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[Roger Allen <rallen@xxxxxxxxx>]

I believe this error

FATAL: cannot locate cpu MHz in /proc/cpuinfo

is related to the Jack Library and I believe it is fixed in the latest source by this checkin:
https://github.com/jackaudio/jack2/commit/d425d8035b761b4a362c538c41eca874ff4995f0

So, I think updating the jackd library would fix the problem for
Audacity.  I haven't tested Audacity myself, but I did test another
audio library Supercollider which had the same error until I installed
my own compiled version of jack.

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https://bugs.launchpad.net/bugs/1347914

Title:
  Audacity crashes on startup while trying to read /proc/cpuinfo

Status in “audacity” package in Ubuntu:
  Confirmed

Bug description:
  root@tegra-ubuntu:~# audacity
  ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave
  ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
  ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
  ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
  ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
  bt_audio_service_open: connect() failed: Connection refused (111)
  bt_audio_service_open: connect() failed: Connection refused (111)
  bt_audio_service_open: connect() failed: Connection refused (111)
  bt_audio_service_open: connect() failed: Connection refused (111)
  ALSA lib pcm_dmix.c:961:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
  ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
  FATAL: cannot locate cpu MHz in /proc/cpuinfo

  It looks like audacity requires the Bogomips value from /proc/cpuinfo which is no more
  present in modern kernels.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: audacity 2.0.5-1ubuntu3.2
  Uname: Linux 3.10.24-gf455cd4 armv7l
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: armhf
  CurrentDesktop: Unity
  Date: Wed Jul 23 22:44:22 2014
  SourcePackage: audacity
  UpgradeStatus: No upgrade log present (probably fresh install)

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