On Mon, 2006-01-30 at 15:14 -0500, Paul Davis wrote: > On Mon, 2006-01-30 at 20:05 +0000, James Courtier-Dutton wrote: > > [EMAIL PROTECTED] wrote: > > > Has anyone managed to successfully get jackd talking to dmix? > > > > > > My dmix setup works fix (i run VoIP stuff, artsd, and other assorted junk > > > through it daily). > > > > > > jackd works great when connect to hw:0,0 or to plughw:0,0 (with the > > > warning), > > > but if I point it at my dmix'd "default" it sits there with 100% CPU > > > usage, > > > and doesn't otherwise operate. > > > > > > Does anyone have this combination of jack and dmix working? > > > > > > > It is due to the fact that the alsa programming in jackd has been > > implemented wrongly. The poll revents are not handled correctly. > > This results is OK operation when using hw:0,0, but likely to fail for > > more exotic alsa configurations like dmix. > > i will happily take a patch for this. or is it just the MMAP_COMPLEX > patch and nothing more?
No, this is a separate issue (ALSA still must be patched to work with JACK + MMAP_COMPLEX). The ALSA developers won't take the patch, they say it's actually JACK that's wrong, but I haven't seen a patch, nor do I know exactly what the problem is. Lee
