Le 08/11/2011 07:32, Takashi Iwai a écrit :
At Mon, 07 Nov 2011 23:45:40 +0100, Colomban Wendling wrote:
Hi,
Back to 3.0, the sound on my soundcard [1] started to be choppy, I reported it [2] and it got fixed (thanks to Takashi Iwai!).
However, the story repeated with 3.1 (and probably 3.0.8 or before [3]): I've got similar choppy sound again.
I bisected the few commits that happened on sound/pci/hda/patch_realtek.c, and finally found the villain:
"8974bd51 ALSA: hda/realtek - Fix auto-mute with HP+LO configuration"
Reverting it from v3.1 fixes the problem.
Does it? Very weird. This patch has nothing to do with the HD-audio controller side but purely a codec change.
master (94956ee) also suffers of the problem, but I couldn't test without that commit because reverting it fails, too much changes happened.
Did you try to pass position_fix=1 (or 2) option? Also, passing enable_msi=0 (or 1) may change anything?
In anyway, please give alsa-info.sh output again with the fresh kernel. Run it with --no-upload option and attach the output.
My answer was moderated because it was huge (including the alsa-info outputs), but I guess you got it? Any news on the subject?
Regards, Colomban