When running steam with native runtime it crashes when it gets to the point of spawning the "connecting" window. This is the only log output:
myusername@myhostname:~/.local/share/Steam/ubuntu12_32$ STEAM_RUNTIME=0 steam Running Steam on debian 7.0 64-bit STEAM_RUNTIME is disabled by the user [2015-01-31 23:56:38] Startup - updater built Jan 23 2015 13:46:31 [2015-01-31 23:56:38] Verifying installation... [2015-01-31 23:56:38] Verification complete Requested Force create but SharedObjectMutex already created Forced create but already created for SharedObjectEvent Forced create but already created for SharedObjectEvent myusername@myhostname:~/.local/share/Steam/ubuntu12_32$
Those last errors happen when running with steam runtime as well but it works with steam runtime.
A very similar mutex error came up recently with some other applications. This was due to gtk changes (bl**dy GNOME ), and we had to wait for patches to fix it.
Have you just done an upgrade?
If this is the case here, it may give you a pointer for searching for a solution.
Last edited by damo (2015-02-01 10:59:44)