Non proton-chachyos-Proton Version sticks to proton-chachyos Enironment Variables

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@Valkenhayn · 2026-05-13 · via CachyOS Forum - Latest posts

I have been using CachyOS for about a month now, and aside from a few initial startup issues—which I was able to resolve quickly with the help of Google and Gemini—everything has worked without any major problems.

However, for the past few days, I have been encountering a strange issue: whenever I use Proton Experimental or other Proton versions (other than proton-cachyos), the environment variables are not being passed through. These non-proton-cachyos variants seem to consistently use the set of variables that were passed during the last launch of the proton-cachyos version. Any changes made while using other Proton versions are simply ignored (e.g., switching a value from 0 to 1).

About a week ago, changes to the environment variables were still being applied in Proton Experimental.

I made some Logs (Steam Debug & Proton) but can’t pinpoint the problem. Game here is GW2 but the problem is present on all games (tested 4)

Environment Variables in Steam:

PROTON_LOG=1 PROTON_ENABLE_NVAPI=1 NVPRESENT_ENABLE_SMOOTH_MOTION=1 DXVK_NVAPI_VKREFLEX=1 DXVK_NVAPI_VKREFLEX_BOOST=1 PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1 ENABLE_HDR_WSI=1 %command% -provider Portal

steam-1284210_cachyos11.log

======================
Proton: 1777833244 cachyos-11.0-20260429-slr
SteamGameId: 1284210
Command: [‘/home/angrynuknuk/.local/share/Steam/steamapps/common/Guild Wars 2/Gw2-64.exe’, ‘-provider’, ‘Steam’, ‘-provider’, ‘Portal’]
Options: {‘wayland’, ‘hdr’, ‘nvml’, ‘forcelgadd’, ‘gamedrive’}
depot: 4.0.20260507.232683
pressure-vessel: 0.20260505.0
pressure-vessel-arm64: 0.20260505.0
scripts: 0.20260505.0
steamrt4: 4.0.20260507.232683 steamrt4 4.0.20260507.232683
Kernel: Linux 7.0.6-1-cachyos #1 SMP PREEMPT_DYNAMIC Mon, 11 May 2026 15:10:22 +0000 x86_64
Language: LC_ALL None, LC_MESSAGES None, LC_CTYPE None
PATH: /usr/share/steam/compatibilitytools.d/proton-cachyos-slr/files/bin/:/usr/bin:/bin
Effective WINEDEBUG: +timestamp,+pid,+tid,+seh,+unwind,+threadname,+debugstr,+loaddll,+mscoree

ntsync: up and running.

…

steam-1284210_ProtExp.log

======================
Proton: 1778604335 experimental-bleeding-edge-11.0-360170-20260512-pd2f45d-weaff7e-d5d7cc4-ve83dee
SteamGameId: 1284210
Command: [‘/home/angrynuknuk/.local/share/Steam/steamapps/common/Guild Wars 2/Gw2-64.exe’, ‘-provider’, ‘Steam’, ‘-provider’, ‘Portal’]
Options: {‘gamedrive’, ‘forcelgadd’}
depot: 4.0.20260507.232683
pressure-vessel: 0.20260505.0
pressure-vessel-arm64: 0.20260505.0
scripts: 0.20260505.0
steamrt4: 4.0.20260507.232683 steamrt4 4.0.20260507.232683
Kernel: Linux 7.0.6-1-cachyos #1 SMP PREEMPT_DYNAMIC Mon, 11 May 2026 15:10:22 +0000 x86_64
Language: LC_ALL None, LC_MESSAGES None, LC_CTYPE None
PATH: /home/angrynuknuk/.local/share/Steam/steamapps/common/Proton - Experimental/files/bin/:/usr/bin:/bin
Effective WINEDEBUG: +timestamp,+pid,+tid,+seh,+unwind,+threadname,+debugstr,+loaddll,+mscoree

ntsync: up and running.

