At Wed, 26 Nov 2014 16:54:53 +0800, Raymond Yau wrote: > > For those creative sound cards (e.g. emu10k1, ca0106) which use multi > plugin for surround playback > > It seem that set start_threshold to -1 has no effect on some devices (e.g. > multi plugin) , the device seem automatically started and pulseaudio does > not check pcm state when calling snd_pcm_start > > (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_START failed (-77) > > Does it mean bug of multi plugin or start_threshold.have no effect on some > devices/plugin ? I'm not sure whether the value -1 is valid for start_threshold at all. Usually it's set between 1 and boundary. Takashi
