dxvk::DxvkError when trying to launch Proton games

[thatLeaflet]

Describe the bug Note: I first reported this bug in this thread, but am making it into a new report because it seems unrelated to the /mnt issue as it occurs whether the game is in /mnt or in my home directory.

When trying to launch any Proton game, the game immediately terminates due to a dxvk:DxvkError. At most, I can get a quick glance at the game's installer. So far, the games I've tested are: Cyberpunk 2077, Fallout New Vegas, Fallout 3, and My Name is Mayo.

To Reproduce Steps to reproduce the behavior:

1. Try to launch any Proton game
2. Game almost immediately crashes, log shows a dxvk:DxvkError

Expected behavior The game will launch

Environment
Please provide the output of the following commands:

snap info steam

name:      steam
summary:   Launcher for the Steam software distribution service (Early Access)
publisher: Canonical✓
store-url: https://snapcraft.io/steam
contact:   https://github.com/canonical/steam-snap
license:   unset
description: |
  Steam is a software distribution service with an online store, automated
  installation, automatic updates, achievements, SteamCloud synchronized
  savegame and screenshot functionality, and many social features.
commands:
  - steam
snap-id:      NeoQngJVBf2wKC48bxnF2xqmfEFGdVnx
tracking:     latest/edge
refresh-date: 2 days ago, at 13:15 EDT
channels:
  latest/stable:    –                              
  latest/candidate: –                              
  latest/beta:      1.0.0.74 2022-07-28 (39) 371MB -
  latest/edge:      1.0.0.74 2022-07-27 (39) 371MB -
installed:          1.0.0.74            (39) 371MB -

snap version

snap    2.56.3+git761.g293c48d
snapd   2.56.3+git761.g293c48d
series  16
ubuntu  22.04
kernel  5.15.0-41-generic

Additional context

Cyberpunk 2077 Steam Log File dmsg system log. This covers from computer bootup (at 13:06:37) to launching the game (I hit the play button at 13:07:00). It also has a few seconds after the game crashed.

[thatLeaflet]

I was able to launch and play Fallout 4 with Proton 7.0-3, but not Proton Experimental. However, Cyberpunk 2077 ran into the Dxvk error both on Proton 7.0-3 and Proton Experimental.

[alexispurslane]

I randomly get this same exact error with Fallout New Vegas, although weirdly it only started doing this recently, so it might be a mod, although for the life of me I can't figure out which

[kenvandine]

@thatLeaflet can you please try this again with steam from the edge channel?

[thatLeaflet]

@kenvandine Unfortunately can't, I currently don't have an Ubuntu install.

[giocal88]

@kenvandine Unfortunately can't, I currently don't have an Ubuntu install.

Are your Proton installs on main HDD or on an external device? (i mean Proton itself, not the games)

[ashuntu]

If not already, this may work now with 2.64 snapd. You can try by refreshing snapd with snap refresh snapd --edge (and restarting). Make sure to go back to stable after testing with snap refresh snapd --stable.