…

(had to change https with httpsx due to new post max. 2 link restriction)

Steam_Debug_proton-cachyos11

DEBUG_STEAM_LINUX_RUNTIME=1 steam
steam.sh[61593]: Running Steam on cachyos rolling 64-bit
steam.sh[61593]: STEAM_RUNTIME is enabled automatically
setup.sh[61645]: Steam runtime environment up-to-date!
steam.sh[61593]: Log already open
steam.sh[61593]: Steam client’s requirements are satisfied
CProcessEnvironmentManager is ready, 6 preallocated environment variables.
[2026-05-12 19:50:24] Startup - updater built May 11 2026 23:58:45
[2026-05-12 19:50:24] Startup - Steam Client launched with: ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/steam’ ‘-srt-logger-opened’
[2026-05-12 19:50:24] Opted in to client beta ‘publicbeta’ via beta file
You are in the ‘publicbeta’ client beta.
05/12 19:50:24 minidumps folder is set to /tmp/dumps
05/12 19:50:24 Init: Installing breakpad exception handler for appid(steam)/version(1778548034)/tid(61702)
Looks like steam didn’t shutdown cleanly, scheduling immediate update check
CProcessEnvironmentManager is ready, 6 preallocated environment variables.
[2026-05-12 19:50:24] Process started with command-line: ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/steam’ ‘-child-update-ui’ ‘-child-update-ui-socket’ ‘8’ ‘-srt-logger-opened’
05/12 19:50:24 minidumps folder is set to /tmp/dumps
[2026-05-12 19:50:24] Using update UI: xwin
05/12 19:50:24 Init: Installing breakpad exception handler for appid(steam)/version(0)/tid(61703)
[2026-05-12 19:50:24] Create window
[2026-05-12 19:50:24] Loading cached metrics from disk (/home/angrynuknuk/.local/share/Steam/package/steam_client_metrics.bin)
[2026-05-12 19:50:24] Using the following download hosts for Public, Realm steamglobal
[2026-05-12 19:50:24] 1. httpsx://client-update.akamai.steamstatic.com, /, Realm ‘steamglobal’, weight was 400, source = ‘update_hosts_cached.vdf’
[2026-05-12 19:50:24] 2. httpsx://client-update.fastly.steamstatic.com, /, Realm ‘steamglobal’, weight was 900, source = ‘update_hosts_cached.vdf’
[2026-05-12 19:50:24] 3. httpsx://client-update.steamstatic.com, /, Realm ‘steamglobal’, weight was 1, source = ‘baked in’
[2026-05-12 19:50:24] Checking for update on startup
[2026-05-12 19:50:24] Suche nach verfügbaren Updates …
[2026-05-12 19:50:24] Downloading manifest: httpsx://client-update.akamai.steamstatic.com/steam_client_publicbeta_ubuntu12
[2026-05-12 19:50:24] Manifest download: send request
[2026-05-12 19:50:25] Set percent complete: 0
[2026-05-12 19:50:25] Set status message: Suche nach verfügbaren Updates …
[2026-05-12 19:50:25] Set percent complete: -1
[2026-05-12 19:50:25] Manifest download: waiting for download to finish
[2026-05-12 19:50:25] Manifest download: finished
[2026-05-12 19:50:25] Download skipped: /steam_client_publicbeta_ubuntu12 version 1778548034, installed version 1778548034, existing pending version 0
[2026-05-12 19:50:25] Nothing to do
[2026-05-12 19:50:25] Installation wird überprüft …
[2026-05-12 19:50:25] Verifying all executable checksums
[2026-05-12 19:50:25] Set percent complete: -1
[2026-05-12 19:50:25] Set status message: Installation wird überprüft …
[2026-05-12 19:50:26] Verification complete
UpdateUI: skip show logo
[2026-05-12 19:50:26] Destroy window
[2026-05-12 19:50:26] Shutdown

Steam logging initialized: directory: /home/angrynuknuk/.local/share/Steam/logs

XOpenIM() failed, LANG = de_DE.UTF-8
XOpenIM() failed, LANG = de_DE.UTF-8XRRGetOutputInfo Workaround: initialized with override: 0 real: 0xf5fdeec0
XRRGetCrtcInfo Workaround: initialized with override: 0 real: 0xf5fdd590
05/12 19:50:26 minidumps folder is set to /tmp/dumps
05/12 19:50:26 Init: Installing breakpad exception handler for appid(steamsysinfo)/version(1778548034)/tid(61725)
Running query: 1 - GpuTopology
Response: gpu_topology {
gpus {
id: 1
name: “NVIDIA GeForce RTX 4080”
vram_size_bytes: 17171480576
driver_id: k_EGpuDriverId_NvidiaProprietary
driver_version_major: 595
driver_version_minor: 71
driver_version_patch: 5
luid: 0
}
default_gpu_id: 1
}

Exit code: 0
Saving response to: /tmp/steamicMPIA - 50 bytes
steamwebhelper.sh[61729]: Starting steamwebhelper under bootstrap steamrt steam runtime via: /home/angrynuknuk/.local/share/Steam/steamrt64/pv-runtime/steam-runtime-steamrt/_v2-entry-point
steamwebhelper.sh[61729]: Starting steamwebhelper with steamrt steam runtime at /home/angrynuknuk/.local/share/Steam/steamrt64/pv-runtime/steam-runtime-steamrt/_v2-entry-point
exec ./steamwebhelper -nocrashdialog -lang=de_DE -cachedir=/home/angrynuknuk/.local/share/Steam/config/htmlcache -steampid=61702 -buildid=1778548034 -steamid=0 -logdir=/home/angrynuknuk/.local/share/Steam/logs -uimode=7 -startcount=0 -steamuniverse=Public -realm=Global -clientui=/home/angrynuknuk/.local/share/Steam/clientui -steampath=/home/angrynuknuk/.local/share/Steam/ubuntu12_32/steam -launcher=0 -use_xcomposite_workaround --valve-initial-threadpool-size=4 --valve-enable-site-isolation --enable-smooth-scrolling --disable-gpu-compositing --disable-gpu --password-store=basic --log-file=/home/angrynuknuk/.local/share/Steam/logs/cef_log.txt --disable-quick-menu --disable-component-update --gaia-url=httpx://disabled.invalid --disable-features=WinRetrieveSuggestionsOnlyOnDemand,SpareRendererForSitePerProcess,DcheckIsFatal,BlockPromptsIfIgnoredOften,ValveFFmpegAllowLowDelayHEVC
Steam Runtime Launch Service: starting steam-runtime-launcher-service
Steam Runtime Launch Service: steam-runtime-launcher-service is running pid 61937
bus_name=com.steampowered.PressureVessel.LaunchAlongsideSteam
/usr/share/themes/Breeze-Dark/gtk-2.0/widgets/entry:70: error: unexpected identifier ‘direction’, expected character ‘}’
/usr/share/themes/Breeze-Dark/gtk-2.0/widgets/styles:36: error: invalid string constant “combobox_entry”, expected valid string constant
Desktop state changed: desktop: { pos: 0, 0 size: 3840,2160 } primary: { pos: 0, 0 size: 3840,2160 }
Caching cursor image for , size 48x48, serial 3, cache size = 0
ProtonFixes[62182] WARN: Skipping fix execution. We are probably running a unit test.
Proton: Upgrading prefix from CachyOS-10.1000-200 to CachyOS-11.0-100 (/home/angrynuknuk/.local/share/Steam/steamapps/compatdata/0/)
Proton: Prefix has an invalid version?! You may want to back up user files and delete this prefix.
ProtonFixes[62182] WARN: Skipping fix execution. We are probably running a unit test.
ntsync: up and running.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache”.
reaping pid: 61703 – steam
ProtonFixes[62446] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[62446] WARN: Skipping fix execution. We are probably running a unit test.
ntsync: up and running.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[62660] WARN: Skipping fix execution. We are probably running a unit test.
Proton: Upgrading prefix from CachyOS-11.0-100 to CachyOS-10.1000-200 (/home/angrynuknuk/.local/share/Steam/steamapps/compatdata/0/)
Proton: Prefix has an invalid version?! You may want to back up user files and delete this prefix.
ProtonFixes[62660] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[62916] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[62916] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[63125] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[63125] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[63376] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[63376] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[63589] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[63589] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[63826] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[63826] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache”.
