Are those logs from right after the crash? (Xorg only keeps them for one reboot) They don't appear to record one.
Does your screen go blank when the system freezes? If it does, then flashes between off and black with a "busy" mouse pointer several times, that's probably bug 120834. -- blender causes hard freeze https://bugs.launchpad.net/bugs/177518 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
