On Mon, May 23, 2011 at 1:50 PM, Colin Guthrie <gmane at colin.guthr.ie> wrote: > 'Twas brillig, and Andrew Lutomirski at 23/05/11 18:21 did gyre and gimble: >> What is the kernel supposed to do to get PulseAudio to DTRT? ?On some, >> but not (I think) all, models, we can disable hardware mixer control >> and make all of the buttons act like ordinary buttons, but that will >> cause the light (if present) to malfunction, and I don't know if all >> models can do this. ?So as it stands, PulseAudio would have to >> understand that the mixer is special and watch for ALSA change >> notifications. >> >> I'm willing to change the thinkpad-acpi driver to make it work better, >> but I know nothing at all about PulseAudio internals. ?What should I >> do? > > Can you give some more details? > > e.g. does it show up under the same alsa card as the HDA or is it separate? > > amixer -c0 (or appropriate number) would be useful to begin with :) It's separate. I can send details when I get home, but from memory: alsamixer -c1 sees the HDA mixers. alsamixer -c29 sees the thinkpad-acpi mixer. On recent thinkpads with my pending thinkpad-acpi changes, alsamixer -c29 will update itself when the hardware buttons change the mixer state. Without my patches, alsamixer won't notice. The magic hardware mixer is a created by the thinkpad-acpi driver without any attempt to associate it with any other ALSA device on the system. I suspect that the driver should be doing something different (and again, I'm willing to make and submit changes, but I don't know what it should do to make PulseAudio happy). --Andy > > Thanks > > Col > > > -- > > Colin Guthrie > gmane(at)colin.guthr.ie > http://colin.guthr.ie/ > > Day Job: > ?Tribalogic Limited [http://www.tribalogic.net/] > Open Source: > ?Mageia Contributor [http://www.mageia.org/] > ?PulseAudio Hacker [http://www.pulseaudio.org/] > ?Trac Hacker [http://trac.edgewall.org/] > > _______________________________________________ > pulseaudio-discuss mailing list > pulseaudio-discuss at mail.0pointer.de > https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss >
