diff --git a/harmonic/troubleshooting.md b/harmonic/troubleshooting.md index 825cf62ab..cab4599d7 100644 --- a/harmonic/troubleshooting.md +++ b/harmonic/troubleshooting.md @@ -189,6 +189,18 @@ XWayland by unsetting the `WAYLAND_DISPLAY` environment variable, e.g. env -u WAYLAND_DISPLAY gz sim -v 4 shapes.sdf ``` +### EGL warnings + +On startup, Gazebo prints out EGL warning messages like the one below: + +``` +libEGL warning: DRI2: failed to create dri screen +``` + +This message is printed out by Ogre 2 on initialization when it enumerates +through devices to query for EGL support. The warning is fine to ignore. Gazebo +should continue to operate without any issues. + ## Windows diff --git a/ionic/troubleshooting.md b/ionic/troubleshooting.md index 146bc40ab..958d4aa77 100644 --- a/ionic/troubleshooting.md +++ b/ionic/troubleshooting.md @@ -169,21 +169,39 @@ If that loads, you can continue to use Gazebo with Ogre 1, just use the ### Wayland issues -For users on Wayland, you will need to make sure Gazebo is launched with -XWayland. - -If you see an error message like the one below: +There's an issue with the interaction of Ogre and Qt in Gazebo that prevents wayland from +working properly. You might see an error message like the one below: ``` Unable to create the rendering window: OGRE EXCEPTION(3:RenderingAPIException): currentGLContext was specified with no current GL context in GLXWindow::create at ./RenderSystems/GL3Plus/src/windowing/GLX/OgreGLXWindow.cpp (line 165) ``` -try unsetting the `WAYLAND_DISPLAY` environment variable, e.g. +A workaround is to set `QT_QPA_PLATFORM=xcb`. e.g.: + +``` +QT_QPA_PLATFORM=xcb gz sim -v 4 shapes.sdf +``` + +Another workaround to try is to make sure Gazebo is launched with +XWayland by unsetting the `WAYLAND_DISPLAY` environment variable, e.g. ```sh env -u WAYLAND_DISPLAY gz sim -v 4 shapes.sdf ``` +### EGL warnings + +On startup, Gazebo prints out EGL warning messages like the one below: + +``` +libEGL warning: DRI2: failed to create dri screen +``` + +This message is printed out by Ogre 2 on initialization when it enumerates +through devices to query for EGL support. The warning is fine to ignore. Gazebo +should continue to operate without any issues. + + ## Windows ### VisualStudioVersion is not set, please run within a Visual Studio Command Prompt.