salome-meca looks like something to do with CAD/CAM. Depending on when you updated from there is an xorg update and kernel update that could affect things if you are using 3rd party xorg drivers (fglrx or nvidia) and hadn't rebuilt them. It's always a good idea to rebuild 3rd party drivers after kernel or xorg updates.
It does sound like hardware acceleration isn't working. what is the output of
glxinfo | grep direct
EDIT: looks like Salome-Meca itself has a kernel module, that might also need rebuilding if you installed the kernel update since installing salome-mecha