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Troubleshooting problems: Difference between revisions
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→OpenGL related
m (Xgl/Compiz Fusion related note due to potential performance issues) |
m (→OpenGL related) |
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* Are you currently able to run other OpenGL (non-DirectX) 3D-software with your current system configuration using hardware acceleration? | * Are you currently able to run other OpenGL (non-DirectX) 3D-software with your current system configuration using hardware acceleration? | ||
* Have you previously run other OpenGL software on your current system? | * Have you previously run other OpenGL software on your current system? | ||
* What's the average framerate you get when running FlightGear in a location without scenery? | |||
On *nix systems: | On *nix systems: | ||
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* the output from running glxinfo | * the output from running glxinfo | ||
'''Note:''' While you should normally get to see something like "''direct rendering: Yes''" indicating working hardware acceleration, this doesn't have to be the case if you are running an OpenGL X server such as Xgl-still hardware acceleration may be working. However, it is important to realize that running OpenGL applications on top of current Xgl implementations may rather '''severely''' affect overall application performance, in fact FlightGear may be slowed down by a factor of 2.5 or even more, in addition more complex OpenGL features may not work as expected. So if you are using an GL-accelerated X-server (i.e. to run Compiz/Fusion) under Linux and are experiencing performance issues or other graphics related problems, please verify if these problems persist after having disabled Xgl support, this can usually be accomplished using xgl-switch --disable | '''Note:''' While you should normally get to see something like "''direct rendering: Yes''" indicating working hardware acceleration, this doesn't have to be the case if you are running an OpenGL X server such as Xgl-still hardware acceleration may be working. However, it is important to realize that running OpenGL applications on top of current Xgl implementations may rather '''severely''' affect overall application performance, in fact FlightGear may be slowed down by a factor of 2.5 or even more, in addition more complex OpenGL features (such as multi-texturing and shaders) may not work as expected (e.g. the latest shader-based clouds in CVS/HEAD are unlikely to work with current Xgl implementations). | ||
So if you are using an GL-accelerated X-server (i.e. to run Compiz/Fusion) under Linux and are experiencing performance issues or other graphics related problems, please verify if these problems persist after having disabled Xgl support, this can usually be accomplished using xgl-switch --disable | |||
== General Hardware Info == | == General Hardware Info == | ||