On Wed, 20 Jan 2010, Raymond Yau wrote: > 2010/1/13 Jaroslav Kysela <perex@xxxxxxxx> > >> On Wed, 13 Jan 2010, Raymond Yau wrote: >> >> 2010/1/11 Jaroslav Kysela <perex@xxxxxxxx> >>> >>> On Mon, 11 Jan 2010, Raymond Yau wrote: >>>> >>>> 2010/1/7 Jaroslav Kysela <perex@xxxxxxxx> >>>> >>>>> >>>>> On Wed, 6 Jan 2010, pl bossart wrote: >>>>> >>>>>> >>>>>> >>>>>> >>>>>> The improved and more clean fix in now in my tree: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> http://git.alsa-project.org/?p=alsa-kernel.git;a=commitdiff;h=1250932e48d3b698415b1f04775433cf1da688d6 >>>>>> >>>>>> Note that you should apply these 4 patches (in reverse order): >>>>>> >>>>>> 4: ALSA: pcm_lib - optimize wake_up() calls for PCM I/O >>>>>> 3: ALSA: pcm_lib - cleanup & merge hw_ptr update functions >>>>>> 2: ALSA: pcm_lib - add possibility to log last 10 DMA ring buffer >>>>>> positions >>>>>> 1: ALSA: pcm_lib.c - convert second xrun_debug() parameter to use >>>>>> defines >>>>>> >>>>>> Patch #3 should definitely fix problems with large avail or delay >>>>>> values >>>>>> reported in PA. I finally figured the culprit (and decide to cleanup >>>>>> all >>>>>> relevant code rather do just another workaround). In other words, new >>>>>> hw_ptr pointer should never be less than previous one now. >>>>>> >>>>>> Jaroslav >>>>>> >>>>>> - >>>>>> >>>>>> >>>>>> using alsa-driver-1.0.22.1.1.g231e3.14.g812cb and Fedora 12 inside >>>>> Virtual >>>>> Box >>>>> >>>>> aplay -D plughw:0,0 /usr/share/sounds/alsa/*.wav >>>>> >>>>> "Front Left" sound as "Front Front Left" when playing "Front_left.wav" >>>>> >>>>> only when echo 4 > /proc/asound/card0/pcm0p/xrun_debug >>>>> >>>>> >>>> Thanks for testing. >>>> >>>> It means that with other values is no sound generated? >>>> >>>> Could you use value 29 for xrun_debug and report all sound related >>>> messages >>>> from dmesg output after playback of "Front_left.wav"? >>>> >>>> Jaroslav >>>> >>>> ----- >>>> >>> >>> >>> >>> do you mean 27 instead of 29 since the echo only occur when the value >>> contain XRUN_DEBUG_JIFFIESCHECK bit ? >>> >>> aplay -Dplughw:0,0 and mplayer -ao alsa:device=hw=0,0 work normal >>> >>> except when the value of xrun_debug contain XRUN_DEBUG_JIFFIESCHECK bit >>> ( >>> same result for the three virtual box audio backend oss, pulseaudio and >>> alsa ) >>> >> >> Ok, I understand now. It would be better to use value 101 then - to see >> last 10 ring buffer positions when jiffies correction occurs. Also, get >> latest snapshot - there is a fix for jiffies check. Thanks. >> >> Jaroslav >> >> > alsa-driver-1.0.22.1.1.g231e3.61.g42efb > copying file alsa/kernel/core/sound.c > patchfile file sound.c > Hunk# 12 FAILED at 518 > 1 out of 12 hunks FAILED -- saving rejects to file sound.c.rej > > > seem related to > http://git.alsa-project.org/?p=alsa-kernel.git;a=commit;h=8a822c23333694e7d1e6ccb15267e251af6d8f4f The problem should be fixed now. Thanks for the notice. Jaroslav ----- Jaroslav Kysela <perex@xxxxxxxx> Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
