2010/2/10 Kai Vehmanen <kvehmanen@xxxxxx> > Hi, > > > On Tue, 9 Feb 2010, Raymond Yau wrote: > > > why do PA insist to use one period per buffer when only those ISA drivers >> and intel8x0 have periods_min =1 , the most common HDA driver and most >> sound >> cards have periods_min =2 ? >> > > That is discussed at length here: > http://0pointer.de/blog/projects/pulse-glitch-free.html > most of the motherboard which have ISA bus for the ISA sound card did not have high resolution timer ( PA glitch free mode require high resolution timer ) The rest of those sound cards which have period_mins = 1 are regarded as broken by PA developer (e.g. intel8x0 ,emu10k1 , ens1371 , ... ) and aplay did not work with one period per buffer too. what is the hardware requirement for the driver to support one period per buffer ? if none of the those driver can be fixed why don't we change the period_min of all those broken drivers from 1 to 2 ? _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
