Audio tests on pure64
Hello all,
I have attempted to build a DeMuDi style kernel on pure64 using the
Debian source package of 2.6.10 as a base. It patched OK, but during
'make' I ran into this xtime_lock bug which only seems to affect
x86_64 systems:
http://lkml.org/lkml/2004/12/10/108
However, the latency performance of unpatched 2.6.10 doesn't seem to
be that bad, from other reports. I was even able to run jackd on the
unpatched Debian 2.6.8 without xrun hell (I had to run as root in
order to set the realtime option though). It seems that 2.6.11 has a
number of latency improvements to come, too:
http://seclists.org/lists/linux-kernel/2005/Jan/0618.html
On the applications side, I have ardour 0.9beta24 running without
problems so far, Hydrogen and qjackctl. Rosegarden4 and Audacity
installed OK, but I haven't had a chance to test them yet. Alsa
worked fine out of the box after running alsaconf. I can't seem to
find the envy24control mixer in the apt archive - I may need to
create a package for that.
However, Jamin segfaults after a brief flash of the GUI. Norval -
could you do an apt-get install jamin on your Pure64 box, start
jackd, run jamin and see if the same behaviour happens for you? If
so, I'll bring it to the attention of the Jamin developers. I'll
probably have to try building it from source with debugging enabled.
(By the way, the pure64 team appear to have done a really good job
with this distribution. For something so bleeding edge, the
infrastructure seems really solid. Thanks!)
Daniel
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