Try adding these options to your JVM args :
-Dsun.java2d.opengl=false -Dsun.java2d.xrender=true
Regards, Walid Moghrabi
TRAVAUX.COM BAT I - PARC CEZANNE 2 290 AVENUE GALILEE - CS 80403 13591 AIX EN PROVENCE CEDEX 3
----- Mail original -----
De: "Kevin Kremer" <kkmailinglists@gmail.com> À: "Walid MOGHRABI" <w.moghrabi@servicemagic.eu>, "Ulrich Sibiller" <uli42@gmx.de> Cc: "x2go users" <x2go-user@lists.x2go.org> Envoyé: Mercredi 16 Mai 2018 21:06:20 Objet: Re: [X2Go-User] Problems with java GUI application
Thanks all for your answers.
You should definitely use open-jdk instead of Oracle jdk I tried running OpenJDK but the java application seems to start only when using Oracle Java. I checked the developer's documentation which states Oracle Java as a requirement.
Try with JOSM https://josm.openstreetmap.de/ I tested https://josm.openstreetmap.de/ which runs without any problems.
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? We bought this application (called heimbas) for accounting and documentation. I will try to contact the developers again, even though I fear they will just refer to the RDP connection on our old windows machine where the app is running fine. As far as I know, it does not use any additional libs like OpenGL. Can you tell me how to check the version of nx-libs? I simply installed x2goserver and x2goserver-xsession which apparently do not install an additional nx-libs package (apt policy nx-libs does not know the package).
Best regards, Kevin
On 16 May 2018 15:14, Walid MOGHRABI <w.moghrabi@servicemagic.eu> wrote:
You should definitely use open-jdk instead of Oracle jdk ... I had many issues with Java applications under X2Go (especially unexpected crashes) until I went back to openjdk ... can't explain why but openjdk is A LOT more stable under x2go and not that slower.
Regards, Walid Moghrabi
TRAVAUX.COM BAT I - PARC CEZANNE 2 290 AVENUE GALILEE - CS 80403 13591 AIX EN PROVENCE CEDEX 3
----- Mail original -----
De: "Ulrich Sibiller" <uli42@gmx.de> À: "Kevin Kremer" <kkmailinglists@gmail.com> Cc: "x2go users" <x2go-user@lists.x2go.org> Envoyé: Mercredi 16 Mai 2018 09:28:11 Objet: Re: [X2Go-User] Problems with java GUI application
On Wed, May 16, 2018 at 9:16 AM, Kevin Kremer <kkmailinglists@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
x2go-user mailing list x2go-user@lists.x2go.org https://lists.x2go.org/listinfo/x2go-user
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