[Octave-bug-tracker] [bug #44840] Plotting with Qt or FLTK from remote system fails

[Michael Godfrey]

Follow-up Comment #19, bug #44840 (project octave):

Mike said:
You actually reported this last year, and bug #44840 is still open, nothing
has changed, closing as a duplicate.

Right, a year is a pretty long time and I forgot and this
is now version 4.1.0+. So, that could be updated. 

But, I also attached a dump trace to where it hangs and 
additional information. The information is:
The following: 
ssh "remote linux system" (in my case remotethe system is 
the same 
Fedora 23 as the local host) 
++verbatim 
cd to octave build directory 
./run-octave --no-gui --debug --echo 
plot(1:100) 
-- 
Result: 
The frame for Figure 1 appears, but then system 
hangs before plotting any data. 
Output up to the hang is attached. 
If you run just 
./run-octave 
on the remote system, the GUI appears and works until 
a plot command is used. Then it hangs as before. 
This also fails on release 4.0.1, but I am 
pretty sure that this worked at some point in the 
past. 
As the Summary says, using toolkit gnuplot works. 

A trace of the code to the hang is attached.

Most of the history in this report is now pretty irrelevant,
but Mike preferred to continue this report.


(file #37103)
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File name: octave_remote_hang_May_7_2016_bug47873 Size:10 KB


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