On 13 August 2010 19:32, Takashi Iwai <tiwai@xxxxxxx> wrote: > At Fri, 13 Aug 2010 17:37:33 +0100, > Lex F wrote: >> >> Hi >> >> Thanks for your reply. I tried to answer your questions below. >> >> On 13 August 2010 17:06, Takashi Iwai <tiwai@xxxxxxx> wrote: >> > We have had many problems with VMware, too :) >> > Which sound backend are you using? Direct ALSA / dmix or PA? >> >> I believe it's direct ALSA, I have choppy output even with >> aplay /usr/share/sounds/alsa/*.wav > > It doesn't mean always that you use direct ALSA. Try to pass -Dplughw > option to aplay. It tried that but it did not make any difference. As I already pointed out to Daniel, I do not have pulse audio installed or any other audio server for that matter. I run arch and know my installed packages quite well. > >> I am compiling a kernel with the following options enabled: >> CONFIG_SND_PCM_XRUN_DEBUG, CONFIG_SND_VERBOSE_PROCFS, >> CONFIG_SND_DEBUG >> >> Would any of these help to determine the cause and suggest a fix? > > Fix VirtualBox :) > > Or try to set xrun_debug and check kernel log as Jaroslav wrote. > I've tried setting xrun_debug to various values as per XRUN DEBUG page on Alsa Project Wiki yet all I see in my kernel.log is loads of hwptr_updates and sometimes period_update. I am afraid it does not mean anything to me. I certainly do not see any obvious errors. Can somebody please advise what I should be looking for? I can post the output here. Thanks! Lex _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel