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alsaconf
The /usr/sbin/alsaconf script used in Puppy has been fairly heavily hacked over the years by me. Last week a 4.00 tester reported that sound did not work, but when that person used the alsaconf script that came with alsa-utils-1.0.16 package, sound worked.
So, I got that script, put in some hacks for it to work better in Puppy, tried it, and lo-and-behold, sound worked for me too. On my laptop, which uses the snd_hda_intel module, sound does not work with some versions of ALSA. I don't recall exactly, but it was working with 1.0.11 I think, stopped working later, came back with 1.0.14, then went away again with the latest as used in pup 4.00, 1.0.16.
Until I ran the alsaconf script that is, then it came back. Now, I see one difference. I had these lines in /etc/modprobe.conf:
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
The alsaconf script removed those lines. Right, so I will take them out of the original modprobe.conf.