12 Mar
2004
12 Mar
'04
2:25 p.m.
I should try again to research this myself ... But since a few of you
seem to know something about linux on macs and I haven't found much in
the past regarding my particular hardware when I have looked ...
I have an old PowerMac 7500 upgraded to a maxpowr G3 300MHz cpu
(originally with a 601 100MHz chip). This is a PCI powermac. Do you know
if I can get linux to run on this machine?
The thing's been powered off for almost 2 years ... but, one of my
longstanding todo items is getting it going as a linux box to have as a
backup for web/mail/irc/etc and possibly basic recording duty in case I
totally hose my main audiobox someday.
Any pointers or experiences with this or similar hardware?
Thanks,
Eric Rz.
On Fri, Mar 12, 2004 at 03:04:56PM +0000, Martin Habets wrote:
From: dmotd
<inaudible(a)dart.net.au>
i'm using the g3 internal soundcard (chip=burgandy) with both the
oss-lite and alsa drivers.. neither driver has improved the
situation.. for a bit of clarity, no sound is passed through the
chip, and capture/recording doesn't work for any of the inputs, in
fact in alsa there are no capture devices available at all and an
inspection of '/proc/asound/card0/pcm0c/sub0/status' reveals the
unfortunate message 'closed'..
It is normal that the status has closed unless you are actually recording.
My G4 titanium uses the snapper chip, so we use the same kernel driver.
What do
you have in /proc/asound/devices? I get:
1: : sequencer
0: [0- 0]: ctl
16: [0- 0]: digital audio playback
24: [0- 0]: digital audio capture
33: : timer
If you get a similar entry for capture, we should be able to get it going.
Make sure your "PCM 1" and "Monitor" entries are turned up in your
mixer.
Like Derek I also have a lot of noise problems, but my best results so far
are with PCM 1 set to 75%-85% and Monitor set to 90%. I'm still puzzled how
these two relate.
on the flipside, os9 has no problems with sound
input, which leads
me to suspect that it has control of an internal setting that linux
does not..
Hmm, haven't checked out the Mac OS side yet. Will have to give that a try
sometime.
can anyone shed some light, or perhaps tell me
who to politely
abuse! btw, i tried alsa-user-list but my msg is trapped in the
moderation blackhole...
You could try a friendly mail to: linuxppc-dev(a)lists.linuxppc.org
I'm using the PPC specific kernels from:
http://penguinppc.org/dev/kernel.shtml
so far with the same results you get (the 2.5 tree realy holds the 2.6
kernel now).
But any fixes will be in here first.
Martin