[X2Go-User] Problems with java GUI application

Ulrich Sibiller uli42 at gmx.de
Wed May 16 09:28:11 CEST 2018


On Wed, May 16, 2018 at 9:16 AM, Kevin Kremer <kkmailinglists at gmail.com> wrote:
> Hi all,
>
> I set up an X2Go server to connect to a remote machine and most
> applications run very well. Unfortunately I rely on one java
> application where some of its GUI components suffers huge
> latencies. Here, actions like a click on a button take up to 10
> seconds to perform while there is no delay when running the
> application without X2Go.
> The latencies can be reduced to 4 seconds by reducing the
> connection speed to "MODEM" and the image quality to 0. However,
> the latency is still huge compared to running the application
> locally.
>
> Furthermore, the java application does not re-print its window and
> it stays blank when minimizing the X2Go window.
>
> My setup:
> I use Xfce as a desktop, the connection speed is set to "MODEM",
> the compression algorithm is set to 16m-jpeg, the image quality
> is set to 0 and I use Oracle's JRE 1.8.0_152. The problems also occur
> when I connect to the host within the same LAN.
>
> Maybe someone has encountered similar problem and can give me a
> few hints for solving them.

Are you using the most current version of nx-libs (3.5.99-16)? What's
the name of the app? Is it using OpenGL? And have you tried OpenJDK
instead of Oracle's java?

Uli


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