'Twas brillig, and [email protected] at 24/09/09 11:16 did gyre and gimble:
I've already tried to determine the exact parameters for the alsa
modules, but I don't know to do that (lsmod and dmesg don't help). The
only thing I can do is compare the alsa-base.conf files where the
options are stored, but these files are identical, except for the
'probe_mask'. But without that I have neither sound output nor a capture
device. I also compared the alsa-info files but again the only
difference I see is 'probe_mask' related. To be honest, the more I
investigate the less sense this all makes to me. Yesterday I tried again
to record from within the live session and it works perfectly. Even the
mic volume is very loud without a boost. This is driving me crazy...
Here are the differences within the /etc/pulse/daemon.conf file (the
other files are identical)
daemon.conf:
; rlimit-rtttime = 1000000
vs
; rlimit-rttime = 1000000
; flat-volumes = yes
vs
flat-volumes = no
I assume the first is a typo?? Anyway, it's commented out. And you
already noticed the flatvolumes thing, so nothing new there....
Yeah I fixed the typo the other day :p
Flat volumes shoudn't affect things at all but the other flag relating
to HW volume control is telling. It basically tells me that the
underlying alsa stuff is different in some what, so I'm swaying slightly
on the side of it being an alsa issue in some capacity... possibly
compounded by other issues tho'.
I guess you could test the recording at the alsa level with some arecord
commands may help confirm it but even then I'm still not sure.
I've posted to the alsa users mailing list, maybe one of the people
there has got an idea. Thanks again for your help, if you've got any
other suggestions I'll be happy to try them out!
Cool. I'll keep an eye open there too.
Col
--
Colin Guthrie
gmane(at)colin.guthr.ie
http://colin.guthr.ie/
Day Job:
Tribalogic Limited [http://www.tribalogic.net/]
Open Source:
Mandriva Linux Contributor [http://www.mandriva.com/]
PulseAudio Hacker [http://www.pulseaudio.org/]
Trac Hacker [http://trac.edgewall.org/]
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