Если стим отказывается запускаться, и при этом при запуске через консоль есть что то такого плана

Running Steam on ubuntu 13.04 64-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(1379035603_client)
Installing breakpad exception handler for appid(steam)/version(1379035603_client)
Installing breakpad exception handler for appid(steam)/version(1379035603_client)
unlinked 0 orphaned pipes
removing stale semaphore last operated on by process 3196 with name 0eBlobRegistryMutex_E2665873A8DC7BE53954CF5A8E353C4C
removing stale semaphore last operated on by process 3196 with name 0eBlobRegistrySignal_E2665873A8DC7BE53954CF5A8E353C4C
removing stale semaphore last operated on by process 3196 with name 0emSteamEngineInstance
removing stale semaphore last operated on by process 3196 with name 0eSteamEngineLock
Installing breakpad exception handler for appid(steam)/version(1379035603_client)
[0914/210204:WARNING:proxy_service.cc(958)] PAC support disabled because there is no system implementation

выполняем команду

rm -Rf ~/.steam/steam/appcache

затем запускаем стим.