Posted by Tzargoth on May 11, 2019; 9:46pm
URL: https://forum.jogamp.org/JOGL-demo-and-other-apps-show-only-black-canvas-window-tp4039768.html

A few weeks ago I tried to use an Eclipse?/Java based app, but it's graphics rendering would not work.  The app developers were not able to help me.  Today, I downloaded the latest? JOGL demos from http://jogamp.org/deployment/jogamp-current/archive/ and https://jogamp.org/deployment/webstart/jogl-demos/jar/, since I couldn't get the web start to work (error loading the jnpl files, "name cannot be null").

I ran the Gears demo from command line and get the same black canvas/window.  This isn't my code, so assuming this is a driver or JOGL issue.  However, my Linux system's video drivers are up to date, as far is I can tell.

System specs:
  Dell Precision M4600
  [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT]
  Xubuntu 16.04
  driver=radeon
  openjdk version "1.8.0_191"
  OpenJDK Runtime Environment (build 1.8.0_191-8u191-b12-2ubuntu0.16.04.1-b12)
  OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)

Any ideas how to get rendering working?