[linux-audio-user] Which kernel for low latency?

James Stone stone1 at btinternet.com
Sat Jan 17 12:29:18 EST 2004


Oops.. just read the rest of your post.. obviously this was not the
problem.

Just to let you know, I have just had a few more problems with alsa/2.6.
Turns out that module unloading for USB devices is a bit flakey.. I have
to disable this on shutdown or I get a kernel panic when my usb keyboard
is switched on.

Good luck.

James

On Fri, Jan 16, 2004 at 10:59:19PM +0000, James Stone wrote:
> Yep I have got Jack working with all versions of 2.6.x
> 
> It runs as root no problem or with jackstart with capabilities patch
> applied as per jack FAQ.
> 
> Just a silly question but you have got the volumes turned up on the
> mixer haven't you?
> 
> James
> 
> On Sat, Jan 17, 2004 at 08:09:43AM +1300, Glenn McCord wrote:
> > I've been using a 2.4.2 kernel with Andrew Morton's patches and I got 
> > jack to work very well. However, seeing 2.6 is the latest and greatest 
> > I'd like to switch but am having no luck thus far.
> > 
> > Q. If anyone has got jack to work great with a 2.6(.1) kernel could you 
> > share with me what version of the 2.6 kernel you used and what patches 
> > (if any)
> > 
> > At the moment I'm trying a 2.6.1 with an mm4 patch but I'm getting no 
> > sound with my soundblaster live.
> > I've done:
> >       <*> Sound card support
> > 
> > and, under Advanced Linux Sound Architecture --->
> > 
> >       <*> Advanced Linux Sound Architecture
> >       <*> Sequencer support
> >       <*> OSS API emulation
> >       <*> OSS Mixer API
> >       <*> OSS PCM (digital audio) API
> >       <*> OSS Sequencer API
> > 
> > rebooted and install alsa-lib-1.0.1 and alsa-utils-1.0.1 as well but I 
> > get these errors
> > 
> > root at upstairs glenn # aplay /usr/kde/3.2/share/sounds/pop.wav
> > ALSA lib pcm_hw.c:1055:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: 
> > No such file or directory
> > aplay: main:502: audio open error: No such file or directory
> > 
> > and
> > 
> > glenn at upstairs glenn $ alsamixer
> > No mixer elems found
> > 
> > I'm at a loss but am interested at what type of kernel others are using. 
> > I think my next best bet is to remove alsa from the kernel and install 
> > it seperately.
> > 
> > Thanks
> 
>                                           From linux-audio-user-bounces at music.columbia.edu Sat Jan 17 07:38:38 2004
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> On Fri, 16 Jan 2004 18:27:27 +0100
> Jan Weil <Jan.Weil at web.de> wrote:
> 
> 
> > So you could do me a favour and edit lib/visecas/ecasound.rb by hand
> > instead.
> > Increase the TIMEOUT constant (line 76) and try if that changes your
> > situation.
> > 
> that did the trick. thanks.
> 
> m 
> 
> 
> ---->  http://www.mprims.tk




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