> In the end, what I needed was the following config lines: > > [/etc/modutils/alsa] > > alias char-major-116 snd > alias char-major-14 soundcore > > options snd major=116 cards_limit=4 > > alias sound-service-0-0 snd-mixer-oss > alias sound-service-0-1 snd-seq-oss > alias sound-service-0-3 snd-pcm-oss > alias sound-service-0-8 snd-seq-oss > alias sound-service-0-12 snd-pcm-oss > > alias snd-card-000 snd-powermac > > alias snd-slot-0 snd-card-0 > alias sound-slot-0 snd-slot-0 This is taken care of for me automatically when I put the following into /etc/alsa/modutils/0.9, then ran dpkg-reconfigure alsa-base: ### DEBCONF MAGIC > [/etc/modutils/sound] > > pre-install snd-powermac modprobe dmasound_pmac ; rmmod dmasound_pmac > dmasound_core > post-remove dmasound_pmac rmmod dmasound_pcore > post-install snd-powermac rmmod i2c-keywest && modprobe i2c-keywest I don't have this at all. It is wierd that you have to modprobe dmasound_pmac, then immediately rmmod it. I actually specifically commented out the dmasound_pmac line from /etc/modules. > [/etc/power/pwrctl-local] > > > case "$1" in > minimum) > $logger -p daemon.info -t pwrctl-local "minimum power $2" > ;; > medium) > $logger -p daemon.info -t pwrctl-local "medium power $2" > ;; > maximum) > $logger -p daemon.info -t pwrctl-local "maximum power $2" > $logger -p daemon.info -t pwrctl-local "skipping pwrctl-main" > exit 1 > ;; > warning) > /usr/bin/wall "Low battery, system going down any minute now" > ;; > lid-closed) > $logger -p daemon.info -t pwrctl-local "lid-closed $2" > /etc/init.d/alsa force-stop > ;; > lid-opened) > $logger -p daemon.info -t pwrctl-local "lid-opened $2" > /etc/init.d/alsa start > sh /i2c.sh > ;; > sleep) > $logger -p daemon.info -t pwrctl-local "sleep $2" > /etc/init.d/alsa force-stop > ;; > wakeup) > $logger -p daemon.info -t pwrctl-local "sleep $2" > /etc/init.d/pbbuttonsd restart > /etc/init.d/alsa start > sh /i2c.sh > ;; > *) > $logger -p daemon.error -t pwrctl-local "invalid arg $1 $2" > exit 2 > ;; > esac > > exit 0 > > [/i2c.sh] > > #!/bin/bash > rmmod i2c-keywest && modprobe i2c-keywest I got my version of powerctl-local from this list (Michael Dänzer, I beileve). Instead of specifically running alsa stuff, it runs all the apm power management scripts. So you get all the stuff that's coded for apm (like that wierd /i2c.sh; normally you don't put stuff into / unless you need to). There's lines like "run-parts --arg=suspend --arg=power /etc/apm/event.d" where you have your ALSA stuff. I've attached it here. > Now, I figure that some of this hacking may not have been needed - ugly > kludging abounds. I suspect some of the cluey-er folks on the list may be > able to refine or refute these additions on various grounds. However, it > works. Not only that, it goes to sleep and wakes up without a problem, > only breaking xmms (my testbench, hehe) if put to sleep while playing, > which rates as a minor inconvenience. For me, xmms gracefully stops when I shut the lid, then restarts when I reopen. No inconvenience. :) I did have to specify 'stop-procs' when dpkg-reconfiguring alsa-base. > Configuring xmms for ALSA itself was a little tricky. Initially, with a > buffer time of 500ms and a period time of 50ms, playback was too fast, and > very glitchy. I have achieved stabilisation at 800ms and 60ms, although > there are some minor playback glitches which i can only describe as > high-pitched clicks. It is entirely possible that these are artifacts from > the mp3 or ogg compression as they are present in both file formats. No > .wavs or other formats tested yet. > > Hope this helps someone else out. Actually, this last paragraph really did. I was having the same problem here (with the speed). By increasing the period, the speed went (close) to normal. But I get the same "clicks" that you do (with waves, too). Running with the OSS emulation, it sounds fine. So, I tried to increase the period. At 100ms, the sound is perfect. The size of the buffer doesn't really matter (though I can't keep it configured below 200ms -- it keeps getting reset to 200). What really odd is that at 80 and 90ms, the audio will skip. It gets hung up at one place and repeats a very short section. I wonder if this is the ALSA drivers or XMMS. For mp3 playing, I've only tried it with xmms. What's your sound chip, BTW? I have an original iBook using the powermac DACA driver. Frank
Attachment:
pwrctl-local
Description: application/shellscript