For a few years I have used an Atom UMPC as my "mobile development terminal", allowing me to build and run code at much lower performance than I would expect from a "real" system but good enough for working on new bits of code and finding performance bottlenecks :) I am migrating over to a Nexus 7 with a Debian chroot environment and tightvnc for display. This is working great for most things. The last bit is to be able to run jackd so I can actually test audio parts of the programs I work on the most. I don't care about latency, or even xruns. This isn't for production use. I just want to be able to exercise the jack client library, make connections, and hopefully get SOME audio output. The current problem I am having is that sys V shared mem API is not supported. $ jackd -d alsa jackdmp 1.9.9 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2012 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK semaphore error: semget creation (Function not implemented) jack_shm_lock_registry fails... No access to shm registry Failed to open server Has anybody done anything like what I'm working toward? Any workarounds for missing shm API?