I tried compiling the kernel from kernel.org, version 3.3.5, it took a while but it also freezed completely (machine completely unresponsive, no mouse or ping or ctrl+alt+f1 out of it) same as with ubuntu stock kernel.
I am including my syslog of the whole evening with the two different kernels (ubuntu, kernel.org 3.3.5, but since the freeze is sudden never gets anything substantial logged). ** Attachment added: "syslog with several freezes, no errors" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/993187/+attachment/3143187/+files/syslog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/993187 Title: ubuntu 12.04 64bit completely freezes frequently To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/993187/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
