Steam / muvm does not start

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1

hello

trying to launch steam or a windows application using “muvm – app” lead to the same error

FATAL sommelier.cc:2963 error.

Steam shows the first “launching steam…” window and then suddenly crashes.

Laptop is M2 air

The complete terminal output from steam command is the following :

$ steam
mice is not a joystick
mouse0 is not a joystick
Unable to access event0, this is most likely fine
Unable to access event1, this is most likely fine
Unable to access event2, this is most likely fine
Unable to access event3, this is most likely fine
The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce.
No IPv6 nameserver available for NDP/DHCPv6
Using default interface naming scheme ‘v255’.
Failed to open /usr/lib/udev/rules.d/60-nfs.rules, ignoring: Permission denied
steam.sh[295]: Running Steam on fedora 42 64-bit
steam.sh[295]: STEAM_RUNTIME is enabled automatically
setup.sh[345]: Steam runtime environment up-to-date!
steam.sh[295]: Steam client’s requirements are satisfied
CProcessEnvironmentManager is ready, 6 preallocated environment variables.
[2024-11-08 22:11:28] Startup - updater built Nov 5 2024 21:33:18
[2024-11-08 22:11:28] Startup - Steam Client launched with: ‘/home/eh/.local/share/Steam/ubuntu12_32/steam’ ‘-srt-logger-opened’ ‘-cef-force-occlusion’ ‘-cef-force-opaque-backgrounds’ ‘-gamepadui’
11/08 22:11:28 minidumps folder is set to /tmp/dumps
11/08 22:11:28 Init: Installing breakpad exception handler for appid(steam)/version(1730853027)/tid(404)
[2024-11-08 22:11:29] Loading cached metrics from disk (/home/eh/.local/share/Steam/package/steam_client_metrics.bin)
[2024-11-08 22:11:29] Failed to load cached hosts file (File ‘update_hosts_cached.vdf’ not found), using defaults
[2024-11-08 22:11:29] Using the following download hosts for Public, Realm steamglobal
[2024-11-08 22:11:29] 1. https://client-update.steamstatic.com, /, Realm ‘steamglobal’, weight was 1, source = ‘baked in’
[2024-11-08 22:11:29] Verifying installation…
[2024-11-08 22:11:29] Verification complete
UpdateUI: skip show logo
Steam logging initialized: directory: /home/eh/.local/share/Steam/logs
XRRGetOutputInfo Workaround: initialized with override: 0 real: 0xed350ec0
XRRGetCrtcInfo Workaround: initialized with override: 0 real: 0xed34f620
pcilib: Cannot open /proc/bus/pci
lspci: Cannot find any working access method.
Failed to open /usr/lib/udev/rules.d/60-nfs.rules, ignoring: Permission denied
pcilib: Cannot open /proc/bus/pci
lspci: Cannot find any working access method.
Steam Runtime Launch Service: starting steam-runtime-launcher-service
Steam Runtime Launch Service: steam-runtime-launcher-service is running pid 554
bus_name=com.steampowered.PressureVessel.LaunchAlongsideSteam
Steam is up - hiding the launcher
[2024-11-08 22:12:34] Shutdown
FATAL sommelier.cc:2963 sl_handle_x_connection_event: got error or hangup (mask 5) on X connection, exiting
Steam quit

2

There was a Steam update that has uncovered a FEX bug. It’s being looked at.

3

ok this is why the same problem occurs with muvm.

4

hello

Steam is now ok, it can be launched, but muvm still fail to start windows application, showing the same sommelier error code:

muvm – LTspice64.exe
No IPv6 nameserver available for NDP/DHCPv6
Using default interface naming scheme ‘v255’.
Failed to open /usr/lib/udev/rules.d/60-nfs.rules, ignoring: Permission denied
Failed to execute “LTspice64.exe” as child process: No such file or directory (os error 2)
FATAL sommelier.cc:2963 sl_handle_x_connection_event: got error or hangup (mask 5) on X connection, exiting

(yes, LTspice64.exe is in the WD)

is it still a FEX related bug ? Not sure to have found a discussion on this on FEX github page.