If I leave jackd running and hibernate-mem my laptop, when i wake it up jackd has quit and will not start again without a reboot. This occurs 100% of the time. If i shut down jack before suspending, it will start normally when i wake the machine up. I'm working on a scriptlet to be run by the hibernate scripts that will check to see if jackd is running and kill it before suspend. But that's turned out to be some challenging bash-ing indeed, and so i'm wondering if there is anything i can do to get jackd to start without having to reboot, in the meantime. ( like, manually fixing the broken pipe? ) And also, btw, what is a signal 7? Here is what pops up in the message window of qjackctl. I noticed that jackd starts, but then the "watchdog thread" kills it. 11:21:03.630 /usr/bin/jackd -R -dalsa -dhw:0 -r44100 -p2048 -n3 -S 11:21:03.664 JACK was started with PID=19379 (0x4bb3). jackd 0.101.1 Copyright 2001-2005 Paul Davis and others. jackd 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 compiled with System V SHM support. loading driver .. No supported SIMD instruction sets detected apparent rate = 44100 creating alsa driver ... hw:0|hw:0|2048|3|44100|0|0|nomon|swmeter|-|16bit control device hw:0 configuring for 44100Hz, period = 2048 frames, buffer = 3 periods nperiods = 3 for capture nperiods = 3 for playback 11:21:05.682 Server configuration saved to "/home/brian/.jackdrc". 11:21:05.683 Statistics reset. 11:21:05.689 Client activated. 11:21:05.690 Audio connection change. 11:21:05.692 Audio connection graph change. No supported SIMD instruction sets detected 11:21:05.892 Audio active patchbay scan... jackd watchdog: timeout - killing jackd zombified - calling shutdown handler 11:21:09.405 Shutdown notification. 11:21:09.406 Client deactivated. 11:21:09.407 JACK was stopped successfully. cannot send request type 7 to server cannot read result for request type 7 from server (Broken pipe) cannot send request type 7 to server cannot read result for request type 7 from server (Broken pipe) thanks guys.