I don't know if this is related, let me know if I should open a new bug.

At random times, the external display of my Acer Aspire One netbook goes
black, having seemingly been disabled somehow. Looking at the system
logs, it seems that syndaemon segfaults at the precise time this happens
(I have seen two occurrences of this):

syndaemon[6033]: segfault at 94 ip b7f7c1b7 sp bfa7fc90 error 4 in
libX11.so.6.2.0[b7f67000+eb000]

I am not sure if this is what disables the external monitor or a
consequence of something else going wrong.

I invoke syndaemon from the "sessions" dialog with:

syndaemon -d -t -i 1-k

with the intention of preventing accidental taps when typing. For the
moment I've disabled the "sessions" entry, but I don't know yet if this
stabilizes the external display or not, since the problem happens at
random.

Running up-to-date Intrepid, BTW.

-- 
syndaemon crashed with SIGSEGV in XCloseDisplay()
https://bugs.launchpad.net/bugs/282735
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