The main one is Rstudio 1.1.456 which was installed from the .deb package 
available from https://download1.rstudio.org/rstudio-xenial-1.1.456-amd64.deb 
(64.9MB).

Without the workaround, RStudio fails to launch with the same sort of error 
reported earlier in this thread. With the workaround, users reported “…quite 
difficult to navigate, slow response from server. In particular but not only 
when using R studio. As well as constant flickering of server window” and "The 
server window is often “flickering”, and response time is very slow."


From: Ulrich Sibiller 
<[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Date: Monday, 22 October 2018 at 4:55 pm
To: Adrian Bickerstaffe 
<[email protected]<mailto:[email protected]>>, 
"[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Subject: Re: [X2Go-Dev] Bug#1312: QT applications crash with x2go server 4.1.0.2

Can you name some problematic apps that crash with the line commented? I have a 
patch that might help. I would like to test a bit.

Uli

Adrian Bickerstaffe <[email protected]<mailto:[email protected]>> 
schrieb am Mo., 22. Okt. 2018, 08:09:
I can verify that this also occurs on my compute servers running Ubuntu 
14.04LTS and 16.04LTS.
Commenting the line:

X2GO_NXAGENT_DEFAULT_OPTIONS+=" -extension BIG-REQUESTS"

in x2goagent.options does resolve the issue, *but* there is a comment above 
that line:

# Disable BIG-REQUESTS, nx-libs does not implement this extension correctly.
# Leads to all sorts of weird crashes if left enabled.

…which unfortunately has proven to be true for my instances. The performance 
and reliability of x2go has dropped substantially since commenting the line.

Can we please raise the priority of this bug to restore performance?

Regards, Adrian.

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