DRM access rights

[Riccardo Mottola <riccardo.mottola%libero.it@localhost>]

Hello,

I'm running 9.99.92, just upgraded


when starting glxgears, but also when running other applications:

libGL error: failed to open drm device: Permission denied
libGL error: failed to load driver: i965

how can I solve this? Usually it is the means of adding oneself to a 
specific group, changing devfs, but found nothing of there like.

Thanks a lot for the hint.

Riccardo