This is an old revision of the document!
“Failed to initialize gtk+: Unable to initialize the Clutter backend: no available drivers found.”
glxinfo
reports GLX Version is 1.2/etc/x2go/x2goagent.options
via -extension GLX
does not work because the application does not have the capability to work without GLX at all.Use a wrapper/proxy library provided by Mesa. The applications will use the supplied libGL.so, which in turn uses the lib interface to talk to the X server (nxagent) rather than the GLX interface. From the applications' perspective, they have GLX 1.4.
(with trusty-updates mesa 10.1.3-0ubuntu0.3)
sudo aptitude build-dep mesa sudo aptitude install scons llvm-dev apt-get source mesa cd mesa scons libgl-xlib export LD_LIBRARY_PATH=`pwd`/build/linux-x86_64-debug/gallium/targets/libgl-xlib/:${LD_LIBRARY_PATH} glxinfo | grep 'GLX version:'
Ensure that some required tools are installed:
emerge -av app-portage/gentoolkit dev-util/scons dev-python/mako
Create a place to store the library - adapt this path to your liking.
mkdir -p /usr/local/share/mesa-libgl-xlib
Place the following line in a suitable place - either in your .bashrc or in the script that calls the individual application:
export LD_LIBRARY_PATH=/usr/local/share/mesa-libgl-xlib/:${LD_LIBRARY_PATH}
Configure portage to keep the working area that is used to compile the Mesa package. Before doing so, ensure that the USE flags for media-libs/mesa are configured to your liking.
mkdir -p /etc/portage/env echo 'FEATURES="noclean"' > /etc/portage/env/features-noclean echo 'media-libs/mesa features-noclean' >> /etc/portage/package.env emerge -av media-libs/mesa
Now compile the library and move it over to the storage location:
export MESA_VERSION=$(equery -q list media-libs/mesa -F '$version') cd /var/tmp/portage/media-libs/mesa-${MESA_VERSION}/work/mesa-${MESA_VERSION} scons libgl-xlib cp build/linux-x86_64-debug/gallium/targets/libgl-xlib/* /usr/local/share/mesa-libgl-xlib/
Warning: The noclean
feature will result in old versions of the working area for media-libs/mesa stacking up in /var/tmp/portage over time. Remove them from time to time - or right now after compiling and saving the library:
cd ebuild /usr/portage/media-libs/mesa/mesa-${MESA_VERSION}.ebuild clean