20 Sep
2004
20 Sep
'04
11:45 a.m.
Hello everybody,
I use mandrake and i want to switch to debian, i have mdk 10.0 and debian
sarge currently installed.
As a musician i use band in a box with wine alsa and timidity with the same
kernel + config (stock 2.6.8 no preemption) on both system.
However, the sound is great on mandrake whereas it is crappy (glitches,
scratches, not regular) on debian (even trying the LD_ASSUME_KERNEL=2.4.22
trick). I don't use jack.
How comes there is such a difference between two system that uses the same
kernel and config?
Where should i look since the kernel and modules are the same (are they?)?
Thanks
rico
20 Sep
20 Sep
11:56 a.m.
New subject: [linux-audio-user] same kernel and big differences between mandrake and debian?
On Mon, 2004-09-20 at 13:10 +0200, rico wrote:
How comes there is such a difference between two
system that uses the same
kernel and config?
Where should i look since the kernel and modules are the same (are they?)?
By using the "stock" kernel, so you mean you compiled it from vanilla,
or do you mean the standard kernel included with each distro.
If the latter, I assure you that the Mandrakelinux and Debian kernels
will be VERY different. We have a few hundred patches in our kernel.
If you're compiling from vanilla, there shouldn't be such a defference.
Maybe different alsa or glibc version?
Keep in mind that Mandrakelinux is i586 optimized, except glibc which is
i686 optimized. Debian is only i386 AFAIK.
Austin
4:47 p.m.
New subject: [linux-audio-user] same kernel and big differences between mandrake and debian?
Le lundi 20 Septembre 2004 19:39, Austin a écrit :
On Mon, 2004-09-20 at 13:10 +0200, rico wrote:
Sorry for the imprecision, both system use the vanilla kernel (preemption
disabled) from kernel.org, both are compiled for an amd processor with the
same .config file.
The difference is such that on debian it's just impossible to use band in a
box with wine whereas it works great on mandrake!
How comes there is such a difference between two
system that uses the
same kernel and config?
Where should i look since the kernel and modules are the same (are
they?)?
By using the "stock" kernel, so you mean you compiled it from vanilla,
or do you mean the standard kernel included with each distro.
If the latter, I assure you that the Mandrakelinux and Debian kernels
will be VERY different. We have a few hundred patches in our kernel.
If you're compiling from vanilla, there shouldn't be such a defference.
Maybe different alsa or glibc version?
Keep in mind that Mandrakelinux is i586 optimized,
except glibc which is
i686 optimized. Debian is only i386 AFAIK.
Austin
Maybe this is the point but i don't know how to solve it.
I know that the glibc version differ between mandrake and debian i'll
investigate that.
I wonder if there is a place somwhere in mandrake's distro, where they tweaked
something to better the sound system ...(alsa option, IRQ fiddling, or
something...)
Thanks for your advice
Rico
8:10 p.m.
New subject: [linux-audio-user] same kernel and big differences between mandrake and debian?
On Mon, Sep 20, 2004 at 07:55:01PM +0200, rico wrote:
Le lundi 20 Septembre 2004 19:39, Austin a ?crit?:
Since you already have debian sarge installed you might consider adding
packages from Demudi/Agnula: http://demudi.org/
At the very least you should be able to use their kernel .debs. I'm not
sure because I haven't used demudi yet myself, but it may be as simple
as adding a demudi line to your /etc/apt/sources.list and apt-get
install'ing the appropriate package(s).
For what it's worth, I do audio work on a debian sarge box. I'm using a
patched 2.6.x kernel. Others are having good success with low-latency
patched 2.4.x kernels on debian as well. I doubt differences in
processor optimizations between debian and mandrake are your problem.
Especially since you say you have the same kernel .config for both
installations.
-Eric Rz.
On Mon, 2004-09-20 at 13:10 +0200, rico wrote:
Sorry for the imprecision, both system use
the vanilla kernel (preemption
disabled) from kernel.org, both are compiled for an amd processor with the
same .config file.
The difference is such that on debian it's just impossible to use band in a
box with wine whereas it works great on mandrake!
How comes there is such a difference between two
system that uses the
same kernel and config?
Where should i look since the kernel and modules are the same (are
they?)?
