Extended error message.

docs/frequently-asked-questions.md

@@ -11,7 +11,7 @@
 
 ## Starting Engine
 
-**Error when starting output lineout: Failure("Error while setting open_pcm: No such file or directory**
+**[clock.wallclock_alsa:2] Error when starting output lineout: Failure("Error while setting open_pcm: No such file or directory")!**
 
 This might indicate some issue with your ALSA device. Check if `aplay -l` and `aplay -L` returns some valid device(s).