pressure-vessel-wrap[63961]: W: Not sharing path STEAM_COMPAT_TOOL_PATHS=“…:/usr/share/steam/compatibilitytools.d/proton-cachyos-slr:…” with container because “/usr” is reserved by the container framework
ntsync: up and running.
chdir “/home/angrynuknuk/.local/share/Steam/steamapps/common/Guild Wars 2”
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Game Recording - would start recording game 1284210, but recording for this game is disabled
Adding process 64143 for gameID 1284210
Adding process 64144 for gameID 1284210
Adding process 64145 for gameID 1284210
pressure-vessel-wrap[64144]: W: Not sharing path STEAM_COMPAT_TOOL_PATHS=“…:/usr/share/steam/compatibilitytools.d/proton-cachyos-slr:…” with container because “/usr” is reserved by the container framework
ProtonFixes[64238] INFO: Running protonfixes on “cachyos-11.0-20260429-slr”, build at 2026-05-03 18:34:04+00:00.
ProtonFixes[64238] INFO: Running checks
ProtonFixes[64238] INFO: All checks successful
ProtonFixes[64238] INFO: Using early stage global defaults for “Guild Wars 2®” (1284210)
ProtonFixes[64238] INFO: Using early stage global protonfix for “Guild Wars 2®” (1284210)
Adding process 64238 for gameID 1284210
ProtonFixes[64238] INFO: Running protonfixes on “cachyos-11.0-20260429-slr”, build at 2026-05-03 18:34:04+00:00.
ProtonFixes[64238] INFO: Running checks
ProtonFixes[64238] INFO: All checks successful
ProtonFixes[64238] INFO: Using main stage global defaults for “Guild Wars 2®” (1284210)
ProtonFixes[64238] INFO: Using main stage global protonfix for “Guild Wars 2®” (1284210)
Adding process 64240 for gameID 1284210
Adding process 64241 for gameID 1284210
Adding process 64242 for gameID 1284210
Adding process 64245 for gameID 1284210
Adding process 64247 for gameID 1284210
Adding process 64251 for gameID 1284210
Adding process 64260 for gameID 1284210
Adding process 64265 for gameID 1284210
Adding process 64272 for gameID 1284210
Adding process 64331 for gameID 1284210
Adding process 64341 for gameID 1284210
Adding process 64349 for gameID 1284210
Adding process 64437 for gameID 1284210
Adding process 64453 for gameID 1284210
Adding process 64457 for gameID 1284210
Adding process 64460 for gameID 1284210
Adding process 64462 for gameID 1284210
05/12 19:51:35 minidumps folder is set to /tmp/dumps
05/12 19:51:35 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(20260511235856)/tid(64619)
05/12 19:51:35 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(1.0)/tid(64619)
Adding process 64644 for gameID 1284210
Adding process 64670 for gameID 1284210
[2026-05-12 19:52:27] Background update loop checking for update. . .
[2026-05-12 19:52:27] Suche nach verfügbaren Updates …
[2026-05-12 19:52:27] Downloading manifest: httpsx://client-update.akamai.steamstatic.com/steam_client_publicbeta_ubuntu12
[2026-05-12 19:52:27] Manifest download: send request
[2026-05-12 19:52:27] Manifest download: waiting for download to finish
[2026-05-12 19:52:27] Manifest download: finished
[2026-05-12 19:52:27] Download skipped by HTTP 304 Not Modified
[2026-05-12 19:52:27] Nothing to do
Game Recording - game stopped [gameid=1284210]
Removing process 64670 for gameID 1284210
Removing process 64644 for gameID 1284210
Removing process 64462 for gameID 1284210
Removing process 64460 for gameID 1284210
Removing process 64457 for gameID 1284210
Removing process 64453 for gameID 1284210
Removing process 64437 for gameID 1284210
Removing process 64349 for gameID 1284210
Removing process 64341 for gameID 1284210
Removing process 64331 for gameID 1284210
Removing process 64272 for gameID 1284210
Removing process 64265 for gameID 1284210
Removing process 64260 for gameID 1284210
Removing process 64251 for gameID 1284210
Removing process 64247 for gameID 1284210
Removing process 64245 for gameID 1284210
Removing process 64242 for gameID 1284210
Removing process 64241 for gameID 1284210
Removing process 64240 for gameID 1284210
Removing process 64238 for gameID 1284210
Removing process 64145 for gameID 1284210
Removing process 64144 for gameID 1284210
Removing process 64143 for gameID 1284210
reaping pid: 64619 – gameoverlayui
ntsync: up and running.
/builds/mono/wine-mono/wine-mono-11.1.0/mono/mono/eglib/gmisc-win32.c:138: assertion ‘filename != NULL’ failed

Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ntsync: up and running.
/builds/mono/wine-mono/wine-mono-11.1.0/mono/mono/eglib/gmisc-win32.c:138: assertion ‘filename != NULL’ failed

Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache”.

Steam_Debug_ProtExp

steam.sh[57526]: Running Steam on cachyos rolling 64-bit
steam.sh[57526]: STEAM_RUNTIME is enabled automatically
setup.sh[57578]: Steam runtime environment up-to-date!
steam.sh[57526]: Log already open
steam.sh[57526]: Steam client’s requirements are satisfied
CProcessEnvironmentManager is ready, 6 preallocated environment variables.
[2026-05-12 19:46:32] Startup - updater built May 11 2026 23:58:45
[2026-05-12 19:46:32] Startup - Steam Client launched with: ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/steam’ ‘-srt-logger-opened’
[2026-05-12 19:46:32] Opted in to client beta ‘publicbeta’ via beta file
You are in the ‘publicbeta’ client beta.
05/12 19:46:32 minidumps folder is set to /tmp/dumps
05/12 19:46:32 Init: Installing breakpad exception handler for appid(steam)/version(1778548034)/tid(57635)
CProcessEnvironmentManager is ready, 6 preallocated environment variables.
[2026-05-12 19:46:32] Process started with command-line: ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/steam’ ‘-child-update-ui’ ‘-child-update-ui-socket’ ‘8’ ‘-srt-logger-opened’
05/12 19:46:32 minidumps folder is set to /tmp/dumps
[2026-05-12 19:46:32] Using update UI: xwin
05/12 19:46:32 Init: Installing breakpad exception handler for appid(steam)/version(0)/tid(57636)
[2026-05-12 19:46:32] Create window
[2026-05-12 19:46:32] Loading cached metrics from disk (/home/angrynuknuk/.local/share/Steam/package/steam_client_metrics.bin)
[2026-05-12 19:46:32] Using the following download hosts for Public, Realm steamglobal
[2026-05-12 19:46:32] 1. httpsx://client-update.akamai.steamstatic.com, /, Realm ‘steamglobal’, weight was 400, source = ‘update_hosts_cached.vdf’
[2026-05-12 19:46:32] 2. httpsx://client-update.fastly.steamstatic.com, /, Realm ‘steamglobal’, weight was 900, source = ‘update_hosts_cached.vdf’
[2026-05-12 19:46:32] 3. httpsx://client-update.steamstatic.com, /, Realm ‘steamglobal’, weight was 1, source = ‘baked in’
[2026-05-12 19:46:32] Installation wird überprüft …
[2026-05-12 19:46:32] Verifying file sizes only
[2026-05-12 19:46:32] Verification complete
UpdateUI: skip show logo

Steam logging initialized: directory: /home/angrynuknuk/.local/share/Steam/logs

[2026-05-12 19:46:32] ProcessNextMessage: socket disconnected
[2026-05-12 19:46:32] No more messages are expected - exiting
XOpenIM() failed, LANG = de_DE.UTF-8
XOpenIM() failed, LANG = de_DE.UTF-8XRRGetOutputInfo Workaround: initialized with override: 0 real: 0xf6228ec0
XRRGetCrtcInfo Workaround: initialized with override: 0 real: 0xf6227590
05/12 19:46:32 minidumps folder is set to /tmp/dumps
05/12 19:46:32 Init: Installing breakpad exception handler for appid(steamsysinfo)/version(1778548034)/tid(57680)
Running query: 1 - GpuTopology
Response: gpu_topology {
gpus {
id: 1
name: “NVIDIA GeForce RTX 4080”
vram_size_bytes: 17171480576
driver_id: k_EGpuDriverId_NvidiaProprietary
driver_version_major: 595
driver_version_minor: 71
driver_version_patch: 5
luid: 0
}
default_gpu_id: 1
}

