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== known problems ==
== known problems ==
Unfortunately, there are several known problems with using on-screen Mesa and OSMesa at the same time.
The --without-OSMesa configure can be used to disable OSMesa if a problem is encountered.
The --without-OSMesa configure can be used to disable OSMesa if a problem is encountered.
* {{bug|44478}} Segfault with proprietary Nvidia drivers
* {{bug|44478}} segmentation fault when using proprietary Nvidia drivers
* {{bug|44979}} Clumsy/missing configure check
* {{bug|44979}} clumsy/missing configure check, relies on runtime failure
* {{bug|44338}} Doesn't work on Windows (MXE build)
* {{bug|44338}} doesn't work at all on Windows
* [https://bugs.launchpad.net/bugs/1424059 LP #1424059] libosmesa6 is not installable on Ubuntu 14.04 with HWE updates
* [https://bugs.launchpad.net/bugs/1424059 LP #1424059] libosmesa6 is not installable on Ubuntu 14.04 with HWE updates
* {{bug|50479}} doesn't work at all with libglvnd, now standard in most distributions
=== workarounds ===
* Preload the Mesa libGL.so, for example
export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGL.so
== Reporting Bugs ==
* Please include the output of
glxinfo | grep "^OpenGL \(renderer\|core profile version\|vendor\)"