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[Roger Allen <rallen@xxxxxxxxx>]

I've created a gist describing how to work around this.

https://gist.github.com/rogerallen/0346a1812deda2a380da

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https://bugs.launchpad.net/bugs/1353832

Title:
  arm CPUs get "FATAL: cannot locate cpu MHz in /proc/cpuinfo"

Status in “jackd2” package in Ubuntu:
  Confirmed

Bug description:
  Trying to run the Supercollider http://supercollider.github.io/ sound
  synthesis program on an ARM-based NVIDIA Jetson TK1, I received this
  error.  I also received this when I tried jack_simple_client

  FATAL: cannot locate cpu MHz in /proc/cpuinfo

  This is from the Jack Library.  
  $ apt-cache policy libjack-jackd2-0:armhf
  libjack-jackd2-0:
    Installed: 1.9.9.5+20130622git7de15e7a-1ubuntu1
    Candidate: 1.9.9.5+20130622git7de15e7a-1ubuntu1
    Version table:
   *** 1.9.9.5+20130622git7de15e7a-1ubuntu1 0
          500 http://ports.ubuntu.com/ubuntu-ports/ trusty/main armhf Packages
          100 /var/lib/dpkg/status
  (updated in 2013)

  The issue is fixed in the latest source by this checkin: (from March, 2014)
  https://github.com/jackaudio/jack2/commit/d425d8035b761b4a362c538c41eca874ff4995f0

  I have found this latest source works for me if I compile and install
  jack by hand.  So, I think updating the libjack-jackd2-0:armhf library
  would be desirable.  Until then, all ARM-based systems can't use jack.

  Also see
  https://bugs.launchpad.net/ubuntu/+source/audacity/+bug/1347914 for a
  similar report for the program Audacity.

  Additional details

  $ lsb_release -rd
  Description:	Ubuntu 14.04.1 LTS
  Release:	14.04

  $ uname -a
  Linux muggy 3.10.24-gf455cd4-dirty #3 SMP PREEMPT Tue Jul 22 12:20:38 PDT 2014 armv7l armv7l armv7l GNU/Linux

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