steam error

steam
Installing breakpad exception handler for appid(steam)/version(1359141904_client)
libGL error: failed to load driver: nouveau
libGL error: Try again with LIBGL_DEBUG=verbose for more details.
Looks like steam didn't shutdown cleanly, scheduling immediate update check
Installing breakpad exception handler for appid(steam)/version(1359141904_client)
Installing breakpad exception handler for appid(steam)/version(1359141904_client)
unlinked 0 orphaned pipes
removing stale semaphore last operated on by process 7454 with name 0eBlobRegistryMutex_41ADEAA4EB128B29262C37E98EDEC08E
removing stale semaphore last operated on by process 7454 with name 0eBlobRegistrySignal_41ADEAA4EB128B29262C37E98EDEC08E
removing stale semaphore last operated on by process 7454 with name 0emSteamEngineInstance
removing stale semaphore last operated on by process 7454 with name 0eSteamEngineLock
Installing breakpad exception handler for appid(steam)/version(1359141904_client)
[0126/162750:ERROR:object_proxy.cc(239)] Failed to call method: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.NetworkManager was not provided by any .service files
[0126/162750:WARNING:proxy_service.cc(646)] PAC support disabled because there is no system implementation
libGL error: failed to load driver: nouveau
libGL error: Try again with LIBGL_DEBUG=verbose for more details.
Installing breakpad exception handler for appid(steam)/version(1359141904_client)
Installing breakpad exception handler for appid(steam)/version(1359141904_client)
Installing breakpad exception handler for appid(steam)/version(1359141904_client)
PulseAudio connect failed (used only for Mic Volume Control) with error: Access denied
GLError: 1280
GLError: 1280
GLError: 1280
GLError: 1280
GLError: 1280
GLError: 1280
GLError: 1280
GLError: 1280
GLError: 1280
GL: [API][ERROR][HIGH][0]: GL_INVALID_ENUM in glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)
/home/megabaks/.local/share/Steam/steam.sh: line 343:  8248 Trace/breakpoint trap   (core dumped) $STEAM_DEBUGGER "$STEAMROOT/$PLATFORM/$STEAMEXE" "$@"