[Octave-bug-tracker] [bug #44174] Remote X-Window display: command window blank, all other windows fine

[Reik Red]

Follow-up Comment #19, bug #44174 (project octave):

Michael, I think I may have found a workaround:

I had a similar experience this week after upgrading from Fedora 19 to Fedora
23 and also re-compiling Octave.

The gui window will open, but as soon as I try to run anything that opens a
figure() window, everything hangs and  the octave gui goes blank and
unresponsive.

After much trouble I found out that the problem was related to the ssh
X11Forwarding mechanism, which I was using for the login into the machine
where I started octave (which was actually localhost, but I was using ssh -X
anyway).

Workaround: If I invoke octave with 

env DISPLAY=:0 octave

rather than allowing it to run with the DISPLAY=localhost:11 tunnel that ssh
-X creates, then the problem goes away.

I have not been able to find what was wrong with /etc/ssh/ssh_conf. I tried
multiple variations (yes/no) of

ForwardX11 yes
Tunnel yes

with no luck. Not even sure if Tunnel is relevant. Also tried ssh -Y (not -X)
with setting "ForwardX11Trusted yes" is ssh_config. No luck.


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