On 14/04/10 08:08, Takashi Iwai wrote: > At Tue, 13 Apr 2010 23:54:26 +0200, > Éric Piel wrote: >> >> Hello, >> >> Since 2.6.34-rc*, I have a regression on alsa which prevents the sound >> to be played correctly. When playing, the music goes too fast, skipping >> some parts. Typically, it's very easy to reproduce by doing: >> time mplayer -endpos 30 sound-file-which-lasts-more-than-thirty-sec.mp3 >> >> If the wall clock is less than 30s, you have the bug. With my intel-hda >> (AD1981), it's reliably reproducible: it gives ~27s, instead of the >> normal ~31s. >> >> After bisection, it turns out that it is commit >> 7b3a177b0d4f92b3431b8dca777313a07533a710, aka "ALSA: pcm_lib: fix >> "something must be really wrong" condition" which caused this >> regression. Reverting it on top of 2.6.34-rc3+ fixes the problem. > > What happens if you pass position_fix=1 option to snd-hda-intel? Oh! Very good remark... I've just noticed that I had an option already on the module: bdl_pos_adj=0. It seems it's not needed anymore to get my card working fine. If I remove every option (leaving bdl_pos_adj to the default value 1), it works fine. If I put bdl_pos_adj=0 and position_fix=1, it works fine again. I don't fully grasp the meaning of bdl_pos_adj, so I don't know if it's a bug to not play correctly when forcing it to 0. Is it? I'll ask to another reporter who had the same problem if bdl_pos_adj is also set to 0... > Is it via PulseAudio or other backend? This happens both with pulseaudio, oss and alsa (in which case it plays the 30s clip in 12s). Eric _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
