Comment 2 for bug 996533

I solved my problem. Bug still exists.

I noticed that the terminal freezes when running /usr/sbin/jetpipe. So I modified /opt/ltsp/i386/usr/share/ltsp/init-ltsp.d/50-jetpipe
to:
echo ${${DEVICE}JETPIPE_ARGS}${PORT} > /etc/jetargs
instead of:
/usr/sbin/jetpipe ${JETPIPE_ARGS jetpipe}${DEVICE}${PORT}.

Then I made ​​a script / opt/ltsp/i386/etc/init.d/myjetpipe:

#! / bin / sh
argsfile = "/ etc / jetargs"
if [-f "$argsfile '] THEN
   JETARGS read-r < "$argsfile"
   /usr/sbin/jetpipe $JETARGS
fi

which, of course, is started by RCFILE_XX =/etc/init.d/myjetpipe of lts.conf

I solved the problem with scanners too: saned daemon must be run on terminal as root instead as user saned. The problem with reported free space on USB sticks still have not solved.
I know that this does not solve the bugs, but I just did some tricks to solve my problems. I put it here, maybe help others.

And I still had a question: dude, is anyone here?