Exit code: 0
Saving response to: /tmp/steambKhkAn - 50 bytes
steamwebhelper.sh[57684]: Starting steamwebhelper under bootstrap steamrt steam runtime via: /home/angrynuknuk/.local/share/Steam/steamrt64/pv-runtime/steam-runtime-steamrt/_v2-entry-point
steamwebhelper.sh[57684]: Starting steamwebhelper with steamrt steam runtime at /home/angrynuknuk/.local/share/Steam/steamrt64/pv-runtime/steam-runtime-steamrt/_v2-entry-point
Steam Runtime Launch Service: starting steam-runtime-launcher-service
Steam Runtime Launch Service: steam-runtime-launcher-service is running pid 57831
bus_name=com.steampowered.PressureVessel.LaunchAlongsideSteam
exec ./steamwebhelper -nocrashdialog -lang=de_DE -cachedir=/home/angrynuknuk/.local/share/Steam/config/htmlcache -steampid=57635 -buildid=1778548034 -steamid=0 -logdir=/home/angrynuknuk/.local/share/Steam/logs -uimode=7 -startcount=0 -steamuniverse=Public -realm=Global -clientui=/home/angrynuknuk/.local/share/Steam/clientui -steampath=/home/angrynuknuk/.local/share/Steam/ubuntu12_32/steam -launcher=0 -use_xcomposite_workaround --valve-initial-threadpool-size=4 --valve-enable-site-isolation --enable-smooth-scrolling --disable-gpu-compositing --disable-gpu --password-store=basic --log-file=/home/angrynuknuk/.local/share/Steam/logs/cef_log.txt --disable-quick-menu --disable-component-update --gaia-url=httpx://disabled.invalid --disable-features=WinRetrieveSuggestionsOnlyOnDemand,SpareRendererForSitePerProcess,DcheckIsFatal,BlockPromptsIfIgnoredOften,ValveFFmpegAllowLowDelayHEVC
/usr/share/themes/Breeze-Dark/gtk-2.0/widgets/entry:70: error: unexpected identifier ‘direction’, expected character ‘}’
/usr/share/themes/Breeze-Dark/gtk-2.0/widgets/styles:36: error: invalid string constant “combobox_entry”, expected valid string constant
Desktop state changed: desktop: { pos: 0, 0 size: 3840,2160 } primary: { pos: 0, 0 size: 3840,2160 }
Caching cursor image for , size 48x48, serial 3, cache size = 0
ProtonFixes[58168] WARN: Skipping fix execution. We are probably running a unit test.
Proton: Upgrading prefix from CachyOS-10.1000-200 to CachyOS-11.0-100 (/home/angrynuknuk/.local/share/Steam/steamapps/compatdata/0/)
Proton: Prefix has an invalid version?! You may want to back up user files and delete this prefix.
ProtonFixes[58168] WARN: Skipping fix execution. We are probably running a unit test.
ntsync: up and running.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache”.
reaping pid: 57636 – steam
ProtonFixes[58456] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[58456] WARN: Skipping fix execution. We are probably running a unit test.
ntsync: up and running.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[58674] WARN: Skipping fix execution. We are probably running a unit test.
Proton: Upgrading prefix from CachyOS-11.0-100 to CachyOS-10.1000-200 (/home/angrynuknuk/.local/share/Steam/steamapps/compatdata/0/)
Proton: Prefix has an invalid version?! You may want to back up user files and delete this prefix.
ProtonFixes[58674] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[58914] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[58914] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[59126] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[59126] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ntsync: up and running.
/builds/mono/wine-mono/wine-mono-11.1.0/mono/mono/eglib/gmisc-win32.c:138: assertion ‘filename != NULL’ failed

