make error message very slightly more indicative of what might be happening when...

diff --git a/libs/ardour/audio_backend.cc b/libs/ardour/audio_backend.cc
index f178bcb443e618ccfecde48ab8debc8a575466be..30df66c6ffe56d9fccbe8c19b4192d41bef28b1a 100644 (file)
--- a/libs/ardour/audio_backend.cc
+++ b/libs/ardour/audio_backend.cc
@@ -36,7 +36,7 @@ AudioBackend::get_error_string (ErrorCode error_code)
        case BackendReinitializationError:
                return _("Failed to reinitialize audio backend");
        case AudioDeviceOpenError:
-               return _("Failed to open audio device");
+               return _("Failed to open audio device\n(Typically caused by hardware parameter settings)");
        case AudioDeviceCloseError:
                return _("Failed to close audio device");
        case AudioDeviceInvalidError: