At Fri, 26 Oct 2007 17:19:31 +0800,zhejiang wrote:> > On Thu, 2007-10-25 at 10:05 +0200, Takashi Iwai wrote:> > At Thu, 25 Oct 2007 15:05:40 +0800,> > zhejiang wrote:> > > > > > Hi,> > > > > > I have a ICH8M + AD1986A machine.> > > > > > In 6 channel modes, if adjust the volumes when playing 2-channel or> > > 4-channel music, codec will be muted and all widget's Amp-Out vals will> > > be reset. If you play 2-channel files in 6 channel modes,there is noise> > > in the jacks.> > > > > > By doing experiments, I found that the 6-channel bug was caused by> > > sharing channels.> > > > > > If play 2-channel audio file,the rest channels will share channels with> > > the first 2-channel. > > > > > > The HDA spec doesnʼt define the exact behavior under such circumstances.> > > > > > Majority of the codec chips support sharing channel, but seem that> > > AD1986A doesnʼt support.> > > > > > I wrote a patch and tested it in my hardware,now it works well.> > > > Thanks! It's been a bug that I hardly understood what was wrong.> > > > IMO, it's better to have a flag in hda_multi_out rather than> > hardcoding the codec id there.> > > > Could you check whether the patch below works?> > > > I have tested them and they are okay! Thanks! Great, now I committed to ALSA HG tree. Thanks for testing! Takashi_______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel
