At Tue, 28 Oct 2008 19:33:19 +0000, Jason Harvey wrote: > > Takashi Iwai wrote: > > At Tue, 28 Oct 2008 17:40:40 +0000, > > Jason Harvey wrote: > > > >> The Source wrote: > >> > >>> You can't hear desktop sounds because they always use pulseaudio no > >>> matter what sound system you select as default. For me pulseaudio > >>> plays first sound fine after start, others are corrupt along with > >>> sound from all other apps. I'll post hw_params later. Also pulseaudio > >>> tends to crash often with this driver so I suppose your problem is the > >>> same. > >>> > >> Can confirm that once pulse (on FC9 at least) gets involved it sounds > >> terrible. > >> > >> I worked out that I had removed a package pulseaudio-esound-compat at > >> some point in the past and never realised that it contains the symlinks > >> that gets Gnome to start the pulse server. > >> Once that was fixed the desktop effects started working but only out of > >> my USB headset... and nothing I can find in the gui lets me do anything > >> about it. > >> > > > > In many cases, the pulse problem comes from the in accurate DMA position > > calculation. PA is often too aggressively updating buffers. > > > Thanks, I knew there was a reason I stripped pulse out of this machine > when I installed FC9. > Is that a bug in pulse or is it something that will improve with the > sbxfi driver? Basically it's a bug of the driver. > >> mplayer and firefox/flash sound terrible, very tinny and scratchy. > >> This is with the base_rate=48000 option set in modprobe.conf > >> > > > > Do you mean a regression with 48kHz in comparison with 96kHz? > > > > > Sorry that was a bit ambiguous, I'd never tried 96kHz. > Have just changed base_rate to 96kHz and it performs identically to 48kHz. > Pulse mangles the sound in just the same manner at 48kHz or 96kHz. Ah, so you meant mplayer/flash with PA backend? > While I was poking about in my alsa configuration I noticed that there > is no /etc/alsa/cards/SBXFi.conf > I think pulse looks for it, get errors shown after running pulseaudio -vv > ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition > 'cards.SBXFi.pcm.surround51.0:CARD=0' > Would that make any difference to anything? > (Sorry if pulse issues are totally off-topic) It just tries to non-existing configuration, and you can ignore it. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
