[PlanetCCRMA] jackstart problem

linux_chaos linux_chaos@yahoo.de
Mon Oct 11 08:07:01 2004


try this:

Activating the low latency patch
If you are not running the Planet CCRMA kernel you might not have this
patch installed. Try doing a 'cat /proc/sys/kernel/lowlatency' to see if
it is there. A '0' indicates that the patch is there but not active, a
'1' indicates that it is active, anything else means you don't have it.

If you have it and you just got a '0' you can activate it by doing an
'echo "1" >/proc/sys/kernel/lowlatency'. If you are running redhat you
can automatically activate the low latency patch at boot time by adding
the following line to the /etc/sysctl.conf file:

kernel.lowlatency = 1

hope this helps ...



Am Mon, 2004-10-11 um 22.27 schrieb chunlee:
> hi there:
> i have just apt-get installed jack, and upon starting it with:
> jackstart -R -d alsa -d hw -r 44100
> i got:
> jackstart: cannot get realtime capabilities, current capabilities are:
>            =ep cap_setpcap-e
>     probably running under a kernel with capabilities disabled,
>     a suitable kernel would have printed something like "=eip"
> i am running fedora core 2 with the "2.6.7-1.437.1.11.rhfc2.ccrma"
> kernel. 
> how would i resolve this?
> many thanks
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