As I write this, Qjackctl shows 14:35 since the last X Run!!!

I don't have this completely narrowed down as to the offending program(s), however what I did was open the System Monitor and began stopping programs I thought were either likely offenders or simply unnecessary. One thing I didn't realize was that Evolution (linux mail client), despite not being my default mail client and not being active still had 4 programs running - remains to be seen if that's the culprit. Here's what I currently have stopped:

ntpd
evolution-alarm-notifier
evolution-data-server-1.10
evolution-exchange-storage
evolution
freshclam
update-notifier
gnome-screensaver
getty (there were 6 instances of this running, all showing the identical amount of memory being used - I left one on and stopped the other 5 - no idea what this is - will research it further - but doubt this has anything to do with the X run issue, since one is still running)

FYI: I'm now at over 22 mins without an X run, still at my 2ms latency setting and I happen to be watching an HD movie at the same time! (and no, it didn't take me 8 mins to write this - had to have a pillsbury turnover break for fortitude ; - )

I'd really like to thank everyone that helped me with this issue - one of the best things about switching to linux has been the community - thanks guys!!!


Hartmut Noack wrote: 
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Martin Lynch schrieb:
  
Hoping someone can help me figure out what's causing X runs at precisely
10 minute intervals - not 9:59, not 10:01 but exactly 10 mins.
    

Have you got UBUNTU?
I have the exactly same problem here - and nobody in the
UBuntu-Community could offer an answer.

If I watch top very closely I think I can see something about HAL
happening in the timeframe of question - did not manage to find any hint
in the HAL-configuration though....
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