By using the "stock" kernel, so you mean you compiled it from
vanilla,
or do you mean the standard kernel included with each distro.
If the latter, I assure you that the Mandrakelinux and Debian kernels
will be VERY different. We have a few hundred patches in our kernel.
If you're compiling from vanilla, there shouldn't be such a defference.
Maybe different alsa or glibc version? Keep in mind that Mandrakelinux is i586
optimized, except glibc which is
i686 optimized. Debian is only i386 AFAIK.
Austin
Maybe this is the point but i don't know how to solve it.
I know that the glibc version differ between mandrake and debian i'll
investigate that.
I wonder if there is a place somwhere in mandrake's distro, where they tweaked
something to better the sound system ...(alsa option, IRQ fiddling, or
something...) 
21 Sep
21 Sep
4:48 p.m.
New subject: [linux-audio-user] same kernel and big differences between mandrake and debian?
Last Monday 20 September 2004 22:53, Eric Dantan Rzewnicki was like:
On Mon, Sep 20, 2004 at 07:55:01PM +0200, rico wrote:
> Le lundi 20 Septembre 2004 19:39, Austin a ?crit?:
> > On Mon, 2004-09-20 at 13:10 +0200, rico wrote:
> > > How comes there is such a difference between two system that uses the
> > > same kernel and config?
> > > Where should i look since the kernel and modules are the same (are
> > > they?)?
> >
> > By using the "stock" kernel, so you mean you compiled it from
vanilla,
> > or do you mean the standard kernel included with each distro.
> > If the latter, I assure you that the Mandrakelinux and Debian kernels
> > will be VERY different. We have a few hundred patches in our kernel.
> > If you're compiling from vanilla, there shouldn't be such a defference.
> > Maybe different alsa or glibc version?
>
> Sorry for the imprecision, both system use the vanilla kernel (preemption
> disabled) from kernel.org, both are compiled for an amd processor with
> the same .config file.
> The difference is such that on debian it's just impossible to use band
> in a box with wine whereas it works great on mandrake!
>
> > Keep in mind that Mandrakelinux is i586 optimized, except glibc which
> > is i686 optimized. Debian is only i386 AFAIK.
> > Austin
Eh? Whatareyoutalkingabout?
I don't know much about kernels, I have never rolled my own, partly because
I've never felt I needed to. I've used Debian/...AGNULA/DeMuDi multimedia
kernels for the past two years with no problems. However I've not tried this
exact combination of software with it. All Debian kernels come with -386 -586
-686 -k7 etc variants. Does that not count as optimised in the way Austin
means?
--Genuine question btw---
Maybe this is
the point but i don't know how to solve it.
I know that the glibc version differ between mandrake and debian i'll
investigate that.
I wonder if there is a place somwhere in mandrake's distro, where they
tweaked something to better the sound system ...(alsa option, IRQ
fiddling, or something...)
Since you already have debian sarge installed you might consider adding
packages from Demudi/Agnula: http://demudi.org/ At the very least you should be able to use their
kernel .debs. I'm not
sure because I haven't used demudi yet myself, but it may be as simple
as adding a demudi line to your /etc/apt/sources.list and apt-get
install'ing the appropriate package(s).
It is. Use the Agnula multimedia kernels for music work.
Information here:
http://wiki.agnula.org/wiki/wiki.phtml?title=DeMuDi-Testing
http://www.agnula.org/download/demudi/1.2.0-FAQ
For the record, I have nothing against Mandrake, of course. Debian suits my
needs better. It's a more 'purist' distro and adheres much more strictly to
GNU / Free Software / GPL guidelines than other distros. For this reason it
may not interface so willingly with proprietary soft/hardware. If your focus
is music, I'd recommend installing AGNULA/DeMuDi it's much less hassle than
trying to figure why vanilla Debian won't do the things you want. Whether it
handles Band-in-a-box via Wine any better I honestly have no idea.
I suspect it will take just as much work whichever way you go about it.
cheers
tim hall
7508
days inactive
7509
days old
linux-audio-user@lists.linuxaudio.org
4 comments
4 participants
participants (4)
-
Austin -
Eric Dantan Rzewnicki -
rico -
tim hall