Nigel Henry wrote:
On Thursday 02 August 2007 16:21, Karl Larsen wrote:
Andy Green wrote:
Somebody in the thread at some point said:
I read but did not understand any details of udev but I am certain
it is why my old application called gmfsk finds that /dev/dsp is busy.
It is not busy but the current setup of udev makes it appear busy. Also
it is certain that udev can have upset with the new kernels and be
causing the problems some or most of us are having.
What makes you think /dev/dsp isn't busy, and if it is busy, that udev
is to blame? Try this
lsof -n | grep /dev/dsp
it should list any processes that have /dev/dsp open.
-Andy
I did that and got no result. I think that means it is not busy?
--
Karl F. Larsen, AKA K5DI
Linux User
#450462 http://counter.li.org.
Hi Karl. Did you have the gmfsk ham radio app running when you tried the above
command? I seem to remember a while back that you said that rx was ok, but
you got the /dev/dsp problem when tx'ing.
Yes that is correct. It does work through the same /dev/dsp on receive
of course.
It may be worth trying starting gmfsk with aoss. You need to install the
package alsa-oss, then launch the app as.
aoss gmfsk
That is if gmsfk is the command for launching it.
I've just looked at this on one of my 2 machines that does not have a
soundcard capable of multiple audio streams. I listen to Internet radio, and
start opera with, aoss opera. This way I can use other audio apps at the same
time. I ran /usr/sbin/lsof -n | grep /dev/dsp while listening to Internet
radio, and just got a return to the command prompt. Btw www.bbc.co.uk/radio4
uses the BBC radio player, that is using RealPlayer (an OSS app).
So next I close Opera, and open Firefox, which isn't started using "aoss". Go
to www.bbc.co.uk/radio4, click on listen live, and re-run,
/usr/sbin/lsof -n | grep /dev/dsp
This time I get the following output.
$ /usr/sbin/lsof -n | grep /dev/dsp
realplay. 29809 djmons 5w CHR 14,3 360131 /dev/dsp
Now /dev/dsp is busy, and I know I can't use more audio apps while it's in
this state.
It's worth giving aoss a try. There's nothing to lose, and if it works, it
works.
I think you also said that gmfsk was working ok on FC6. Was that on the same
machine, with the same soundcard? If so, it is a bit strange that it's not
working on F7.
There are problems with UDEV, and I've had problems with the ordering of video
devices. Thankfully resolved for my Debian installs from help on the Debian
list, and hopefully the same fix will work on my FC installs that are using
UDEV.
All the best.
Nigel.
OK I yummed the 2 files and used $ aoss gmfsk and as you expected it
worked! I will do some learning as to why in the future but thanks for
the idea. It now runs on F7
--
Karl F. Larsen, AKA K5DI
Linux User
#450462 http://counter.li.org.
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