Try the glxinfo command again. But with a different grep filter:
Code:
LIBGL_DEBUG=verbose glxinfo | grep -iE "opengl|^direct|^libgl|^glx|^client"
client
I'm looking specifically for the glx vendor/version info.
Also: does Mageia have a "video" group? Typing "groups" at a command prompt should list available groups. If you DO have video group, be sure to add your user to it.