Subject: [linux-audio-user] ams, jackd & X as root? on debian
From: Eric Dantan Rzewnicki (eric_AT_zhevny.com)
Date: Fri Dec 27 2002 - 05:41:32 EET
I have jack installed and working now. So, now I'm trying to get
AlsaModularSynth compiled and running. Has anyone else accomplished this
in debian stable (woody)?
I installed libqt3-mt (along w/everything it depended upon), fftw-dev,
fftw2, sfftw-dev, sfftw2 and ladspa-sdk to get ladspa.h. I've tried to
edit the top of make_ams to agree with the location of the qt3 libs, bin
and include directories on my system as best as I could figure ... but
I'm not sure I got it right:
it seems to compile OK when I do:
make -f make_ams
though there are a lot of warnings about comparing signed to unsigned
and other warnings that flew by. Are these benign?
Anyway. I end up with an executable ams. When I run ./ams I get this:
./ams: error while loading shared libraries: libjack.so.0: cannot open
shared object file: No such file or directory
I have that in /usr/local/lib/libjack.so.0 so creating this link appears
box1:/usr/lib# ln -s /usr/local/lib/libjack.so.0 libjack.so.0
Is that the correct sollution?
ams: cannot connect to X server
I assume this is because X is running as me (eric) and not as root. I'll
try getting out of X and starting it as root as soon as I finish writing
this message. But, is there a way to let root connect to the X server
that's running as eric?
I was sort of ok (well, not really, but I'm giving it a try) with the
idea of running jackd and its clients as root ... but, running X as
root, too? that makes me more nervous, somehow... maybe I shouldn't be
nervous about that ... I'm not sure.
anyway. i'll give it a shot with a root X session.
I'm thinking that maybe I should patch and recompile the kernel and
recompile jack to enable capabilities so I don't have to run as root.
Do those of you running jackd as root also run your X session as root?
Thanks for listening,
PS If all of this has been covered before and my questions are annoying
you, feel free to send me to the archives. I try to follow jackit-devel,
but most of it seemed to go over my head before I actually started to
try it. So, re-reading the past couple months would probably do me some
good now that I have the real thing in front of me. -edrz
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