On 13 August 2010 19:32, Takashi Iwai tiwai@suse.de 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@suse.de 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