Hello @MaciejReszotnik, if you completely close Steam, run steam from a terminal, then reproduce the issue, are there any hints in the terminal spew?
You've described an issue in the Steam client, not Proton itself, so I've transferred this issue report to the steam-for-linux issue tracker.
@kisak-valve
Thanks for prompt reply:
Here's the dumpt from the terminal
steam.sh[4586]: Running Steam on pop 22.04 64-bit
steam.sh[4586]: STEAM_RUNTIME is enabled automatically
setup.sh[4656]: Steam runtime environment up-to-date!
steam.sh[4586]: Steam client's requirements are satisfied
[2022-10-20 20:16:07] Startup - updater built Oct 19 2022 00:56:08
[2022-10-20 20:16:07] Startup - Steam Client launched with: '/home/user/.steam/debian-installation/ubuntu12_32/steam' '-nominidumps' '-nobreakpad'
Installing breakpad exception handler for appid(steam)/version(1666144119)
Looks like steam didn't shutdown cleanly, scheduling immediate update check
[2022-10-20 20:16:08] Loading cached metrics from disk (/home/user/.steam/debian-installation/package/steam_client_metrics.bin)
[2022-10-20 20:16:08] Using the following download hosts for Public, Realm steamglobal
[2022-10-20 20:16:08] 1. https://client-update.akamai.steamstatic.com, /, Realm 'steamglobal', weight was 1000, source = 'update_hosts_cached.vdf'
[2022-10-20 20:16:08] 2. https://cdn.cloudflare.steamstatic.com, /client/, Realm 'steamglobal', weight was 1, source = 'update_hosts_cached.vdf'
[2022-10-20 20:16:08] 3. http://media.steampowered.com, /client/, Realm 'steamglobal', weight was 1, source = 'baked in'
Installing breakpad exception handler for appid(steam)/version(1666144119)
[2022-10-20 20:16:08] Checking for update on startup
[2022-10-20 20:16:08] Checking for available updates...
[2022-10-20 20:16:08] Downloading manifest: https://client-update.akamai.steamstatic.com/steam_client_ubuntu12
[2022-10-20 20:16:08] Manifest download: send request
Installing breakpad exception handler for appid(steam)/version(1666144119)
[2022-10-20 20:16:08] Manifest download: waiting for download to finish
[2022-10-20 20:16:08] Manifest download: finished
[2022-10-20 20:16:08] Download skipped: /steam_client_ubuntu12 version 1666144119, installed version 1666144119, existing pending version 0
[2022-10-20 20:16:08] Nothing to do
[2022-10-20 20:16:08] Verifying installation...
[2022-10-20 20:16:08] Performing checksum verification of executable files
[2022-10-20 20:16:10] Verification complete
Loaded SDL version 2.25.0-7511446
Gtk-Message: 20:16:10.299: Failed to load module "gail"
Gtk-Message: 20:16:10.300: Failed to load module "atk-bridge"
Gtk-Message: 20:16:10.300: Failed to load module "appmenu-gtk-module"(steam:4743): Gtk-WARNING **: 20:16:10.311: Unable to locate theme engine in module_path: "adwaita",
/usr/share/themes/Pop-dark/gtk-2.0/main.rc:775: error: unexpected identifier 'direction', expected character '}'(steam:4743): Gtk-WARNING **: 20:16:10.314: Unable to locate theme engine in module_path: "adwaita",
/usr/share/themes/Pop-dark/gtk-2.0/hacks.rc:28: error: invalid string constant "normal_entry", expected valid string constant
ComputeStartupMode: found registry default startup mode: 0steamwebhelper.sh[4763]: Runtime for steamwebhelper: defaulting to /home/user/.steam/debian-installation/ubuntu12_64/steam-runtime-heavy
Installing breakpad exception handler for appid(steam)/version(1666144119)
steamwebhelper.sh[4763]: glibc >= 2.34, partially disabling sandbox until CEF supports clone3()
Could not connect to X session manager: None of the authentication protocols specified are supported
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
CAppInfoCacheReadFromDiskThread took 330 milliseconds to initialize
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported(steam:4743): Gtk-WARNING **: 20:16:11.659: gtk_disable_setlocale() must be called before gtk_init()
(steam:4743): GLib-CRITICAL **: 20:16:11.659: Failed to set scheduler settings: Operation not permitted
Installing breakpad exception handler for appid(steam)/version(1666144119)
local (potentially out of sync) copy of roaming config loaded - 769 bytes.
roaming config store loaded successfully - 769 bytes.
migrating temporary roaming config store
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
BRefreshApplicationsInLibrary 1: 21ms
Installing breakpad exception handler for appid(steam)/version(1666144119)
Installing breakpad exception handler for appid(steam)/version(1666144119)
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Installing breakpad exception handler for appid(steam)/version(1666144119)
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Failed to init SteamVR because it isn't installed
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
ExecCommandLine: "'/home/user/.steam/debian-installation/ubuntu12_32/steam' '-nominidumps' '-nobreakpad'"
System startup time: 6.59 seconds
BuildCompleteAppOverviewChange: 636(steam:4743): Gtk-WARNING **: 20:16:17.726: gtk_disable_setlocale() must be called before gtk_init()
(steam:4743): Gtk-WARNING **: 20:16:17.732: gtk_disable_setlocale() must be called before gtk_init()
RegisterForAppOverview 1: 50ms
RegisterForAppOverview 2: 51ms
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
Could not connect to X session manager: None of the authentication protocols specified are supported
/home/user/.steam/debian-installation/steam.sh: line 796: 4743 Segmentation fault "$STEAMROOT/$STEAMEXEPATH" "$@
`
Thanks for checking. Unfortunately, there's no real hint to ponder there and the -nominidumps -nobreakpad distro-modification of the Steam package makes this difficult to ponder further.
proton 6.3-8x1 2022-10
I was directed to this repo by official Steam client support.
I am using Linux Pop!_OS 22.04 LTS.
When I try to change Proton version the Steam client crashes.
I change Proton version via Steam \ Settings \ Steam Play menu
I checked options "Enable Steam Play for supported titles" and "Enable Steam Play for all other titles". The Proton version selected by default is Proton 6.3-8. When I select the dropdown and try to pick any other version and click Ok button at the bottom of the window the client crashes.
EDIT: To clarify - when I rerun Steam client the new version of Proton is not selected - it defaults back to Proton 6.3-8.
I tried reinstalling Steam client - the issue still persists.
Please see attached files with the state seconds before crash and with my system info, respectively