ProtonFixes[59557] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[59557] WARN: Skipping fix execution. We are probably running a unit test.
chdir “/home/angrynuknuk/.local/share/Steam/steamapps/common/Guild Wars 2”
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object ‘/home/angrynuknuk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Game Recording - would start recording game 1284210, but recording for this game is disabled
Adding process 59594 for gameID 1284210
Adding process 59595 for gameID 1284210
Adding process 59596 for gameID 1284210
Adding process 59730 for gameID 1284210
Adding process 59736 for gameID 1284210
Adding process 59738 for gameID 1284210
Adding process 59739 for gameID 1284210
Adding process 59746 for gameID 1284210
Adding process 59751 for gameID 1284210
Adding process 59756 for gameID 1284210
Adding process 59766 for gameID 1284210
Adding process 59782 for gameID 1284210
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache”.
Adding process 59795 for gameID 1284210
Adding process 59832 for gameID 1284210
Adding process 59841 for gameID 1284210
Adding process 59843 for gameID 1284210
Adding process 59849 for gameID 1284210
ProtonFixes[59977] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[59977] WARN: Skipping fix execution. We are probably running a unit test.
Adding process 60103 for gameID 1284210
Adding process 60125 for gameID 1284210
Adding process 60128 for gameID 1284210
Adding process 60131 for gameID 1284210
Adding process 60133 for gameID 1284210
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache”.
ProtonFixes[60399] WARN: Skipping fix execution. We are probably running a unit test.
ProtonFixes[60399] WARN: Skipping fix execution. We are probably running a unit test.
Fossilize INFO: Overriding serialization path: “/home/angrynuknuk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache”.
05/12 19:47:21 minidumps folder is set to /tmp/dumps
05/12 19:47:21 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(20260511235856)/tid(60580)
05/12 19:47:21 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(1.0)/tid(60580)
Adding process 60599 for gameID 1284210
Adding process 60631 for gameID 1284210
Game Recording - game stopped [gameid=1284210]
Removing process 60631 for gameID 1284210
Removing process 60599 for gameID 1284210
Removing process 60133 for gameID 1284210
Removing process 60131 for gameID 1284210
Removing process 60128 for gameID 1284210
Removing process 60125 for gameID 1284210
Removing process 60103 for gameID 1284210
Removing process 59849 for gameID 1284210
Removing process 59843 for gameID 1284210
Removing process 59841 for gameID 1284210
Removing process 59832 for gameID 1284210
Removing process 59795 for gameID 1284210
Removing process 59782 for gameID 1284210
Removing process 59766 for gameID 1284210
Removing process 59756 for gameID 1284210
Removing process 59751 for gameID 1284210
Removing process 59746 for gameID 1284210
Removing process 59739 for gameID 1284210
Removing process 59738 for gameID 1284210
Removing process 59736 for gameID 1284210
Removing process 59730 for gameID 1284210
Removing process 59596 for gameID 1284210
Removing process 59595 for gameID 1284210
Removing process 59594 for gameID 1284210
reaping pid: 60580 – gameoverlayui
[2026-05-12 19:48:32] Background update loop checking for update. . .
[2026-05-12 19:48:32] Suche nach verfügbaren Updates …
[2026-05-12 19:48:32] Downloading manifest: httpsx://client-update.akamai.steamstatic.com/steam_client_publicbeta_ubuntu12
[2026-05-12 19:48:32] Manifest download: send request
[2026-05-12 19:48:33] Manifest download: waiting for download to finish
[2026-05-12 19:48:33] Manifest download: finished
[2026-05-12 19:48:33] Download skipped: /steam_client_publicbeta_ubuntu12 version 1778548034, installed version 1778548034, existing pending version 0
[2026-05-12 19:48:33] Nothing to do

The AI’s suggestions to reset the app cache or compatdata have not solved the problem. And by now, the AI is just going in circles. For some games I need/want to use the non proton-cachyos version due to e.g. launcher problems but I don’t want to launch the game with proton-cachyos after every Enironment Variable change.

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