt-tabbing, while game was in intro state, game window moved to second screen, but mouse was locked in first screen and main menu UI click-boxes were on first screen.
tl;dr - image was on second screen, all interactions with UI were on first screen

Are you able to hear the audio?

Yes, i can. Last 3 switches in settings menu are disabled and forced to off state.
Also, mouse is very very horrible in-game, it feels like reverse acceleration.

The issue is that vertical mouse movements are very bad, horizontal is ok. If i move mouse vertically(in-game, not in menu), mouse slow downs.
If i move mouse just horizontally, it's fine, if i move mouse vertically only - vertical movement slow downs.
If i move mouse vertically and horizontally, even horizontal movement slow downs. Feels like dash moving.
Also, i experienced this in other games too - stalker shadow of Chernobyl for example, but this was no so horrifying. I think, these mouse 'bugs' have same source.

Game just closed after first level.(ends in helicopter)

Small update to my earlier report #1389 with some extra information:

I tried putting all graphics and CPU settings to "Low" in game, but the slowdown was unaffected.

I also tried Vanilla Wine via Lutris (Which had no special fixes, just installed steam and downloaded) and the slowdown was not present, so this appears to be a Proton specific regression.

Also, sorry @kisak-valve. Figured this wouldn't apply since I'm not experiencing the issues reported by @d10sfan. I'll keep it in mind for any future reports I make.

I’m also experiencing mouse stuttering with FEAR.

The brightness slider also has no effect on the brightness of the game.

https://github.com/shoober420/linux-scripts/blob/main/home/shoober420/sysinfonvidia

Proton 3.7-6 beta

Here's a video of the mouse problem, as I'm experiencing it. That's what happens when moving the mouse at a constant velocity. Here's a heavily trimmed log of it running, had to remove tons of loading/unloading dinput8.dll to fit within file size limit on uploads here.

• GPU: 1080 Ti
• Driver/LLVM version: 396.54.09
• Kernel version: 4.15.0
• Link to full system information report as Gist: https://gist.github.com/necuz/ed8fdb2dd3a4259ab8be6867847dfc4d
• Proton version: Proton 3.16-2

Edit: I should say that the game works fine on Windows 10, though at like 2-3x the fps so that might be masking the issue if it also exists there.

Edit 2: Using native dinput8.dll feels better, but only when running at obscenely high fps, with VSync the game is unplayable (way worse than what's shown in the video).

Mouse stutters only when you move it down.
Running game through XWayland solves this trouble for me.

I am also experiencing the no audio bug in tandem with the first level stuck glitch. The common solution (extracting WMFadist.exe, copying l3codeca.acm) does not work for me.

Update: I was able to fix this issue by installing a package with 32-bit mp3 support (specifically this).

As a note, the libmpg123-0:i386 fix doesn't appear to be the cause of the stuttering issue for me, as I already have that package installed. I could try running this on an Intel PC, as it shows as Gold on https://www.protondb.com/app/21090, and threadripper isn't very well represented there (for instance, there's a known bug where Fallout 4 won't progress past the start screen on it in proton).

Game works great on this end.

I'm still personally having the slowdown issue, but that may be an issue specific to my hardware (My first guess would be that it doesn't like high thread count CPUs?). I'll post a log when I get home today.

@kisak-valve

Here's my proton log

My system info:

and a link to a video I made showing the issue I'm seeing. I'm getting massive framedrops whenever the enemies in the benchmark start shooting, for example.

Proton 4.2-2, i still have weird mouse issues. It's feels strange, slowdowns when moving mouse down.

I still have those mouse issues too. I may say that the mouse input code is just poop.

Okay, so it appears setting "Max software sounds" to minimum under performance mostly resolves the issue. The framerate is still lower than I think it should be but it fixes the framerate dropping to 1-2fps.

Edit: This isn't quite true. It definitely helps a ton, but when multiple enemies are shooting it still drops down to single digit framerates from time to time. I think this is the cause, however.

Here's the log without the framedrops, if it helps.

steam-21090.zip

Compatibility Report

• Name of the game with compatibility issues: F.E.A.R.
• Steam AppID of the game: https://steamdb.info/app/21090/

System Information

• GPU: GTX 760
• Driver/LLVM version: NVIDIA 440.36
• Kernel version: 5.3.13
• https://github.com/shoober420/linux-scripts/blob/main/home/shoober420/sysinfonvidia
• Proton version: 4.11-8

Symptoms

Everything is ok, except the mouse input. Its very stuttery and laggy. Literally unplayable to me. There has been mouse input issues with this game since trying this on Wine/Proton. I used "PROTON_USE_D9VK=1" to enable the Vulkan wrapper.

This bug is only apparent for people who use higher polling rates on their mouse. It’s a bug in the engine. More info here:

https://bugs.winehq.org/show_bug.cgi?id=38637

Reproduction

Play the Game, move around the mouse

Whitelist Request

• Name of the game to be whitelisted: F.E.A.R.
• Steam AppID of the game: https://steamdb.info/app/21090/

System Information

• GPU: GTX 760
• Driver/LLVM version: NVIDIA 440.44
• Distro version: Arch
• https://github.com/shoober420/linux-scripts/blob/main/home/shoober420/sysinfonvidia
• Proton version: 4.11-11

Works great out of the box. Mouse stutter bug is now gone. Still highly recommend to use "PROTON_USE_D9VK=1".

FEAR works wine with Proton 4.11 but after upgrading Proton to 5.0 the game started to crash every time when I load a savestate. I switched back to 4.11, it's working now again.

That's strange, but after I switched Proton to 5.0 again, I had no crashes so far. Probably because it was a different level? I had rewritten those save files.
But I got another issue. Weapons look transparent in the player's hands. It didn't happen with 4.11.

steam-21090.zip

With this option everything is fine. It seems even the framerate is now higher than before.

Game crashes when starting new game. Proton 5.0-2.
steam-21090.log

@kisak-valve yes, this helps

Does not work with DXVK. Works with WineD3D. Proton 5.0-9
Proton log: https://gist.github.com/XakepSDK/5b5296fe554a2042aa5818b005284c64

If you have black screen with DXVK, just wait few mins and/or alt+tab few times. This fixed black screen issue for me. Next start after "fixing" black screen this way was without issue.

Revisiting this.

With Proton 7.0 using PROTON_USE_WINED3D=1 to correct weapon and character model transparency now results in weird looking shadows. Best way I can describe it is that despite running with 32 bit color mode, it appears as if its rendering in 16 bit.

Without this environment variable, transparent models are still an issue.

@vide0hanz If you can then also post in the upstream issue including your system info like GPU and driver version.

@vide0hanz If you can then also post in the upstream issue including your system info like GPU and driver version.

@Blisto91 done

Thanks, it's now working for me on latest Proton 10 release!