После «аварийного» выключения Steam перестал запускаться. В терминале вылетает следующая ошибка:
steam Running Steam on ubuntu 13.04 64-bit STEAM_RUNTIME is enabled automatically Installing breakpad exception handler for appid(steam)/version(1378500910_client) Installing breakpad exception handler for appid(steam)/version(1378500910_client) Installing breakpad exception handler for appid(steam)/version(1378500910_client) unlinked 0 orphaned pipes removing stale semaphore last operated on by process 2101 with name 0eBlobRegistryMutex_36D5DE36BD60F4B8CE2864A9F1CA7846 removing stale semaphore last operated on by process 2101 with name 0eBlobRegistrySignal_36D5DE36BD60F4B8CE2864A9F1CA7846 removing stale semaphore last operated on by process 2101 with name 0emSteamEngineInstance removing stale semaphore last operated on by process 2101 with name 0eSteamEngineLock Installing breakpad exception handler for appid(steam)/version(1378500910_client) [0913/224729:WARNING:proxy_service.cc(958)] PAC support disabled because there is no system implementation
Но после нескольких дней поиска в интернете решение было найдено. Для исправления откройте терминал и выполните следующую команду:
rm -Rf ~/.steam/steam/appcache
Попробуйте запустить Steam. Должно заработать.