At Mon, 10 Sep 2012 22:48:18 +0200, Catalin Iacob wrote:
On Mon, Sep 10, 2012 at 10:34 AM, Takashi Iwai tiwai@suse.de wrote:
What sound backend are you using? PulseAudio?
PulseAudio yes.
Also, setting bdl_pos_adj=0 option makes any difference?
No, the artifacts are still present.
The artifacts appear only with some applications, for example VLC and Skype have them but KDE's startup sound and music played in Amarok don't.
Do VLC and Skype also use PulseAudio, right? Are these accessing PA natively, or through alsa-lib pulse plugin?
The artifacts also go away after around 10 - 30 seconds of playback and happen again for some tens of seconds after restarting the application.
The alsa-info output is available at [1] for the working case and [2] for the broken case.
[1] http://www.alsa-project.org/db/?f=005f377cccf46c8093c4a640ace396313ffd8102 [2] http://www.alsa-project.org/db/?f=b274a421ab04dab698b5d4d585dc7dbef06f7764
Does this help? Thanks,
It's hard to judge from alsa-info.sh in such cases, unfortunately. The codec registers don't show any timing issues.
In anyway, I applied your patch now since it's specific to a certain model, thus fairly safe to apply (and easy to revert).
thanks,
Takashi