I have the same problem with mesa 6.5.2 (https://bugs.freedesktop.org/show_bug.cgi?id=10726). So, I Installed 6.5.3 from experimental but blender crash :
guessing 'blender-bin' == '/usr/bin/blender-bin' Compiled with Python version 2.4.4. Checking for installed Python... got it! /usr/bin/blender: line 46: 10592 Erreur de segmentation blender-bin "$@" -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]